Upper limb exercise device for fitness

Abstract

The utility model relates to the technical field of body -building equipment discloses a body -building upper limb training device, including first stand, the first stand is fixedly connected with the seat, first stand one side is fixedly connected with first crossbeam, first crossbeam both sides are fixedly connected with the footrest, first crossbeam is fixedly connected with second stand, be provided with hand -operated mechanism on second stand, hand -operated mechanism includes connecting column, connecting column fixedly connected on second stand, connecting column is fixedly connected with second crossbeam, second crossbeam is fixedly connected with transmission case in, transmission case is rotatably connected with first pivot, first pivot below position swing joint has the sleeve rod. Adopt silicon oil as resistance medium, utilize the resistance that damper blade rotates in silicon oil produces, avoid the wear and tear problem of traditional friction regulation, through the adjustment ring drive sleeve rod moves, change the depth that damper blade inserts silicon oil, realize resistance multistage regulation, adapt to different training needs, and the resistance is more stable, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to an upper limb training device for fitness. Background Technology

[0002] Upper limb fitness training equipment is a fitness device specifically designed to exercise the muscles of the upper limbs, such as the arms, shoulders, back, and chest. This equipment works by resisting resistance, allowing the upper limb muscles to be exercised through contraction and extension, which can enhance muscle strength, improve muscle endurance, and improve limb coordination.

[0003] Hand-cranked upper limb training equipment is a device that allows users to exercise their upper limbs by turning a crank handle. Its core components include the crank handle, transmission mechanism, and resistance adjustment device. Most hand-cranked upper limb training equipment adjusts the resistance by setting the contact force between the friction plate and the rotating part of the hand-cranked part. Turning the knob can change the pressure of the friction plate on the flywheel or shaft. The greater the pressure, the stronger the friction and the greater the resistance, and vice versa. However, the friction plate is in direct contact with the rotating part, and long-term use can easily cause wear due to friction, resulting in unstable resistance and reduced accuracy. At the same time, the friction plate needs to be replaced regularly after it wears out, which increases maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide an upper limb training device for fitness, which uses silicone oil as the resistance medium. The resistance is changed by adjusting the insertion depth of the damping blades, avoiding friction and wear, ensuring stable resistance, convenient adjustment, and reducing maintenance costs. This invention can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fitness upper limb training device includes a first column, a seat fixedly connected to the first column, a first crossbeam fixedly connected to one side of the first column, foot pedals fixedly connected to both sides of the first crossbeam, a second column fixedly connected to the first crossbeam, and a hand crank mechanism provided on the second column. The hand crank mechanism includes a connecting column fixedly connected to the second column, a second crossbeam fixedly connected to the connecting column, a transmission box fixedly connected inside the second crossbeam, a first rotating shaft rotatably connected inside the transmission box, a sleeve rod movably connected below the first rotating shaft, an adjusting ring movably connected to the outside of the connecting column, and a second rotating shaft rotatably connected inside the transmission box located above the first rotating shaft. Handles are fixedly connected to both sides of the second rotating shaft extending to the outside of the second crossbeam.

[0007] As a further preferred embodiment of this utility model, a partition is fixedly connected inside the second column near the connecting column. Silicone oil is stored inside the second column located above the partition. Storing silicone oil with a certain viscosity inside the second column can provide resistance to the rotation of the sleeve rod, thereby providing damping for the rotation of the first rotating shaft. Multiple sliding grooves are opened on the inner side of the connecting column.

[0008] As a further preferred embodiment of this utility model, a first bevel gear is fixedly connected to the top of the first rotating shaft, and a key shaft is fixedly connected to the bottom of the first rotating shaft. The key shaft enables the sleeve rod to rotate when the first rotating shaft rotates, and simultaneously provides conditions for axial and radial movement of the sleeve rod.

[0009] As a further preferred embodiment of this utility model, a second bevel gear is fixedly connected to the second rotating shaft located in the transmission box. The second bevel gear meshes with the first bevel gear. When the two cranks are rotated, the second rotating shaft can be driven to rotate, thereby enabling the second rotating shaft to be driven through the meshing connection between the second bevel gear and the first bevel gear, thus cooperating with the first rotating shaft and the key shaft to drive the sleeve rod to rotate.

[0010] As a further preferred embodiment of this utility model, a plurality of damping blades are fixedly connected to the outer side of the sleeve rod, a keyway is provided inside the sleeve rod, a bearing is fixedly connected to the outer side of the sleeve rod, a plurality of connecting shafts are fixedly connected to the outer side of the outer ring of the bearing, the side of the connecting shaft away from the bearing extends through the sliding groove to the outer side of the connecting column and is fixedly connected to a shielding plate, and the sleeve rod is inserted and connected to the key shaft through the keyway.

[0011] As a further preferred embodiment of this utility model, the inner side of the adjusting ring is fixedly connected to one side of the two connecting shafts. The adjusting ring is threaded with a locking bolt. Through the cooperation between the adjusting ring and the connecting shaft, the sleeve rod can be driven to move vertically on the key shaft by means of the bearing, thereby adjusting the depth of the sleeve rod and the damping blade inserted into the silicone oil in the second column. Then, by controlling the adjustment of the insertion depth, the rotational resistance of the first rotating shaft is adjusted, and the rotational damping of the second rotating shaft is adjusted.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, silicone oil is used as the resistance medium. The damping blades rotate in the silicone oil to generate resistance, avoiding the wear problem of traditional friction adjustment. The adjusting ring drives the sleeve rod to move, changing the depth of the damping blades inserted into the silicone oil, thus realizing multi-level resistance adjustment to adapt to different training needs, making the resistance more stable and reducing maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a sectional view of the connecting column and the second crossbeam of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the sleeve rod and the adjusting ring of this utility model.

[0017] In the diagram: 1. First column; 2. Seat; 3. First crossbeam; 4. Foot pedal; 5. Second column; 6. Hand crank mechanism; 7. Connecting column; 8. Second crossbeam; 9. Transmission box; 10. First shaft; 11. Sleeve rod; 12. Adjusting ring; 13. Second shaft; 14. Hand crank; 15. Partition plate; 16. First bevel gear; 17. Second bevel gear; 18. Slide groove; 19. Key shaft; 20. Damping blade; 21. Keyway; 22. Bearing; 23. Connecting shaft; 24. Baffle plate; 25. Locking bolt. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-3 As shown, the present invention provides an upper limb training device for fitness, including a first column 1, a seat 2 fixedly connected to the first column 1, a first crossbeam 3 fixedly connected to one side of the first column 1, foot pedals 4 fixedly connected to both sides of the first crossbeam 3, a second column 5 fixedly connected to the first crossbeam 3, a hand crank mechanism 6 provided on the second column 5, the hand crank mechanism 6 including a connecting column 7, the connecting column 7 fixedly connected to the second column 5, a second crossbeam 8 fixedly connected to the connecting column 7, a transmission box 9 fixedly connected inside the second crossbeam 8, a first rotating shaft 10 rotatably connected inside the transmission box 9, a sleeve rod 11 movably connected below the first rotating shaft 10, an adjusting ring 12 movably connected to the outside of the connecting column 7, a second rotating shaft 13 rotatably connected inside the transmission box 9 located above the first rotating shaft 10, and crank handles 14 fixedly connected to both sides of the second rotating shaft 13 extending to the outside of the second crossbeam 8.

[0020] like Figure 2 As shown, a partition 15 is fixedly connected inside the second column 5 near the connecting column 7. Silicone oil is stored inside the second column 5 located above the partition 15. The silicone oil with a certain viscosity stored inside the second column 5 can provide resistance to the rotation of the sleeve rod 11, thereby providing damping for the rotation of the first rotating shaft 10. Multiple sliding grooves 18 are opened on the inner side of the connecting column 7.

[0021] like Figures 2-3As shown, a first bevel gear 16 is fixedly connected to the top of the first rotating shaft 10, and a key shaft 19 is fixedly connected to the bottom of the first rotating shaft 10. The key shaft 19 allows the first rotating shaft 10 to rotate, driving the sleeve rod 11 to rotate, and simultaneously providing conditions for axial and radial movement of the sleeve rod 11. A second rotating shaft 13 located in the transmission box 9 is fixedly connected to a second bevel gear 17, which meshes with the first bevel gear 16. When the two cranks 14 are rotated, the second rotating shaft 13 can be driven to rotate, thereby enabling the second rotating shaft 13 to drive the sleeve rod 11 to rotate through the meshing connection between the second bevel gear 17 and the first bevel gear 16. This, in conjunction with the first rotating shaft 10 and the key shaft 19, drives the sleeve rod 11 to rotate. Multiple damping blades 20 are fixedly connected to the outside of the sleeve rod 11, and a keyway 21 is provided inside the sleeve rod 11. A bearing 22 is fixedly connected to the outer side of the 11. Multiple connecting shafts 23 are fixedly connected to the outer ring of the bearing 22. The side of the connecting shaft 23 away from the bearing 22 extends through the slide groove 18 to the outside of the connecting column 7 and is fixedly connected to the shielding plate 24. The sleeve rod 11 is inserted and connected to the key shaft 19 through the keyway 21. The inner side of the adjusting ring 12 is fixedly connected to one side of the two connecting shafts 23. The adjusting ring 12 is threaded with a locking bolt 25. Through the cooperation between the adjusting ring 12 and the connecting shaft 23, the sleeve rod 11 can be driven to move vertically on the key shaft 19 with the help of the bearing 22, thereby adjusting the depth of the sleeve rod 11 and the damping blade 20 inserted into the silicone oil in the second column 5. Then, by controlling the adjustment of the insertion depth, the rotational resistance of the first rotating shaft 10 is adjusted, and the rotational damping of the second rotating shaft 13 is adjusted.

[0022] It should be noted that this utility model is an upper limb training device for fitness. When using it, the user first sits on the seat 2 with both feet placed on the footrest 4 or the ground. Then, the user holds the crank handle 14 with both hands and turns the crank handle 14. When the crank handle 14 is turned, it drives the second rotating shaft 13 to rotate. The second bevel gear 17 on the second rotating shaft 13 rotates with it. Since the second bevel gear 17 meshes with the first bevel gear 16, the first bevel gear 16 rotates accordingly and drives the first rotating shaft 10 to rotate. The key shaft 1 at the bottom of the first rotating shaft 10... 9. The key shaft 19 drives the sleeve rod 11 to rotate through the key groove 21. The damping blade 20 on the outside of the sleeve rod 11 rotates together with the sleeve rod 11 in the silicone oil in the second column 5. Since the silicone oil has a certain viscosity, the damping blade 20 is subjected to the viscous resistance of the silicone oil when it rotates. This resistance is transmitted to the crank handle 14 through the sleeve rod 11, key shaft 19, first rotating shaft 10, first bevel gear 16, second bevel gear 17 and second rotating shaft 13. The user needs to overcome this resistance to complete the rotation, thereby realizing upper limb training.

[0023] To adjust the resistance, first loosen the locking bolt 25 on the adjusting ring 12, and move the adjusting ring 12 up and down. The adjusting ring 12 drives the connecting shaft 23 to move along the slide groove 18. The connecting shaft 23 drives the sleeve rod 11 to move vertically along the key shaft 19 through the bearing 22, thereby changing the depth of the damping blade 20 inserted into the silicone oil. The deeper the insertion, the larger the contact area between the damping blade 20 and the silicone oil, and the greater the resistance. The shallower the insertion, the smaller the resistance. After adjusting to the appropriate resistance, tighten the locking bolt 25 to fix the position of the adjusting ring 12, and then training of the corresponding intensity can be carried out.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fitness upper limb training device, characterized in that: The system includes a first column (1), a seat (2) fixedly connected to the first column (1), a first crossbeam (3) fixedly connected to one side of the first column (1), footrests (4) fixedly connected to both sides of the first crossbeam (3), a second column (5) fixedly connected to the first crossbeam (3), a hand crank mechanism (6) provided on the second column (5), the hand crank mechanism (6) including a connecting column (7), the connecting column (7) fixedly connected to the second column (5), and a first... Two crossbeams (8), a transmission box (9) is fixedly connected inside the second crossbeam (8), a first rotating shaft (10) is rotatably connected inside the transmission box (9), a sleeve rod (11) is movably connected below the first rotating shaft (10), an adjusting ring (12) is movably connected to the outside of the connecting column (7), a second rotating shaft (13) is rotatably connected inside the transmission box (9) located above the first rotating shaft (10), and a crank handle (14) is fixedly connected to both sides of the second rotating shaft (13) to the outside of the second crossbeam (8).

2. The upper limb training device for fitness according to claim 1, characterized in that: A partition (15) is fixedly connected inside the second column (5) near the connecting column (7). Silicone oil is stored inside the second column (5) located above the partition (15). Multiple sliding grooves (18) are opened inside the connecting column (7).

3. The upper body exercise device of claim 1, wherein: The first rotating shaft (10) is fixedly connected to the top of the first bevel gear (16) and the first rotating shaft (10) is fixedly connected to the bottom of the first rotating shaft (10) with a key shaft (19).

4. The upper limb training device for fitness according to claim 1, characterized in that: The second shaft (13) located inside the transmission box (9) is fixedly connected to the second bevel gear (17), and the second bevel gear (17) meshes with the first bevel gear (16).

5. The upper limb training device for fitness according to claim 3, characterized in that: Multiple damping blades (20) are fixedly connected to the outside of the sleeve (11). A keyway (21) is provided inside the sleeve (11). A bearing (22) is fixedly connected to the outside of the sleeve (11). Multiple connecting shafts (23) are fixedly connected to the outer ring of the bearing (22). The side of the connecting shaft (23) away from the bearing (22) extends through the slide groove (18) to the outside of the connecting column (7) and is fixedly connected to a shielding plate (24). The sleeve (11) is inserted and connected to the key shaft (19) through the keyway (21).

6. The upper limb training device for fitness according to claim 5, characterized in that: The inner side of the adjusting ring (12) is fixedly connected to one side of the two connecting shafts (23), and the adjusting ring (12) is threaded with a locking bolt (25).

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