Auxiliary training device for backward bending and stretching

Abstract

The utility model provides an auxiliary training device for backward bending and stretching, and relates to the technical field of training devices. Comprising a training frame, the training frame is provided with at least one supporting leg, a cross beam is arranged at the upper end of the supporting leg, an oscillator frame is fixedly installed in the middle or at the tail end of the cross beam, an oscillator steering wheel is arranged on the oscillator frame or the cross beam, a pulley oscillator is arranged below the oscillator steering wheel, and a grabbing handle is arranged below the pulley oscillator. The grabbing handle is connected with one end of the traction rope, and the other end of the traction rope is connected with the balancing weight set through the steering pulley. According to the backward bending and stretching auxiliary training device, no sheltered object is arranged below the pulley oscillator, so that a human body can perform backward bending and stretching activities below the pulley oscillator; in the backward bending and stretching process of a user, the balancing weight set is pulled upwards, the grabbing handle is stretched downwards according to the requirement of the human body, and then the influence of the gravity of the human body on the backward bending and stretching difficulty is counteracted or relieved through the weight of the balancing weight set.

Description

TECHNICAL FIELD

[0001] The utility model relates to training device technical field, especially a kind of back bending and stretching auxiliary training device. BACKGROUND

[0002] The center of gravity changes backward and downward in the process of human back bending, which makes back bending more difficult, and many people cannot guarantee their safety back bending, so they dare not try easily, and thus cannot stretch the muscles in the front side of the body. In addition, the movement of the center of gravity makes it difficult for most people to complete this action, so the spine is not extended in the axial direction, which causes the lumbar vertebrae to bear a lot of shear force. Therefore, it is necessary to use external force to offset or reduce the influence of gravity to help better complete this action.

[0003] In order to complete back bending and stretching with the help of external force, the existing method is to use a yoga rope. However, the yoga rope has the following problems: 1. It is not as flexible as a pulley, and the length cannot be changed as needed during back bending; 2. There is no weight to offset or reduce the influence of gravity on back bending, and it only serves to simply hold the waist to help stabilize, and cannot assist throughout the action starting and ending process; 3. Without proper resistance, such back bending relies on the centrifugal force of the anterior spinal muscles, so it cannot stretch the spine more efficiently through the principle of reciprocal inhibition. SUMMARY

[0004] The utility model provides a back bending and stretching auxiliary training device to solve the above problems of the prior art, which includes a training frame. A grip handle for back bending and stretching is provided at the upper end of the training frame. The grip handle is connected to a counterweight set through a traction rope and a turning pulley. During the back bending and stretching of the user, the counterweight set is pulled upward, and the grip handle is stretched downward as needed by the human body, thereby offsetting or reducing the influence of body weight on the difficulty of back bending and stretching through the weight of the counterweight set.

[0005] Therefore, the technical solution of the utility model is a back bending and stretching auxiliary training device, which includes a training frame. The training frame is provided with at least one support leg. A crossbeam is provided at the upper end of the support leg. A swing device holder is fixedly installed at the middle or end of the crossbeam. A swing device turning wheel is provided on the swing device holder or the crossbeam. A pulley swing device is provided below the swing device turning wheel. A grip handle is connected to one end of a traction rope. The other end of the traction rope is connected to a counterweight set through a turning pulley.

[0006] Further, the pulley swing device is fixedly or rotatably connected to the swing device holder.

[0007] Further, the pulley swing device is provided with a swing device pulley inside.

[0008] Further, the lower end of the grip handle is provided with a grip rod, which is a horizontal rod or an inclined rod.

[0009] Further, an angle of 30-35 degrees is formed between the grip rod and the horizontal plane.

[0010] Further, the number of support legs is two, and the upper first steering wheel and the upper second steering wheel are symmetrically arranged on the two sides of the crossbeam of the training frame, the upper first steering wheel is located on the inner side of the upper second steering wheel, the lower first steering wheel and the lower second steering wheel are symmetrically arranged on the two sides of the lower end of the training frame, the lower first steering wheel is located on the inner side of the lower second steering wheel, and the upper first steering wheel, the upper second steering wheel, the lower first steering wheel and the lower second steering wheel are provided with a counterweight group.

[0011] Further, the counterweight group is composed of multiple counterweights, the upper end of the counterweight group is provided with a counterweight pulley, the middle part of the counterweight group is provided with a connecting shaft, the connecting shaft is provided with a counterweight bolt, the lower part of the counterweight group is provided with a buffer washer, the two sides of the connecting shaft of the counterweight group are provided with guide rods, the upper and lower ends of the guide rods are fixedly connected with the training frame, and the counterweight group is slidably connected with the guide rods.

[0012] Further, one side of the counterweight group is provided with a lifting adjusting rod, a plurality of adjusting insertion holes are arranged on the lifting adjusting rod, a lifting adjusting handle is installed on the lifting adjusting rod, a lifting bolt is arranged on the lifting adjusting handle, and one side of the lifting adjusting handle is fixedly connected with one end of the traction rope.

[0013] Further, the support leg of the training frame is provided with an auxiliary support leg.

[0014] The back bending and stretching auxiliary training device comprises a training frame, the training frame is provided with a support leg, the upper end of the support leg is provided with a crossbeam, one end of the crossbeam is fixedly connected with the support leg, the other end of the crossbeam is provided with a steering wheel, the lower part of the steering wheel is provided with a grip handle, the grip handle is connected with one end of a traction rope, and the other end of the traction rope is connected with a counterweight group through a steering pulley.

[0015] The back bending and stretching auxiliary training device has the advantages that there is no object shielding the lower part of the pulley swing device, so that the human body can perform the back bending and stretching activity under the pulley swing device; the back bending and stretching auxiliary training device can assist the back bending by offsetting or reducing the influence of gravity, solves the defect problem of the yoga rope assisted back bending and stretching, reduces the difficulty of back bending, and improves the efficiency of action completion.

[0016] In addition, the left and right sides of the rocker frame are respectively provided with a pulley rocker, which is freely rotatable on the rocker frame to adapt to users with different shoulder widths or different hand spacing requirements. The gripping rod of the gripping handle is a horizontal rod or an inclined rod. When the gripping rod has an inclination angle of 30-35 degrees, the angle conforms to the ergonomics of hand gripping to increase the stability and comfort of gripping. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 is Figure 1 a front view;

[0019] Figure 3 is Figure 1 a rear view;

[0020] Figure 4 is Figure 1 a side view;

[0021] Figure 5 is Figure 1 a schematic diagram of the structure of the left half;

[0022] Figure 6 is a schematic diagram of the structure of the traction rope winding;

[0023] Figure 7 is Figure 6 a front view;

[0024] Figure 8 is a schematic diagram of the handle structure without inclination angle;

[0025] Figure 9 is a schematic diagram of the handle structure with inclination angle;

[0026] Figure 10 is a schematic diagram of the pulley rocker.

[0027] Explanation of symbols in the drawings:

[0028] 1. training frame; 101. support leg; 102. crossbeam; 11. upper first steering wheel; 12. upper second steering wheel; 13. lower first steering wheel; 14. lower second steering wheel; 15. auxiliary support leg; 2. rocker frame; 21. rocker steering wheel; 22. pulley rocker; 3. gripping handle; 31. gripping rod; 4. handle hook; 5. lifting adjustment rod; 51. adjustment socket; 6. lifting adjustment handle; 61. lifting pin; 7. counterweight group; 71. counterweight pulley; 72. counterweight pin; 73. buffer washer; 8. guide rod; 9. traction rope. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1-10 As shown, the utility model provides a backbend and stretching auxiliary training device, which includes a training frame 1, the training frame 1 is provided with at least one supporting leg 101, and the upper end of the supporting leg 101 is provided with a crossbeam 102, the training frame 1 is used for supporting and fixing, when the training frame 1 is provided with one supporting leg 101, one end of the crossbeam 102 is fixedly connected to the training frame 1, and the other end of the crossbeam 102 is provided with a gripping handle 3 for backbend and stretching, when the training frame 1 has two supporting legs 101, the two ends of the crossbeam 102 are respectively fixedly connected to the training frame 1, and the middle part of the crossbeam 102 is provided with a gripping handle 3 for backbend and stretching.

[0031] Specifically, one or two gripping handles 3 for backbend and stretching are provided on the crossbeam 102 of the training frame 1. When the number of gripping handles 3 is two, the two gripping handles 3 are symmetrically arranged, and the user's hands respectively use one of the gripping handles 3. Each gripping handle 3 is connected to a counterweight group 7 through a traction rope 9 and multiple steering pulleys. The traction rope 9 is a steel wire rope. During the user's backbend and stretching process, the counterweight group 7 is pulled upward, and the gripping handles 3 are stretched downward as the human body needs, and then the weight of the counterweight group 7 is used to offset or reduce the influence of human body gravity on the difficulty of backbend and stretching.

[0032] When only one gripping handle 3 for backbend and stretching is provided on the crossbeam 102 of the training frame 1, the user holds the gripping handle 3 with both hands. The gripping handle 3 can also be other existing handle shapes, such as a straight rod handle, a zigzag handle, an ergonomic handle, etc. The gripping handle 3 is connected to a counterweight group 7 through a traction rope 9 and multiple steering pulleys. During the user's backbend and stretching process, the counterweight group 7 is pulled upward, and the gripping handle 3 is stretched downward as the human body needs, and then the weight of the counterweight group 7 is used to offset or reduce the influence of human body gravity on the difficulty of backbend and stretching.

[0033] Specifically, when the training rack 1 has two support legs 101, the middle position of the crossbeam 102 of the training rack 1 is fixedly installed with a swing rack 2, both ends of the swing rack 2 are symmetrically provided with swing steering wheels 21, two swing steering wheels 21 correspond to two grip handles 3 respectively, and one pulley swing 22 is arranged below each swing steering wheel 21. The inside of the pulley swing 22 is provided with one or more swing pulleys, for example, the inside of the pulley swing 22 is provided with three swing pulleys, the three swing pulleys are staggered in up and down directions, the upper swing pulley and the lower swing pulley are on a vertical line, and the middle swing pulley is partially staggered with the upper swing pulley and the lower swing pulley. Even if the training rack 1 is provided with multiple support legs 101, a sufficient distance is arranged between the pulley swing 22 and the support legs 101, and the user can perform back bending and stretching activities below the pulley swing 22 when using the grip handle 3, without interfering with the support legs 101 of the training rack 1.

[0034] When the training rack 1 is provided with one support leg 101, the end position of the crossbeam 102 of the training rack 1 is fixedly installed with a swing rack 2, and the swing rack 2 is provided with a swing steering wheel 21. The lower side of the swing steering wheel 21 is provided with a pulley swing 22.

[0035] The pulley swing 22 is fixedly or rotatably connected with the swing rack 2. When the pulley swing 22 is rotatably connected with the swing rack 2, one grip handle 3 is arranged below each pulley swing 22. The upper side of the grip handle 3 is provided with a handle hook 4. The grip handle 3 is connected with one end of the traction rope 9 through the handle hook 4. Since the pulley swing 22 can freely rotate on the swing rack 2, when two grip handles 3 are arranged, the distance between the two grip handles 3 changes during the downward pulling process according to different shoulder widths of the human body or different comfortable distances between the grip handles, and the pulley swing 22 rotates on the swing rack 2 to adapt to the change, so that the traction rope 9 is always located on the center line of the swing pulley, avoiding friction between the traction rope 9 and the edge of the swing pulley, and avoiding damage to the traction rope 9.

[0036] The shape of the grip handle 3 can be a ring or a polygon. In a specific embodiment, the lower end of the grip handle 3 is provided with a grip rod 31, which is a horizontal rod or an inclined rod, that is, the grip rod 31 is parallel to the horizontal plane or has an included angle with the horizontal plane. When the grip rod 31 of the grip handle 3 has an inclination angle of 30-35 degrees, the angle conforms to the ergonomics of the human body when the hand grips, and it is easier to grip the handle.

[0037] When the training rack 1 is provided with two support legs, the upper end of the training rack 1 is symmetrically provided with an upper first steering wheel 11 and an upper second steering wheel 12, the upper first steering wheel 11 is located on the inner side of the upper second steering wheel 12, and the lower end of the training rack 1 is symmetrically provided with a lower first steering wheel 13 and a lower second steering wheel 14, the lower first steering wheel 13 is located on the inner side of the lower second steering wheel 14.

[0038] The upper first steering wheel 11, the upper second steering wheel 12, the lower first steering wheel 13 and the lower second steering wheel 14 are provided with a counterweight group 7, the counterweight group 7 is composed of a plurality of counterweights, the upper end of the counterweight group 7 is provided with a counterweight pulley 71, the middle part of the counterweight group 7 is provided with a connecting shaft, the connecting shaft is provided with a counterweight pin 72, adjusting the up and down position of the counterweight pin 72 can adjust the number of selected counterweights, the lower part of the counterweight group 7 is provided with a buffer washer 73, the buffer washer 73 is used for buffering when the counterweight group 7 is returned to the original position, the two sides of the connecting shaft of the counterweight group 7 are provided with guide rods 8, the upper and lower ends of the guide rods 8 are fixedly connected with the training rack, the counterweight group 7 is slidingly connected with the guide rods 8, the guide rods 8 are used for limiting and guiding the counterweight group 7, so as to increase the safety of the use of the counterweight group 7.

[0039] The inner side of the counterweight group 7 is provided with a lifting adjustment rod 5, the lifting adjustment rod 5 is provided with a plurality of adjustment insertion holes 51, the lifting adjustment rod 5 is installed with a lifting adjustment handle 6, the lifting adjustment handle 6 is provided with a lifting pin 61, the lifting pin 61 is matched with the adjustment insertion hole 51 and is used for fixing and adjusting the position of the lifting adjustment handle 6, one side of the lifting adjustment handle 6 is fixedly connected with one end of the traction rope 9.

[0040] The lifting adjustment handle 6 and the gripping handle 3 are respectively connected with one end of the traction rope 9, by adjusting the position of the lifting adjustment handle 6 on the lifting adjustment rod 5, the initial position of the gripping handle 3 can be adjusted, so as to adapt to the use of people with different heights.

[0041] The winding connection mode of the traction rope 9 between the lifting adjustment handle 6 and the gripping handle 3 is that one end of the traction rope 9 is connected with the gripping handle 3 through the handle hook 4, then passes through the three swing pulleys of the pulley swing device 22, and is wound around the swing steering wheel 21, the upper first steering wheel 11 and the counterweight pulley 71 in turn, and is wound around the upper second steering wheel 12, the lower second steering wheel 14 and the lower first steering wheel 13 in turn, and is fixedly connected with the lifting adjustment handle.

[0042] In order to ensure the stability of the training rack 1, the support leg 101 of the training rack 1 is provided with an auxiliary support leg 15, the auxiliary support leg 15 extends to the front side or the rear side of the training rack 1, so as to increase the stability of the training rack 1.

[0043] The back bending and stretching auxiliary training device with two grip handles 3 is used in the following way: first, adjust the position of the lifting adjusting handle 6 on the lifting adjusting rod 5, and then adjust the initial position of the grip handle 3, so that the grip handle 3 is above the head of the human body. Since each side of the swing frame 2 is provided with a pulley swing 22, the pulley swing 22 can also rotate freely on the swing frame 2. During the downward pulling process after the interval between the two grip handles 3 is changed according to the different shoulder widths of the human body or the comfort requirements of the interval between the grip handles, the pulley swing 22 will rotate on the swing frame 2 to adapt to the situation, so that the traction rope 9 is always on the center line of the swing pulley, avoiding friction between the traction rope 9 and the edge of the swing pulley and damage to the traction rope 9, that is, the interval between the grip handles can be adjusted adaptively according to the different shoulder widths of the human body or the comfort requirements.

[0044] The grip rod 31 of the grip handle 3 is a horizontal rod or an inclined rod. When the grip rod 31 has an inclination angle of 30-35 degrees, the angle meets the ergonomics of hand gripping to increase the stability and comfort of gripping.

[0045] The counterweight group 7 on the traction rope 9 is adjusted to the appropriate weight as needed. The user holds the grip handle 3 with both hands in a palm-to-palm position, that is, a grip position. The user can also slightly rotate the arm according to the comfort. The human body starts back bending and stretching from slightly behind the pulley swing 22, from the head and cervical vertebrae to the thoracic vertebrae, to the lumbar vertebrae, to the hip joint, and needs to move forward in small steps until the final back bending action is achieved. At this time, the human body will be on the front side below the pulley swing 22. The relative position change between the human body and the pulley swing 22, that is, the resistance, can change the center of gravity and muscle force exertion mode of the machine resistance during back bending, thereby assisting the back bending of the human body.

[0046] The back bending and stretching auxiliary training device can make the human body perform back bending and stretching activities below the pulley swing 22 without any obstruction below the pulley swing 22. The device can assist back bending by offsetting or reducing the effect of gravity, change the centrifugal movement of the anterior spinal muscles and hip flexor muscles to centripetal movement of the spinal extensor muscles and hip extensor muscles, reduce the difficulty of back bending, and improve the efficiency of action completion. The device solves the problem of the defects of the yoga rope in assisting back bending and stretching.

[0047] In a specific embodiment, in order to save space and reduce production cost, a back bending and stretching auxiliary training device includes a training frame, the training frame is provided with support legs, the upper end of the support leg is provided with a cross beam, one end of the cross beam is fixedly connected with the support leg, the other end of the cross beam is provided with a steering wheel, the lower side of the steering wheel is provided with a grip handle, one end of the grip handle is connected with a traction rope, the other end of the traction rope is connected with a counterweight group through a steering pulley.

[0048] Similarly, the back bending and stretching auxiliary training device has no shielding object below the steering wheel of the cross beam, and the human body can perform the back bending and stretching activity below the steering wheel. The back bending and stretching auxiliary training device can assist the back bending by offsetting or reducing the influence of gravity, can change the eccentric movement of the back bending action from the front side muscle of the spine and the hip flexor muscle to the centripetal movement of the spine extensor muscle and the hip extensor muscle, reduces the difficulty of the back bending, and improves the efficiency of the action completion. The defects of the yoga rope assisted back bending and stretching are solved.

[0049] The above is only a specific embodiment of the utility model, and cannot limit the range of the utility model. The replacement of equivalent components or equivalent changes and modifications made within the scope of the utility model patent protection should still be within the scope of the utility model claims.

Claims

1. A posterior hyperextension assist trainer, characterized by, The utility model provides a training frame, the training frame is equipped with at least one support leg, the upper end of support leg is equipped with crossbeam, the middle part or the end of crossbeam is fixedly installed with swing frame, swing frame or crossbeam is equipped with swing frame steering wheel, the lower side of swing frame steering wheel is equipped with pulley swing, the lower side of pulley swing is equipped with grip handle, one end of grip handle is connected with traction rope, the other end of traction rope is connected with counterweight group through steering pulley.

2. A posterior hyperextension assist trainer according to claim 1, wherein, The pulley swing is fixedly or rotatably connected with the swing frame.

3. The posterior hyperextension assist trainer of claim 1, wherein, The pulley swing is internally provided with a swing pulley.

4. The hyperextension assist trainer of claim 1, wherein, The lower end of the grip handle is provided with a grip rod, which is a horizontal rod or an inclined rod.

5. A hyperextension assist trainer as recited in claim 4, wherein, An angle of 30-35 degrees is provided between the grip rod and the horizontal plane.

6. The hyperextension assist trainer of claim 1, wherein, The number of support legs is two, and the upper first steering wheel and the upper second steering wheel are symmetrically arranged on both sides of the crossbeam of the training frame, the upper first steering wheel is located on the inner side of the upper second steering wheel, the lower first steering wheel and the lower second steering wheel are symmetrically arranged on both sides of the lower end of the training frame, the lower first steering wheel is located on the inner side of the lower second steering wheel, and the counterweight group is arranged between the upper first steering wheel, the upper second steering wheel, the lower first steering wheel and the lower second steering wheel.

7. The hyperextension assist trainer of claim 1, wherein, The counterweight group is composed of multiple counterweights, the upper end of the counterweight group is provided with a counterweight pulley, the middle part of the counterweight group is provided with a connecting shaft, the connecting shaft is provided with a counterweight bolt, the lower side of the counterweight group is provided with a buffer washer, the two sides of the connecting shaft of the counterweight group are provided with guide rods, the upper and lower ends of the guide rods are fixedly connected with the training frame, and the counterweight group is slidably connected with the guide rods.

8. The hyperextension assist trainer of claim 1, wherein, One side of the counterweight group is provided with a lifting adjusting rod, the lifting adjusting rod is provided with multiple adjusting insertion holes, the lifting adjusting rod is provided with a lifting adjusting handle, the lifting adjusting handle is provided with a lifting bolt, and one side of the lifting adjusting handle is fixedly connected with one end of the traction rope.

9. The hyperextension assist trainer of claim 1, wherein, The support leg of the training frame is provided with an auxiliary support leg.

10. A posterior hyperextension assist trainer characterized by, The utility model provides a training frame, the training frame is equipped with support leg, the upper end of support leg is equipped with crossbeam, one end of crossbeam is fixedly connected with support leg, the other end of crossbeam is installed with steering wheel, the lower side of steering wheel is equipped with grip handle, one end of grip handle is connected with traction rope, the other end of traction rope is connected with counterweight group through steering pulley.

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