Commercial counterweight structure based on magnetic powder electromagnetic force

Abstract

The utility model discloses a commercial counterweight structure based on magnetic powder electromagnetic force. The commercial counterweight structure comprises a mounting shell, a first baffle plate and a second baffle plate are welded on the mounting shell, a magnetic control structure is mounted on the mounting shell, and three roller shafts are fixedly mounted on the inner wall of the mounting shell; the mode that an original counterweight piece generates gravity by means of self weight is changed into an electric control magnetic force acting mode, pulling resistance is controlled by means of the characteristics of magnetic powder in a magnetic field, noise and vibration are avoided in the using process, the counterweight device can be suitable for different floors, a counterweight motion organizational structure composed of an original guide rod, a selection rod, a plug pin and the like is reduced, and cost is reduced. An original counterweight piece outer cover is reduced, the effects of reducing the size and reducing the overall weight are achieved, therefore, the transportation cost is reduced, the exercise resistance can be adjusted only through a magnetic powder tension controller in magnetic control, operation is convenient and easy, the power of the magnetic powder controller is small, the electric energy using cost is low, the manufacturing cost is far lower than that of a steel counterweight piece, and steel can be greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a commercial counterweight structure based on magnetic powder electromagnetic force. Background Technique

[0002] At present, steel plates are widely used as counterweights for traditional multi-functional trainers internationally. The conventional weights are: 150LB - 200LB or 70KG - 100KG specifications. For example, for a pulley counterweight tensioner, the weight of the counterweight block can be freely adjusted for tensile training.

[0003] For traditional fitness tensile equipment, since counterweights need to be installed to adjust the tensile force during exercise, due to the heavy weight of the counterweights, the cost of transporting the counterweights is very high, and it is very difficult to carry. When installing, guide rods, selection rods, and pins need to be equipped. Each time the user uses it, they must leave the seat and insert the pin into the weight hole position they choose. And according to fitness safety regulations, the counterweight plates must be equipped with a housing, which is inconvenient to use and operate. During use, relatively large impact sounds and vibrations of the equipment on the ground will also be generated. Such products are normally used in the first-floor space and cannot be used in high-rise buildings. Therefore, a commercial counterweight structure based on magnetic powder electromagnetic force is needed to meet people's needs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a commercial counterweight structure based on magnetic powder electromagnetic force to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A commercial counterweight structure based on magnetic powder electromagnetic force, including an installation housing; a first baffle and a second baffle are welded on the installation housing, a magnetic force control structure is installed on the installation housing, three roller shafts are fixedly installed on the inner wall of the installation housing, an elastic reset structure is installed on the three roller shafts, and a stretching exercise structure is installed on the inner wall of the installation housing;

[0006] The magnetic force control structure includes a power box, the power box is connected to the inner wall of the installation housing, a magnetic powder controller is connected to the inner wall of the power box, a magnetic powder controller intermediate core shaft is connected to the magnetic powder controller, a one-way clutch is connected to the magnetic powder controller intermediate core shaft, a sprocket is fixedly installed on the one-way clutch, a battery pack is fixedly installed on the inner wall of the power box, the magnetic powder controller and the battery pack are both electrically connected with connection wires, and one ends of the two connection wires both penetrate through the power box and are electrically connected to the same magnetic powder tension controller;

[0007] The elastic reset structure includes a first roller, a second roller and a third roller. The first roller, the second roller and the third roller are respectively rotatably installed on three roller shafts. An elastic rope fixing frame is fixedly installed on the inner wall of the installation shell. The elastic rope fixing frame is in an L-shaped plate structure. An elastic connecting rope is fixedly installed on the elastic rope fixing frame. The elastic connecting rope is double-stranded. The elastic connecting rope passes through the first roller, the second roller and the third roller in a ring shape. The elastic connecting rope is in contact with the first roller, the second roller and the third roller. A chain is connected to the elastic connecting rope. One end of the chain penetrates through the power box and is drivingly connected to a sprocket.

[0008] The stretching exercise structure includes two pulley frames. The two pulley frames are respectively fixedly installed on the installation shell and the power box. A first pulley and a second pulley are respectively rotatably installed on the two pulley frames. One end of a steel wire rope is connected to the chain. The other end of the steel wire rope passes through the first pulley and the second pulley respectively and is fixedly connected to a large ball end. The steel wire rope is in contact with the first pulley and the second pulley. A snap hook is movably connected to the large ball end. A steel chain is movably connected to the snap hook. An external steel wire rope joint is movably connected to the steel chain.

[0009] Preferably, a movable hole is formed in the first baffle. The movable hole corresponds to the external steel wire rope joint. Two installation screw holes are formed in the first baffle. Two housing positioning pins are fixedly installed on one side of the second baffle.

[0010] Preferably, one end of a plurality of controller bolts is movably installed on the power box. The other end of the controller bolt penetrates through the power box and is threadedly installed on the magnetic particle controller.

[0011] Preferably, a plurality of power box bolts are movably installed on both sides of the installation shell. One end of the power box bolt penetrates through the installation shell and is threadedly installed on the power box.

[0012] Preferably, a chain elastic rope connecting piece is connected between the elastic connecting rope and the chain. A circlip is movably sleeved on the roller shaft.

[0013] Preferably, pulley installation bolts are threadedly installed on both of the two pulley frames. The first pulley and the second pulley are respectively movably connected to the two pulley installation bolts. Washers are movably sleeved on both of the two pulley installation bolts.

[0014] Preferably, a steel wire rope limiting frame and a support rod are fixedly installed on one side of the power box. The support rod is in contact with the steel wire rope limiting frame. The large ball end is in contact with the steel wire rope limiting frame.

[0015] Preferably, a transition connecting piece is connected to the chain. One end of the steel wire rope is connected to a steel wire rope end. An installation bolt is connected between the transition connecting piece and the steel wire rope end.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) In the present utility model, the mode of generating gravity by the original counterweight sheet relying on its own weight is changed to an electronically controlled electromagnetic force action mode. The characteristics of magnetic powder in a magnetic field are used to control the resistance during movement. During use, there is no noise and no vibration, and it can be used on any floor. The weight movement organizational structure composed of the original guide rod, selector rod, bolt, etc. is reduced, and the outer cover of the original counterweight sheet is reduced, achieving the effects of reducing the volume and the overall weight, thereby reducing the transportation cost. The magnetic force control can adjust the exercise resistance only through the magnetic powder tension controller, and the operation is convenient and simple. Moreover, the power of the magnetic powder controller is small, the power consumption cost is low, and the manufacturing cost is much lower than that of the steel counterweight sheet, which can greatly save steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a three-dimensional structure schematic diagram of a commercial counterweight structure based on magnetic powder electromagnetic force proposed by the present utility model;

[0019] Figure 2 FIG. is a side view structure schematic diagram of a commercial counterweight structure based on magnetic powder electromagnetic force proposed by the present utility model;

[0020] Figure 3 FIG. is a chain connection structure schematic diagram of a commercial counterweight structure based on magnetic powder electromagnetic force proposed by the present utility model;

[0021] Figure 4 FIG. is a structure schematic diagram inside the power box of a commercial counterweight structure based on magnetic powder electromagnetic force proposed by the present utility model.

[0022] In the figure: 1, installation housing; 2, first baffle; 21, installation screw hole; 22, movable hole; 3, second baffle; 31, housing positioning pin; 4, power box; 41, magnetic powder controller; 42, middle core shaft of magnetic powder controller; 43, one-way clutch; 44, sprocket; 45, battery pack; 46, connecting wire; 47, magnetic powder tension controller; 48, controller bolt; 49, power box bolt; 5, roller shaft; 51, first roller; 52, second roller; 53, third roller; 54, elastic rope fixing bracket; 55, elastic connecting rope; 56, chain; 57, snap ring; 6, pulley bracket; 61, first pulley; 62, second pulley; 63, steel wire rope; 64, large ball end; 65, shackle; 66, iron chain; 67, external steel wire rope joint; 68, pulley installation bolt; 69, steel wire rope limit bracket; 610, support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment: Please refer to Figures 1-4 , the present invention provides a technical solution: a commercial counterweight structure based on magnetic powder electromagnetic force, including an installation housing 1; a first baffle 2 and a second baffle 3 are welded on the installation housing 1, a magnetic force control structure is installed on the installation housing 1, three roller shafts 5 are fixedly installed on the inner wall of the installation housing 1, an elastic reset structure is installed on the three roller shafts 5, and a stretching exercise structure is installed on the inner wall of the installation housing 1;

[0025] The magnetic force control structure includes a power box 4, the power box 4 is connected to the inner wall of the installation housing 1, a magnetic powder controller 41 is connected to the inner wall of the power box 4, a magnetic powder controller intermediate core shaft 42 is connected to the magnetic powder controller 41, a one-way clutch 43 is connected to the magnetic powder controller intermediate core shaft 42, a sprocket 44 is fixedly installed on the one-way clutch 43, a battery pack 45 is fixedly installed on the inner wall of the power box 4, a connecting wire 46 is electrically connected to both the magnetic powder controller 41 and the battery pack 45, and one end of each of the two connecting wires 46 penetrates through the power box 4 and is electrically connected to the same magnetic powder tension controller 47;

[0026] The elastic reset structure includes a first roller 51, a second roller 52 and a third roller 53. The first roller 51, the second roller 52 and the third roller 53 are respectively rotatably installed on the three roller shafts 5. An elastic rope fixing frame 54 is fixedly installed on the inner wall of the installation housing 1. The elastic rope fixing frame 54 is in an L-shaped plate structure. An elastic connecting rope 55 is fixedly installed on the elastic rope fixing frame 54. The elastic connecting rope 55 is double-stranded. The elastic connecting rope 55 passes through the first roller 51, the second roller 52 and the third roller 53 in a ring shape. The elastic connecting rope 55 is in contact with the first roller 51, the second roller 52 and the third roller 53. A chain 56 is connected to the elastic connecting rope 55. One end of the chain 56 penetrates through the power box 4 and is drivingly connected to the sprocket 44;

[0027] The stretching exercise structure includes two pulley brackets 6, which are respectively and fixedly installed on the installation housing 1 and the power box 4. A first pulley 61 and a second pulley 62 are respectively rotatably installed on the two pulley brackets 6. One end of a steel wire rope 63 is connected to a chain 56. The other end of the steel wire rope 63 respectively passes through the first pulley 61 and the second pulley 62 and is fixedly connected to a large ball end 64. The steel wire rope 63 is in contact with the first pulley 61 and the second pulley 62. A snap hook 65 is movably connected to the large ball end 64. A steel chain 66 is movably connected to the snap hook 65. An external steel wire rope joint 67 is movably connected to the steel chain 66. When the external steel wire rope joint 67 is pulled, the sprocket 44 will rotate and stretch the elastic connecting rope 55. The sprocket 44 will then drive the intermediate core shaft 42 of the magnetic powder controller to rotate through the one-way clutch 43. The magnetic powder controller 41 mainly uses the characteristics of magnetic powder in a magnetic field to generate and control the resistance of the intermediate core shaft 42 of the magnetic powder controller, so that there will be a certain resistance when the external steel wire rope joint 67 is pulled. The battery pack 45 and the connecting wire 46 can provide power for the magnetic powder tension controller 47 and the magnetic powder controller 41. The magnetic powder tension controller 47 can be used to control the magnetic field intensity of the magnetic powder controller 41 and change the resistance of the magnetic field to the rotating shaft, so as to adjust according to different exercise requirements. When the external steel wire rope is released, the elastic connecting rope 55 will pull the external steel wire rope joint 67 to move back to its original position under the action of its own elasticity, so that the external steel wire rope joint 67 will not be affected by the resistance of the intermediate core shaft 42 of the magnetic powder controller due to the one-way force relationship of the one-way clutch during the process of retracting the external steel wire rope joint 67 and cannot be retracted. By repeatedly pulling the external steel wire rope, the effect of exercising the arm strength can be achieved.

[0028] Further, a movable hole 22 is provided on the first baffle 2. The movable hole 22 corresponds to the external steel wire rope joint 67. Two mounting screw holes 21 are provided on the first baffle 2. Two housing positioning pins 31 are fixedly installed on one side of the second baffle 3. The external steel wire rope connected to the external steel wire rope joint 67 can pass through the movable hole 22 during the stretching process. Both the housing positioning pins 31 and the mounting screw holes 21 can be used to connect external devices or to fix the position of the installation housing 1.

[0029] Further, one end of a plurality of controller bolts 48 is movably installed on the power box 4. The other end of the controller bolts 48 penetrates through the power box 4 and is threadedly installed on the magnetic powder controller 41. Using the controller bolts 48 to fix the magnetic powder controller 41 on the power box 4 can prevent the power box 4 from shifting or loosening during use.

[0030] Further, a plurality of power box bolts 49 are movably installed on both sides of the installation housing 1. One end of the power box bolts 49 penetrates through the installation housing 1 and is threadedly installed on the power box 4. By rotating the power box bolts 49, the disassembly and assembly of the power box 4 can be completed, which is convenient for maintenance.

[0031] Furthermore, a chain elastic cord connector is connected between the elastic connection cord 55 and the chain 56. A snap ring 57 is movably sleeved on the roller shaft 5, and the snap ring 57 is used to prevent the first roller 51, the second roller 52 and the third roller 53 from falling off the roller shaft 5.

[0032] Furthermore, pulley mounting bolts 68 are threadedly installed on both of the two pulley brackets 6. The first pulley 61 and the second pulley 62 are respectively movably connected to the two pulley mounting bolts 68. Washers are movably sleeved on the two pulley mounting bolts 68. The pulley mounting bolts 68 can provide a rotation fulcrum for the first pulley 61 and the second pulley 62, and at the same time prevent them from falling off the pulley bracket 6.

[0033] Furthermore, a wire rope limiting frame 69 and a support rod 610 are fixedly installed on one side of the power box 4. The support rod 610 is in contact with the wire rope limiting frame 69, and the large ball end 64 is in contact with the wire rope limiting frame 69. When the chain 56 is reset, it will drive the large ball end 64 to contact the wire rope limiting frame 69, preventing the chain 56 from being pulled into the power box 4 by the elasticity of the elastic connection cord 55 and disengaging from the sprocket 44, and limiting the chain 56. By setting the support rod 610, it can provide support for the wire rope limiting frame 69 and prevent the wire rope limiting frame 69 from being bent under the impact when the large ball end 64 is reset.

[0034] Furthermore, a transition connecting piece is connected to the chain 56. One end of the wire rope 63 is connected with a wire rope end. An installation bolt is connected between the transition connecting piece and the wire rope end.

[0035] The working principle is as follows: The external wire rope joint 67 can be used to connect the external wire rope. When pulling the external wire rope joint 67, the external wire rope joint 67 will drive the large ball end 64 to move through the iron chain 66 and the gourd buckle 65 when being pulled, so that the large ball end 64 is separated from the contact with the wire rope limit frame 69. Then the large ball end 64 will pull one end of the wire rope 63 to move, and the other end of the wire rope 63 will pull the chain 56 to move. The chain 56 will drive the sprocket 44 to rotate through the transmission cooperation with the sprocket 44. The sprocket 44 will then drive the intermediate core shaft 42 of the magnetic powder controller to rotate through the one-way clutch 43. The magnetic powder controller 41 mainly uses the characteristics of magnetic powder in the magnetic field to generate and control the resistance of the intermediate core shaft 42 of the magnetic powder controller, so that there will be a certain resistance when the chain 56 is pulled. When the wire rope 63 moves, it will drive the first pulley 61 and the second pulley 62 to rotate on the corresponding pulley mounting bolts 68, thereby reducing the friction generated when the wire rope 63 moves, so that there is no loss in the transmission when pulling the external wire rope joint 67. The battery pack 45 and the connecting wire 46 can provide the power for the magnetic powder tension controller 47 and the magnetic powder controller 41. The magnetic powder tension controller 47 can be used to control the magnetic field intensity of the magnetic powder controller 41 and change the resistance of the magnetic field to the rotating shaft, so as to adjust according to different exercise requirements. The continuously pulled chain 56 will further stretch the elastic connecting rope 55, and the elastic connecting rope 55 will drive the first roller 51, the second roller 52 and the third roller 53 to rotate on the corresponding roller shafts 5, reducing the friction of the elastic connecting rope 55. When the external wire rope is released, the elastic connecting rope 55 will pull one end of the chain 56 to move it back under the action of its own elasticity. The chain 56 will then pull the wire rope 63 to drive the external wire rope joint 67 to move back. Under the action of the own elasticity of the elastic connecting rope 55, during the process of recovering the external wire rope joint 67, due to the one-way action force relationship of the one-way clutch, it will not be affected by the resistance of the intermediate core shaft 42 of the magnetic powder controller and cannot be recovered. By reciprocally pulling the external wire rope, the effect of exercising the arm strength can be achieved.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A commercial counterweight structure based on magnetic powder electromagnetic force, comprising an installation housing (1); characterized in that: A first baffle (2) and a second baffle (3) are welded on the installation housing (1). A magnetic force control structure is installed on the installation housing (1). Three roller shafts (5) are fixedly installed on the inner wall of the installation housing (1). An elastic reset structure is installed on the three roller shafts (5). A stretching exercise structure is installed on the inner wall of the installation housing (1). The magnetic force control structure includes a power box (4). The power box (4) is connected to the inner wall of the installation housing (1). A magnetic powder controller (41) is connected to the inner wall of the power box (4). A magnetic powder controller intermediate core shaft (42) is connected to the magnetic powder controller (41). A one-way clutch (43) is connected to the magnetic powder controller intermediate core shaft (42). A sprocket (44) is fixedly installed on the one-way clutch (43). A battery pack (45) is fixedly installed on the inner wall of the power box (4). Connecting wires (46) are electrically connected to both the magnetic powder controller (41) and the battery pack (45). One ends of the two connecting wires (46) penetrate through the power box (4) and are electrically connected to the same magnetic powder tension controller (47). The elastic reset structure includes a first roller (51), a second roller (52) and a third roller (53). The first roller (51), the second roller (52) and the third roller (53) are respectively rotatably installed on the three roller shafts (5). An elastic rope fixing bracket (54) is fixedly installed on the inner wall of the installation housing (1). The elastic rope fixing bracket (54) is in an L-shaped plate structure. An elastic connecting rope (55) is fixedly installed on the elastic rope fixing bracket (54). The elastic connecting rope (55) is double-stranded. The elastic connecting rope (55) passes through the first roller (51), the second roller (52) and the third roller (53) in a loop. The elastic connecting rope (55) is in contact with the first roller (51), the second roller (52) and the third roller (53). A chain (56) is connected to the elastic connecting rope (55). One end of the chain (56) penetrates through the power box (4) and is drivingly connected to the sprocket (44). The stretching exercise structure includes two pulley brackets (6). The two pulley brackets (6) are respectively fixedly installed on the installation housing (1) and the power box (4). A first pulley (61) and a second pulley (62) are respectively rotatably installed on the two pulley brackets (6). One end of a steel wire rope (63) is connected to the chain (56). The other end of the steel wire rope (63) passes through the first pulley (61) and the second pulley (62) respectively and is fixedly connected to a large ball end (64). The steel wire rope (63) is in contact with the first pulley (61) and the second pulley (62). A snap hook (65) is movably connected to the large ball end (64). A steel chain (66) is movably connected to the snap hook (65). An external steel wire rope joint (67) is movably connected to the steel chain (66).

2. The commercial counterweight structure based on magnetic powder electromagnetic force according to claim 1, wherein: An activity hole (22) is formed in the first baffle (2). The activity hole (22) corresponds to the external steel wire rope joint (67). Two installation screw holes (21) are formed in the first baffle (2). Two housing positioning pins (31) are fixedly installed on one side of the second baffle (3).

3. A commercial counterweight structure based on magnetic powder electromagnetic force according to claim 1, characterized in that: One end of a plurality of controller bolts (48) is movably installed on the power box (4), and the other end of the controller bolt (48) penetrates through the power box (4) and is threadedly installed on the magnetic particle controller (41).

4. A commercial counterweight structure based on magnetic powder electromagnetic force according to claim 1, characterized in that: A plurality of power box bolts (49) are movably installed on both sides of the installation housing (1), and one end of the power box bolt (49) penetrates through the installation housing (1) and is threadedly installed on the power box (4).

5. A commercial counterweight structure based on magnetic powder electromagnetic force according to claim 1, characterized in that: A chain elastic rope connecting piece is connected between the elastic connecting rope (55) and the chain (56), and a snap ring (57) is movably sleeved on the roller shaft (5).

6. A commercial counterweight structure based on magnetic powder electromagnetic force according to claim 1, characterized in that: Pulley mounting bolts (68) are threadedly installed on both of the two pulley brackets (6), the first pulley (61) and the second pulley (62) are respectively movably connected to the two pulley mounting bolts (68), and gaskets are movably sleeved on the two pulley mounting bolts (68).

7. A commercial counterweight structure based on magnetic powder electromagnetic force according to claim 1, characterized in that: A steel wire rope limiting frame (69) and a support rod (610) are fixedly installed on one side of the power box (4), the support rod (610) is in contact with the steel wire rope limiting frame (69), and the large ball end (64) is in contact with the steel wire rope limiting frame (69).

8. A commercial counterweight structure based on magnetic powder electromagnetic force according to claim 1, characterized in that: A transition connecting piece is connected to the chain (56), one end of the steel wire rope (63) is connected with a steel wire rope end, and an installation bolt is connected between the transition connecting piece and the steel wire rope end.

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