Physical training apparatus for sports

Abstract

The invention discloses a physical training apparatus for sports in the technical field of physical training, comprising a strong spring, two ends of the strong spring are fixedly connected with connecting rods, one end of each connecting rod is fixedly connected with a holding rod, the front side of the strong spring is provided with a bottom plate, the bottom plate is provided with a buffer reset device, and the buffer reset device is fixedly connected with the holding rod. By adopting the buffer reset device, when the problem of hand slipping occurs in the process of using the arm strength device for exercising, the springback rotation of the strong spring can be effectively stopped, the convex shaft can be pulled to reset in the rotating seat under the elastic force action of the reset spring, and then the inclined stretching rod is slowly loosened; the protruding shaft cannot move outwards from the interior of the rotating seat, at the moment, springback rotation of the strong spring cannot be affected, in other words, the strong spring cannot be hindered by the protruding shaft during normal slow springback, the protruding shaft can extend outwards to limit springback of the strong spring, and therefore the good protection effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of physical training, in particular to a sports physical training device. Background Art

[0002] The arm trainer is a common physical training equipment, mainly used to exercise arm strength and chest muscles. The spring in the middle is bent by holding the arm rods on both sides, and the spring returns to its original position after the arm rods are released. The arm trainer is divided into different levels according to the strength of the user and the force required for use, that is, the force required to bend the arm trainer. Since the arm trainer has a large rebound force, a relatively spacious venue should be selected when using it to avoid it slipping out of the hand and injuring people.

[0003] When using existing arm trainers, the exercise effect is achieved by directly holding the arm rods on both sides to bend the springs. However, after bending the springs, the force needs to be released to reset the springs and then the exercise can be repeated. The springs have a large elastic force when reset and there is no buffer structure. This poses a great safety hazard, especially for novices who start to use arm trainers for exercise. Due to insufficient control of the equipment, the arm trainer is easily slipped out of their hands. Once slipped out of their hands, it is easy to cause harm to people around them.

[0004] Based on this, the present invention designs a sports physical training device to solve the problem that the above-mentioned arm trainer is easy to slip out of the hand during exercise, resulting in safety hazards. Summary of the invention

[0005] The purpose of the present invention is to provide a sports physical training device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a sports physical training equipment, including a strong spring, both ends of the strong spring are respectively fixedly connected to connecting rods, one end of the connecting rod is fixedly connected to a grip rod, a bottom plate is arranged on the front side of the strong spring, and a buffer reset device is arranged on the bottom plate, and the buffer reset device is used to control the strong spring from quickly rebounding after the curled strong spring is de-energized.

[0007] As a further solution of the present invention, the buffering reset device includes a first rotating plate, one end of the first rotating plate is rotatably connected to the side wall of the bottom plate, a sliding shaft is slidably connected inside the first rotating plate, the rear end of the sliding shaft is rotatably connected to the connecting rod, the front end of the bottom plate is fixedly connected to a positioning shaft, the positioning shaft is rotatably connected to a second rotating plate, the positioning shaft is fixedly connected to a third gear, the front end of the bottom plate is rotatably connected to a second gear, the second gear and the third gear are commonly connected to a transmission belt, and the bottom plate is rotatably connected to a first gear that meshes with the second gear.

[0008] As a further solution of the present invention, a rotating shaft is fixedly connected to the first gear, a transmission gear is rotatably connected to the front end of the base plate, a docking gear meshing with the transmission gear is fixedly connected to the outer wall of the fixed frame, a rotating seat is fixedly connected to the front end of the transmission gear, a convex shaft is slidably connected to the inside of the rotating seat, a reset spring for resetting the convex shaft is fixedly connected to the inside of the rotating seat, a convex block that can contact the convex shaft after stretching is fixedly connected to the inner wall of the rotating seat, a sleeve is sleeved on the outside of the transmission gear and the rotating seat, and the sleeve is fixedly connected to the outer wall of the front end of the base plate.

[0009] As a further solution of the present invention, a groove is provided at the bottom of the grip rod, an oblique extension rod with one end obliquely extending downward is arranged inside the groove, and one end of the rotating shaft slides through the rotating shaft and is fixedly connected to the top end of the oblique extension rod.

[0010] As a further solution of the present invention, a groove for docking with the stretched convex shaft is opened on the side wall of the fixing frame, and the outer wall of the convex shaft is a smooth wall, and the convex shaft can completely fit with the inner wall of the groove.

[0011] As a further solution of the present invention, an anti-skid pad with a large friction coefficient is sleeved on the outside of the obliquely extending rod, and the obliquely extending rod can completely fit with the inner wall of the inner groove of the grip rod.

[0012] As a further solution of the present invention, the front end of the positioning shaft is rotatably connected to a fixed frame, and the first gear, the second gear and the third gear are jointly sleeved inside the fixed frame.

[0013] As a further solution of the present invention, one side of the sleeve is provided with an opening, and one side of the transmission gear passes through the opening and meshes with the mating gear teeth.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention adopts a buffering and resetting device, which can effectively stop the rebound rotation of the strong spring when the hand slips out of the hand during exercise with the arm trainer, thereby avoiding harm to the surrounding personnel. When the strong spring needs to be reset, it only needs to continue to squeeze the oblique extension rod to make the strong spring continue to bend, and through transmission, the rotating seat is rotated to a position where the convex shaft is disengaged from the contact with the convex block inside the sleeve. After being disengaged from the squeezing force of the convex block, the convex shaft can be pulled to reset to the inside of the rotating seat under the elastic force of the resetting spring, and then the oblique extension rod is slowly released. When the rotating seat rotates slowly, the convex shaft will not be displaced outward from the inside of the rotating seat, and the rebound rotation of the strong spring will not be affected at this time. That is, the strong spring will not be hindered by the convex shaft during normal slow rebound, and once the hand slip problem occurs, causing the strong spring to rebound quickly, the convex shaft will extend outward to limit the rebound of the strong spring, thereby achieving a good protective effect.

[0016] 2. The present invention adds an inclined extending rod to the grip bar. When the grip bar is held horizontally and rotated, the wrist is subjected to greater force, which may easily cause damage to the wrist if used for a long time. Holding the inclined extending rod at an angle makes it easier for the arm to be subjected to force, which has a better exercise effect and less damage to the wrist. When the strong spring is bent, the inclined extending rod itself is also rotating. The rotation of the first gear drives the inclined extending rod to rotate, thereby compensating for the feed amount of the inclined extending rod rotating with the grip bar. When the strong spring is bent by holding the inclined extending rod, the inclined extending rod can always maintain the same inclination angle in the spatial position, which is more convenient for force. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of the structure of the buffer reset device;

[0019] Figure 3 It is a schematic diagram of the front end structure of the overall structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the local cross-sectional structure of the sleeve;

[0021] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0022] Figure 6 This is a schematic diagram of the front end structure of the base plate (hidden fixed frame).

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Power spring; 2. Connecting rod; 3. Grip rod; 4. Oblique extension rod; 5. Fixed frame; 6. Bottom plate; 7. First rotating plate; 8. Sliding shaft; 9. Second rotating plate; 10. Rotating shaft; 11. Sleeve; 12. Docking gear; 13. Transmission gear; 14. Cam shaft; 15. Reset spring; 16. Rotating seat; 17. First gear; 18. Second gear; 19. Transmission belt; 20. Third gear; 21. Positioning shaft. DETAILED DESCRIPTION

[0025] See also Figure 1-6 The present invention provides a technical solution: a sports physical training device, comprising a powerful spring 1, both ends of the powerful spring 1 are respectively fixedly connected to a connecting rod 2, one end of the connecting rod 2 is fixedly connected to a gripping rod 3, a bottom plate 6 is arranged on the front side of the powerful spring 1, and a buffer reset device is arranged on the bottom plate 6, and the buffer reset device is used to control the powerful spring 1 from rebounding quickly after the curled powerful spring 1 loses its force;

[0026] When the above scheme is put into actual use, during physical training, the user holds the grips 3 on both sides with both hands, and the wrists on both sides are used to bend the strong spring 1 downward to make it bend downward. After the strong spring 1 can no longer be bent, the pressure on the grips 3 is slowly reduced, so that the grips 3 are slowly reset under the elastic force of the strong spring 1. The above actions are repeated to exercise the arms with the force of the strong spring 1 to rotate. If the grips 3 are accidentally released from the hands during the exercise, the grips 3 will be quickly reset under the elastic force of the strong spring 1. The impact force of the grips 3 at this time can easily injure people around. The buffer reset device can limit the grip 3 when the grip 3 is quickly reset, and limit the rotation of the strong spring 1 through the limit device inside the buffer reset device, so that it cannot rotate quickly. That is, when the strong spring 1 is quickly reset after the grip 3 is released from the hands, the buffer reset device prevents it from quickly resetting, so that the grip 3 will not swing and cause harm to people around.

[0027] As a further solution of the present invention, the buffer reset device includes a first rotating plate 7, one end of the first rotating plate 7 is rotatably connected to the side wall of the bottom plate 6, a sliding shaft 8 is slidably connected inside the first rotating plate 7, and the rear end of the sliding shaft 8 is rotatably connected to the connecting rod 2, the front end of the bottom plate 6 is fixedly connected to a positioning shaft 21, the positioning shaft 21 is rotatably connected to a second rotating plate 9, the positioning shaft 21 is fixedly connected to a third gear 20, the front end of the bottom plate 6 is rotatably connected to a second gear 18, the second gear 18 and the third gear 20 are commonly connected to a transmission belt 19, the bottom plate 6 is rotatably connected to a first gear 17 meshing with the second gear 18, the first gear 17 is fixedly connected to a rotating shaft 10, the front end of the bottom plate 6 is rotatably connected to a transmission gear 13, the outer wall of the fixed frame 5 is fixedly connected to a docking gear tooth 12 meshing with the transmission gear 13, and the transmission gear The front end of 13 is fixedly connected with a rotating seat 16, and a convex shaft 14 is slidably connected inside the rotating seat 16. A reset spring 15 for resetting the convex shaft 14 is fixedly connected inside the rotating seat 16. A convex block that can contact the stretched convex shaft 14 is fixedly connected on the inner wall of the rotating seat 16. The transmission gear 13 and the rotating seat 16 are sleeved with a sleeve 11 on the outside, and the sleeve 11 is fixedly connected to the outer wall of the front end of the bottom plate 6. A groove is provided at the bottom of the gripping rod 3, and an oblique extension rod 4 with one end extending obliquely downward is provided inside the groove. One end of the rotating shaft 10 slides through the rotating shaft 10 and is fixedly connected to the top of the oblique extension rod 4. The front end of the positioning shaft 21 is rotatably connected with a fixed frame 5. The first gear 17, the second gear 18 and the third gear 20 are sleeved together inside the fixed frame 5. An opening is provided on one side of the sleeve 11, and one side of the transmission gear 13 passes through the opening and meshes with the docking gear teeth 12.

[0028] When the above scheme is put into actual use, when using the arm trainer, the user holds the oblique extension rods 4 on both sides with both hands, and pulls the oblique extension rods 4 to flip and drive the grip rods 3 to rotate together. The rotation of the grip rods 3 will drive the first rotating plate 7 to rotate through the sliding shaft 8, and the first rotating plate 7 will drive the second rotating plate 9 to rotate together. When the second rotating plate 9 rotates, since the third gear 20 will not rotate with the second rotating plate 9, when the second rotating plate 9 rotates, the second gear 18 rotates around the third gear 20. Since the second gear 18 and the third gear 20 are connected together by a transmission belt 19, when the second gear 18 revolves around the third gear 20, it will drive the second gear 18 to rotate under the action of the transmission belt 19. The rotation of the second gear 18 will drive the first gear 17 to rotate, and the first gear 17 will rotate. The gear 17 drives the oblique extension rod 4 to rotate through the rotating shaft 10. The purpose of this is that by holding the inclined oblique extension rod 4 instead of holding the horizontal grip 3 to bend the strong spring 1, the pressure on the user's wrist is smaller when applying pressure. Because when the grip 3 is held horizontally and rotated, the wrist is subjected to greater force, which is easy to cause damage to the wrist when used for a long time. Holding the oblique extension rod 4 obliquely makes it easier to apply force to the arm, which has a better exercise effect and less damage to the wrist. When the strong spring 1 is bent, the oblique extension rod 4 itself is also rotating. The rotation of the first gear 17 drives the oblique extension rod 4 to rotate, which compensates for the feed amount of the oblique extension rod 4 rotating with the grip 3. When the oblique extension rod 4 is held and the strong spring 1 is bent, the oblique extension rod 4 can always maintain the same inclination angle in the spatial position, which is more convenient for force.

[0029] When the hand slips out of the hand during exercise, and the strong spring 1 is in a bent state at this time, the oblique extension rod 4 is not subjected to external force after the hand slips out, and the strong spring 1 begins to reset its deformation under the action of its own elastic force, and the strong spring 1 drives the grip rod 3 to rotate, and the grip rod 3 drives the first rotating plate 7 to rotate, and the first rotating plate 7 drives the fixed frame 5 to rotate, and the fixed frame 5 drives the transmission gear 13 meshing with the docking gear 12 inside the sleeve 11 to rotate through the docking gear 12 on one side, and because the strong spring 1 rebounds quickly, the docking gear 12 drives the transmission gear 13 meshing with the docking gear 12 The gear 13 rotates rapidly, and the transmission gear 13 drives the rotating seat 16 to rotate, and the convex shaft 14 inside the rotating seat 16 is stretched and the reset spring 15 is thrown out. When the convex shaft 14 contacts the convex block inside the sleeve 11, it is squeezed. The convex block restricts the rotation of the convex shaft 14, so that the rotating seat 16 cannot rotate. After a series of transmissions, the strong spring 1 is finally unable to rotate. At this time, due to the squeezing force between the convex shaft 14 and the convex block, the reset spring 15 cannot stretch the convex shaft 14 to retract into the rotating seat 16. That is, when the strong spring When the strong spring 1 rebounds quickly, the convex shaft 14 is stretched and finally contacts the convex block inside the sleeve 11 to limit the rotation of the convex shaft 14, thereby realizing the limited rebound of the strong spring 1. The purpose of this is that when the problem of slipping out of the hand occurs, the rebound rotation of the strong spring 1 can be effectively stopped to avoid causing harm to the surrounding personnel. When the strong spring 1 needs to be reset, it is only necessary to continue to squeeze the oblique extension rod 4 so that the strong spring 1 continues to bend, and the rotating seat 16 is rotated to the position where the convex shaft 14 is out of contact with the convex block inside the sleeve 11 through transmission, and the convex shaft 14 is out of contact with the convex block inside the sleeve 11. After the extrusion pressure, the convex shaft 14 can be pulled to reset to the inside of the rotating seat 16 under the elastic force of the reset spring 15, and then the oblique extension rod 4 is slowly loosened. When the rotating seat 16 rotates slowly, the convex shaft 14 will not move outward from the inside of the rotating seat 16, and the rebound rotation of the strong spring 1 will not be affected at this time, that is, the strong spring 1 will not be hindered by the convex shaft 14 during the normal slow rebound. Once the problem of slipping out of the hand occurs and the strong spring 1 rebounds quickly, the convex shaft 14 will extend outward to limit the rebound of the strong spring 1, thereby achieving a good protective effect.

[0030] As a further solution of the present invention, a notch is provided on the side wall of the fixing frame 5 for docking with the stretched convex shaft 14, and the outer wall of the convex shaft 14 is a smooth wall, and the convex shaft 14 can be completely fitted with the inner wall of the notch;

[0031] When the above scheme is put into actual use, they are completely fitted together so that when the convex shaft 14 extends outward and contacts the protrusion, the protrusion can fix the convex shaft 14 to a position that fits tightly with the slot, thereby fixing the convex shaft 14 and avoiding a large gap between the convex shaft 14 and the slot that causes the protrusion to be unable to fix the convex shaft 14, so that the convex shaft 14 can retract into the slot.

[0032] As a further solution of the present invention, the oblique extension rod 4 is sleeved with an anti-skid pad with a large friction coefficient, and the oblique extension rod 4 can completely fit with the inner wall of the inner groove of the grip rod 3;

[0033] When the above solution is put into actual use, the anti-skid pad can further increase the friction force, making it less likely to slip out of the hand when holding the oblique extension rod 4.

[0034] Working principle: when using the arm trainer, the user holds the oblique extension rods 4 on both sides with both hands, and pulls the oblique extension rods 4 to flip and drive the grip rods 3 to rotate together. The rotation of the grip rods 3 will drive the first rotating plate 7 to rotate through the sliding shaft 8, and the first rotating plate 7 will drive the second rotating plate 9 to rotate together. When the second rotating plate 9 rotates, since the third gear 20 will not rotate with the second rotating plate 9, when the second rotating plate 9 rotates, the second gear 18 rotates around the third gear 20. Since the second gear 18 and the third gear 20 are connected together by a transmission belt 19, when the second gear 18 revolves around the third gear 20, it will drive the second gear 18 to rotate under the action of the transmission belt 19. The rotation of the second gear 18 will drive the first gear 17 to rotate. The first gear 17 The oblique extension rod 4 is driven to rotate by the rotating shaft 10. The purpose of this is that by holding the inclined oblique extension rod 4 instead of holding the horizontal grip 3 to bend the strong spring 1, the pressure on the user's wrist is smaller when applying pressure. Because when the grip 3 is held horizontally and rotated, the wrist is subjected to greater force, which is easy to cause damage to the wrist after long-term use. Holding the oblique extension rod 4 at an angle makes it easier to apply force to the arm, which has a better exercise effect and less damage to the wrist. Since the oblique extension rod 4 itself is also rotating when the strong spring 1 is bent, the oblique extension rod 4 is driven to rotate by the rotation of the first gear 17 to compensate for the feed amount of the oblique extension rod 4 rotating with the grip 3, so that when the oblique extension rod 4 is held and the strong spring 1 is bent, the oblique extension rod 4 can always maintain the same inclination angle in the spatial position, which is more convenient for force.

[0035] When the problem of slipping out of the hands occurs during exercise, and the strong spring 1 is in a bent state at this time, the oblique extension rod 4 is not subject to external force after the hands are slipped out, and the strong spring 1 begins to reset its deformation under the action of its own elastic force, and the strong spring 1 drives the grip rod 3 to rotate, and the grip rod 3 drives the first rotating plate 7 to rotate, and the first rotating plate 7 will drive the fixed frame 5 to rotate, and the fixed frame 5 drives the transmission gear 13 meshing with the docking gear 12 inside the sleeve 11 to rotate through the docking gear 12 on one side, and since the strong spring 1 has a fast rebound speed, the docking gear 12 will drive the transmission gear 13 to rotate quickly, and at this time the transmission gear 13 drives the rotating seat 16 to rotate, and the convex shaft 14 inside the rotating seat 16 is stretched and the reset spring 15 is thrown out, and when the convex shaft 14 contacts the convex block inside the sleeve 11, it is squeezed, and the convex block restricts the rotation of the convex shaft 14, thereby causing the rotating seat 16 to be unable to rotate, and after a series of transmissions, it eventually leads to The strong spring 1 cannot rotate, and at this time, due to the squeezing force between the cam 14 and the protrusion, the return spring 15 cannot stretch the cam 14 back to the inside of the rotating seat 16, that is, when the strong spring 1 rebounds quickly, the cam 14 is finally stretched to contact the protrusion inside the sleeve 11 to limit the rotation of the cam 14, thereby realizing the limited rebound of the strong spring 1. When the strong spring 1 needs to be reset, it is only necessary to continue to squeeze the oblique extension rod 4 so that the strong spring 1 continues to bend, and through transmission, the rotating seat 16 is rotated to the position where the cam 14 is out of contact with the protrusion inside the sleeve 11. After the squeezing force of the protrusion is disengaged, the cam 14 can be pulled to reset to the inside of the rotating seat 16 under the action of the elastic force of the return spring 15, and then the oblique extension rod 4 is slowly released. When the rotating seat 16 rotates slowly, the cam 14 will not move outward from the inside of the rotating seat 16, and at this time it will not affect the rebound rotation of the strong spring 1.

Claims

1. A sports physical training device, comprising a strong spring (1), both ends of the strong spring (1) are respectively fixedly connected to a connecting rod (2), one end of the connecting rod (2) is fixedly connected to a grip rod (3), characterized in that: A bottom plate (6) is arranged on the front side of the strong spring (1), and a buffer reset device is arranged on the bottom plate (6). The buffer reset device is used to control the strong spring (1) to be unable to rebound quickly after the curled strong spring (1) loses its force.

2. A sports physical training device according to claim 1, characterized in that: The buffer reset device comprises a first rotating plate (7), one end of the first rotating plate (7) is rotatably connected to the side wall of the bottom plate (6), a sliding shaft (8) is slidably connected inside the first rotating plate (7), a rear end of the sliding shaft (8) is rotatably connected to the connecting rod (2), a front end of the bottom plate (6) is fixedly connected to a positioning shaft (21), a second rotating plate (9) is rotatably connected to the positioning shaft (21), a third gear (20) is fixedly connected to the positioning shaft (21), a front end of the bottom plate (6) is rotatably connected to a second gear (18), the second gear (18) and the third gear (20) are commonly connected to a transmission belt (19), and a first gear (17) meshing with the second gear (18) is rotatably connected to the bottom plate (6).

3. A sports physical training device according to claim 2, characterized in that: The first gear (17) is fixedly connected to a rotating shaft (10); the front end of the base plate (6) is rotatably connected to a transmission gear (13); the outer wall of the fixed frame (5) is fixedly connected to a docking gear (12) meshing with the transmission gear (13); the front end of the transmission gear (13) is fixedly connected to a rotating seat (16); a convex shaft (14) is slidably connected inside the rotating seat (16); a reset spring (15) for resetting the convex shaft (14) is fixedly connected inside the rotating seat (16); a convex block capable of contacting the stretched convex shaft (14) is fixedly connected to the inner wall of the rotating seat (16); a sleeve (11) is sleeved on the outside of the transmission gear (13) and the rotating seat (16); and the sleeve (11) is fixedly connected to the outer wall of the front end of the base plate (6).

4. A sports and physical fitness training device according to claim 2, characterized in that: A groove is provided at the bottom of the grip rod (3), and an oblique extension rod (4) with one end obliquely extending downward is arranged inside the groove. One end of the rotating shaft (10) slides through the rotating shaft (10) and is fixedly connected to the top end of the oblique extension rod (4).

5. A sports physical training device according to claim 3, characterized in that: A notch for docking with the stretched convex shaft (14) is provided on the side wall of the fixing frame (5); the outer wall of the convex shaft (14) is a smooth wall, and the convex shaft (14) can completely fit with the inner wall of the notch.

6. A sports physical training device according to claim 4, characterized in that: The obliquely extending rod (4) is sleeved with an anti-skid pad with a large friction coefficient on the outside, and the obliquely extending rod (4) can be completely fitted with the inner wall of the inner groove of the grip rod (3).

7. A sports physical training device according to claim 2, characterized in that: The front end of the positioning shaft (21) is rotatably connected to a fixed frame (5), and the first gear (17), the second gear (18) and the third gear (20) are sleeved together inside the fixed frame (5).

8. A sports physical training device according to claim 3, characterized in that: One side of the sleeve (11) is provided with an opening, and one side of the transmission gear (13) passes through the opening and meshes with the docking gear teeth (12).

Images