A large-stroke brake fine adjustment magnetic control mechanism

Abstract

This invention belongs to the field of fitness equipment technology and provides a large-stroke magnetic control mechanism with brake and fine adjustment, including a frame, an aluminum disc fixed shaft system, a main pull rod mechanism, a resistance-adjustable brake assembly, an aluminum disc fixed shaft system mounting bearing, a main pull rod mounting bearing, a tension spring, and a traction rope. The aluminum disc fixed shaft system is mounted on one side of the frame, and the main pull rod mechanism is mounted on the shaft end of the aluminum disc fixed shaft system. The main pull rod mechanism is equipped with a resistance-adjustable brake assembly, which in turn is equipped with a tension spring and a traction rope. This mechanism features a traction rope that can be rigidly connected to the human body, a large adjustable range of traction rope stroke, and when the fixed end of the traction rope is fixed to the traction pulley, the stroke can be reduced, resulting in a wide stroke design range. Resistance adjustment is more precise, and a predetermined resistance curve can be achieved through the design of the cam shape.

Description

Technical Field

[0001] This invention belongs to the field of fitness equipment technology, and in particular relates to a long-stroke magnetic control mechanism with brake and fine adjustment. Background Technology

[0002] A rope climbing machine is a fitness device that allows users to perform continuous rope climbing movements through a rotating rope. During use, a magnetic control mechanism is required to control the resistance of the moving parts connected to the aluminum disc by adjusting the area of ​​the magnetic field lines cut by the rotating aluminum disc.

[0003] Existing magnetic control mechanisms, such as the invention patent with application number CN112891813A, provide a rope climbing machine: the resistance adjustment frame rotates around a certain turning point. The disadvantage is that when the elastic rope is pulled at a constant speed, the coverage area of ​​the magnet on the aluminum disc changes unevenly, resulting in uneven resistance.

[0004] CN216497234U: It uses a parallelogram mechanism to make the magnet cut into the aluminum disc at a uniform speed. However, it has a drawback: the elastic rope at point 3 is rigidly connected to the human body. In order to change it to a flexible connection, a tension spring is added in the middle. However, by cooperating with the tension spring and the return gravity column at point 61 or a return tension spring with the same function as the gravity column at point 61, it is not possible to achieve precise and uniform control of the parallelogram. This mechanism can only partially improve the mechanism of "CN112891813A", but it is not thorough and cannot achieve precise control.

[0005] Therefore, how to provide a large stroke range to accurately control the resistance generated by the magnetic control mechanism is a technical problem that needs to be solved. Summary of the Invention

[0006] To address at least one of the technical problems in the background art, the first aspect of the present invention provides a large-stroke magnetic control mechanism with brake fine adjustment. This mechanism has a wide adjustable stroke range for the traction rope. When the fixed end of the traction rope is fixed to the traction pulley, the stroke can be reduced, and the stroke design range is wide. The resistance adjustment is more precise, and a predetermined resistance curve can be achieved through the design of the shape of the fixed cam limit plate of the frame.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a long-stroke magnetic control mechanism with brake fine adjustment, comprising a frame, an aluminum disc fixed shaft system, a main tie rod mechanism, a resistance-adjusting brake assembly, an aluminum disc fixed shaft system mounting bearing, a main tie rod mounting bearing, a tension spring, and a traction rope; the aluminum disc fixed shaft system is installed on one side of the frame, the main tie rod mechanism is installed at the shaft end of the aluminum disc fixed shaft system, the resistance-adjusting brake assembly is provided on the main tie rod mechanism, and the resistance-adjusting brake assembly is provided with a tension spring and a traction rope.

[0008] Furthermore, the frame includes a rectangular frame and an inclined frame. The inclined frame is provided on the bottom surface of the rectangular frame. A frame fixing bearing sleeve is installed on the outer side of the inclined frame. A frame fixing cam limiting plate is provided on the inner side of the inclined frame. The frame fixing cam limiting plate is used to limit the trajectory bearing of the resistance adjustment brake assembly.

[0009] Furthermore, the frame fixing cam limiting plate includes an arc plate with multiple weight reduction holes on its side. The outer arc surface of the arc plate has two L-shaped plates, which are located at the two ends of the outer arc surface of the arc plate. The L-shaped plates are fitted with a trajectory bearing, which can move between the two L-shaped plates along the outer arc surface of the arc plate.

[0010] Furthermore, a frame fixed pulley is provided at one end of the top surface of the rectangular frame, and a frame traction rope fixing seat is provided at a set distance from the frame fixed pulley on the lower surface of the rectangular frame. One end of the traction rope is fixed at the frame traction rope fixing seat, passes around the traction pulley of the main tie rod assembly, and then passes through the frame fixed pulley.

[0011] Furthermore, the main tie rod assembly includes a main tie bend tube, a main tie bend sleeve, a fixed rotating shaft, an end welded shaft, a traction pulley, and a counterweight. One end of the main tie bend tube is equipped with a main tie bend sleeve, which is connected to the end of the flange welded shaft of the aluminum disc fixed shaft system via a main tie rod mounting bearing. The other end of the main tie tube is equipped with an end welded shaft, one end of which is equipped with a counterweight, and the other end of which is equipped with a traction pulley. Two fixed rotating shafts are located at a set distance from the end welded shafts on the main tie bend tube, with a certain gap between the two fixed rotating shafts. The fixed rotating shafts are used to install a resistance adjustment brake assembly.

[0012] Furthermore, the adjustable braking assembly includes a magnet assembly fixing frame, a connecting U-shaped frame, a swing frame pivot pin, a swing frame fixing nut, a swing frame locking nut, a track bearing, and a bearing; one side of the magnet assembly fixing frame is connected to the aluminum disc via a tension spring, and the end of the magnet assembly fixing frame is connected to the connecting U-shaped frame. The connecting U-shaped frame has a swing frame on its side, and the other end of the swing frame is connected to a fixed rotating shaft. The fixed rotating shaft is installed on the main bending tube; there are two swing frames, each corresponding to one of the two fixed rotating shafts.

[0013] Furthermore, the swing frame includes a swing frame main board and a swing frame bearing sleeve. One end of the swing frame main board is mounted on the swing frame pivot pin through the swing frame bearing sleeve. The trajectory bearing is set on the swing frame pivot pin and is used to cooperate with the frame fixing cam limit plate for installation. The swing frame pivot pin is fixedly installed on the connecting U-shaped frame using the swing frame fixing nut and the swing frame locking nut.

[0014] Furthermore, the aluminum disc fixing shaft system includes an aluminum disc, a flange welded shaft, and a power input pulley. The aluminum disc is mounted on the frame fixing bearing sleeve via the aluminum disc fixing shaft system mounting bearing. One end of the flange welded shaft is connected to the rotation center of the aluminum disc, and the other end of the flange welded shaft is connected to the power input pulley. They are connected as a whole through a connector, and the power input pulley drives the aluminum disc to rotate in the direction of the arrow on the surface of the aluminum disc.

[0015] The beneficial effects of this invention are:

[0016] This invention provides a large-stroke magnetic control mechanism with brake and fine adjustment. This mechanism has the characteristic that the traction rope can be rigidly connected to the human body without the need for an additional buffer spring in the middle; the traction rope stroke has a large adjustable range. When the fixed end of the traction rope is fixed to the traction pulley, the stroke can be reduced, and the stroke design range is wide; the resistance adjustment is more precise, and a predetermined resistance curve can be achieved through the design of the cam shape.

[0017] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0019] Figure 1 This is a front structural schematic diagram of the long-stroke magnetic control mechanism with brake fine adjustment of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear structure of the long-stroke magnetic control mechanism with brake fine adjustment of the present invention;

[0021] Figure 3 This is a top cross-sectional view of the long-stroke magnetic control mechanism with brake fine adjustment of the present invention;

[0022] Figure 4 This is a schematic diagram of the bottom cross-section structure of the long-stroke magnetic control mechanism with brake fine adjustment of the present invention;

[0023] Figure 5 This is a front view of the large-stroke magnetic control mechanism with brake fine-tuning in the initial state of the present invention.

[0024] Figure 6 This is a schematic diagram of the rear structure of the long-stroke magnetic control mechanism with brake fine adjustment in the initial state of the present invention;

[0025] Figure 7 This is a front structural diagram of the large-stroke magnetic control mechanism with brake fine-tuning in the intermediate state of the present invention.

[0026] Figure 8 This is a schematic diagram of the back structure of the long-stroke magnetic control mechanism with brake fine adjustment in the middle state of the present invention;

[0027] Figure 9 This is a front structural diagram of the long-stroke magnetic control mechanism with brake fine-tuning in the final braking state of the present invention;

[0028] Figure 10 This is a schematic diagram of the rear structure of the long-stroke magnetic control mechanism with brake fine adjustment in the final braking state of the present invention;

[0029] The components include: 1. Frame; 1.1 Frame fixed pulley; 1.2 Frame traction rope fixing seat; 1.3 Frame fixed bearing sleeve; 1.4 Frame fixed cam limit plate; 2. Aluminum disc fixed shaft system; 2.1 Aluminum disc; 2.2 Flange welded shaft; 2.3 Power input pulley; 3. Main tie rod assembly; 3.1 Main tie bending pipe; 3.2 Main tie bending sleeve; 3.3 Fixed rotating shaft; 3.4 End welded shaft; 3.5 Traction moving pulley; 3.6 Counterweight; 4. 4.1 Adjustable brake assembly; 4.2 Magnet assembly fixing frame; 4.3 Connecting U-shaped frame; 4.3 Swing frame; 4.3.1 Swing frame main board; 4.3.2 Swing frame bearing sleeve; 4.4 Swing frame pivot pin; 4.5 Swing frame fixing nut; 4.6 Swing frame locking nut; 4.7 Track bearing; 5 Aluminum disc fixing shaft system mounting bearing; 6 Main tie rod mounting bearing; 7 Tension spring; 8 Traction rope; 8.1 Traction rope fixing end; 8.2 Traction rope traction end. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] In this invention, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only to facilitate the description of the structural relationships of the various components or elements of this invention and do not specifically refer to any component or element in this invention. They should not be construed as limiting the invention.

[0034] In this invention, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of these terms in this invention based on the specific circumstances, and they should not be construed as limitations on the invention.

[0035] like Figures 1-10 As shown, this embodiment provides a long-stroke magnetic control mechanism with brake fine adjustment, including a frame 1, an aluminum disc 2.1 fixed shaft system 2, a main tie rod mechanism, a resistance-adjusting brake assembly 4, an aluminum disc fixed shaft system mounting bearing 55, a main tie rod mounting bearing 6, a tension spring 7, and a traction rope 8; the aluminum disc 2.1 fixed shaft system 2 is installed on one side of the frame 1, and the main tie rod mechanism is installed on the shaft end of the aluminum disc 2.1 fixed shaft system 2. The main tie rod mechanism is provided with a resistance-adjusting brake assembly 4, and the resistance-adjusting brake assembly 4 is provided with a tension spring 7 and a traction rope 8.

[0036] The frame 1 includes a rectangular frame and an inclined frame. The inclined frame is located on the bottom surface of the rectangular frame. A frame fixing bearing sleeve 1.3 is installed on the outer side of the inclined frame, and a frame fixing cam limiting plate 1.4 is located on the inner side of the inclined frame. The frame fixing cam limiting plate 1.4 is used to limit the trajectory bearing 4.7 of the resistance adjustment brake assembly 4. The frame fixing cam limiting plate 1.4 includes an arc plate with multiple weight reduction holes on its side. Two L-shaped plates are located on the outer arc surface of the arc plate, respectively at both ends of the outer arc surface of the arc plate. The openings are set opposite each other, and the sides of the two L-shaped plates are arc-shaped. The L-shaped plates are fitted with the track bearing 4.7. The track bearing 4.7 can move between the two L-shaped plates along the outer arc surface of the arc plate. The design of the frame fixed cam limit plate 1.4 makes the resistance adjustment more precise. The predetermined resistance curve can be achieved through the design of the cam shape. The main pull rod can be moved by the traction rope traction end 8.2 and the traction pulley 3.5 can be used to drive the main pull rod part to move, so that the resistance adjustment brake part can move towards the aluminum disc 2.1 along a specific trajectory and effectively brake in the final braking state.

[0037] A fixed pulley 1.1 is installed at one end of the top surface of the rectangular frame. A frame traction rope 8 fixing seat 1.2 is installed at a set distance from the fixed pulley 1.1 on the lower surface of the rectangular frame. One end of the traction rope 8 is fixed at the frame traction rope 8 fixing seat 1.2, passes around the traction pulley 3.5 of the main tie rod assembly 3, and passes through the fixed pulley 1.1. The traction rope 8 can be rigidly connected to the human body. When the fixed end 8.1 of the traction rope is fixed at the traction pulley 3.5, the stroke can be reduced, and the stroke design range is wide.

[0038] The aluminum disc 2.1 fixed shaft system 2 includes an aluminum disc 2.1, a flange welded shaft 2.2, and a power input pulley 2.3. The aluminum disc 2.1 is mounted on the frame fixed bearing sleeve 1.3 via the aluminum disc fixed shaft system mounting bearing 55. One end of the flange welded shaft 2.2 is connected to the rotation center of the aluminum disc 2.1, and the other end of the flange welded shaft 2.2 is connected to the power input pulley 2.3. They are connected as a whole through a connector. The power input pulley 2.3 drives the aluminum disc 2.1 to rotate in the direction of the arrow on the surface of the aluminum disc 2.1.

[0039] The main tie rod assembly 3 includes a main tie bend tube 3.1, a main tie bend sleeve 3.2, a fixed rotating shaft 3.3, an end welded shaft 3.4, a traction pulley 3.5, and a counterweight 3.6. One end of the main tie bend tube 3.1 is equipped with the main tie bend sleeve 3.2, which is connected to the end of the flange welded shaft 2.2 of the aluminum disc 2.1 fixed shaft system 2 via the main tie rod mounting bearing 6. The other end of the main tie tube is equipped with the end welded shaft 3.4, with the counterweight 3.6 installed at one end and the traction pulley 3.5 installed at the other end. Two fixed rotating shafts 3.3 are provided on the main tie bend tube 3.1 at a set distance from the end welded shaft 3.4, with a certain gap between them. The fixed rotating shafts 3.3 are used to install the resistance adjustment brake assembly 4.

[0040] The adjustable braking assembly 4 includes a magnet assembly fixing frame 4.1, a connecting U-shaped frame 4.2, a swing frame pivot pin 4.4, a swing frame fixing nut 4.5, a swing frame locking nut 4.5, and a track bearing 4.7. One side of the magnet assembly fixing frame 4.1 is connected to the upper end of the main bending tube 3.1 via a tension spring 7. Specifically, a connecting bolt is provided at the connection point of the tension spring 7. One end of the connecting bolt is fixed to the upper end of the main bending tube 3.1, and the other end is connected to the tension spring 7. The end of the magnet assembly fixing frame 4.1 is connected to the connecting U-shaped frame 4.2. A swing frame 4.3 is provided on the side of the connecting U-shaped frame 4.2. The other end of the swing frame 4.3 is connected to the fixed rotating shaft 3.3. The fixed rotating shaft 3.3 is installed on the main bending tube 3.1. There are two swing frames 4.3, each corresponding to one of the two fixed rotating shafts 3.3.

[0041] The swing frame 4.3 includes a swing frame main board 4.3.1 and a swing frame bearing sleeve 4.3.2. One end of the swing frame main board 4.3.1 is mounted on the swing frame pivot pin 4.4 through the swing frame bearing sleeve 4.3.2. The track bearing 4.7 is set on the swing frame pivot pin 4.4 and is used to cooperate with the frame fixing cam limit plate 1.4 for installation. The swing frame pivot pin 4.4 is fixedly installed on the connecting U-shaped frame 4.2 by the swing frame fixing nut 4.5 and the swing frame locking nut 4.5.

[0042] Specifically, an aluminum disc fixing shaft system mounting bearing 55 is installed on the frame fixing bearing sleeve 1.3 on the frame 1, and the aluminum disc 2.1 fixing shaft system 2 is installed in it.

[0043] The aluminum disc 2.1 fixed shaft system 2 mainly consists of three parts: aluminum disc 2.1, flange welded shaft 2.2, and power input pulley 2.3. They are connected as a whole by connectors. The power input pulley 2.3 drives the aluminum disc 2.1 to rotate in the direction of its arrow.

[0044] The main tie rod is located at one end of the fixed shaft system 2 of the aluminum disk 2.1, and can rotate relative to the aluminum disk 2.1 by means of the bearing installed on the main tie rod.

[0045] The main pull rod is equipped with a resistance adjustment brake, which is driven by the tension spring 7 to move towards the aluminum disc 2.1. The trajectory bearing 4.7 is affected by the frame fixing cam limit plate 1.4, which can make the magnet assembly fixing frame 4.1 move along a specific trajectory and limit the movement at both ends.

[0046] Pulling through the traction end 8.2 of the traction rope, the main pull rod can be moved by the traction pulley 3.5, thereby causing the resistance adjustment brake part to move towards the aluminum disc 2.1 along a specific trajectory, and effectively brake in the final braking state. Note that the brake position trajectory bearing 4.7 and the frame fixed cam limit plate 1.4 do not contact each other.

[0047] This mechanism features a traction rope 8 that can be rigidly connected to the human body, eliminating the need for an additional buffer spring 7 in the middle; the stroke of the traction rope 8 can be very large, and when the fixed end 8.1 of the traction rope is fixed at the traction pulley 3.5, the stroke can be reduced, resulting in a wide range of stroke design; the resistance adjustment is more precise, and a predetermined resistance curve can be achieved through the design of the cam shape.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A large stroke band brake fine adjustment magnetic control mechanism, characterized by, It includes a frame, an aluminum disc fixed shaft system, a main tie rod mechanism, a resistance adjustment brake assembly, an aluminum disc fixed shaft system mounting bearing, a main tie rod mounting bearing, a tension spring, and a traction rope; the aluminum disc fixed shaft system is installed on one side of the frame, the main tie rod mechanism is installed on the shaft end of the aluminum disc fixed shaft system, the resistance adjustment brake assembly is provided on the main tie rod mechanism, and the resistance adjustment brake assembly is provided with a tension spring and a traction rope; The frame includes a rectangular frame and an inclined frame. The inclined frame is located on the bottom surface of the rectangular frame. A frame fixing bearing sleeve is installed on the outer side of the inclined frame, and a frame fixing cam limiting plate is installed on the inner side of the inclined frame. The frame fixing cam limiting plate is used to limit the trajectory bearing of the resistance adjustment brake assembly. The frame fixing cam limiting plate includes an arc plate with multiple weight reduction holes on its side. Two L-shaped plates are located on the outer arc surface of the arc plate, respectively at both ends of the outer arc surface. The L-shaped plates are fitted with the trajectory bearing, which can move between the two L-shaped plates along the outer arc surface of the arc plate. The aluminum disc fixing shaft system includes an aluminum disc, and the aluminum disc is mounted on the frame fixing bearing sleeve via the aluminum disc fixing shaft system mounting bearing. Driven by a tension spring, the track bearing moves towards the aluminum disc. Under the action of the frame fixing cam limit plate, the magnet assembly fixing frame can move along a specific trajectory and be limited at both ends.

2. The fine adjustment magnetic control mechanism for long stroke band brake as claimed in claim 1, wherein, A frame fixed pulley is installed at one end of the top surface of the rectangular frame. A frame traction rope fixing seat is installed at a set distance from the frame fixed pulley on the lower surface of the rectangular frame. One end of the traction rope is fixed at the frame traction rope fixing seat, passes around the traction pulley of the main tie rod assembly, and then passes through the frame fixed pulley.

3. The fine adjustment magnetic control mechanism for long stroke band brake as claimed in claim 1, wherein The main tie rod assembly includes a main tie bend tube, a main tie bend sleeve, a fixed rotating shaft, an end welded shaft, a traction pulley, and a counterweight. A main tie bend sleeve is installed at one end of the main tie bend tube, and the main tie bend sleeve is connected to the end of the flange welded shaft of the aluminum disc fixed shaft system via a main tie rod mounting bearing. An end welded shaft is installed at the other end of the main tie tube, with a counterweight installed at one end and a traction pulley installed at the other end. Two fixed rotating shafts are located at a set distance from the end welded shafts on the main tie bend tube, with a certain gap between the two fixed rotating shafts. The fixed rotating shafts are used to install a resistance adjustment brake assembly.

4. The long-stroke magnetic control mechanism with brake fine-tuning as described in claim 1, characterized in that, The adjustable brake assembly includes a magnet assembly fixing frame, a connecting U-shaped frame, a swing frame pivot pin, a swing frame fixing nut, a swing frame locking nut, a track bearing, and a bearing. One side of the magnet assembly fixing frame is connected to the aluminum disc via a tension spring, and the end of the magnet assembly fixing frame is connected to the connecting U-shaped frame. The connecting U-shaped frame has a swing frame on its side, and the other end of the swing frame is connected to a fixed rotating shaft. The fixed rotating shaft is installed on the main bending tube. There are two swing frames, each corresponding to one of the two fixed rotating shafts.

5. The long-stroke magnetic control mechanism with brake fine-tuning as described in claim 4, characterized in that, The swing frame includes a swing frame main board and a swing frame bearing sleeve. One end of the swing frame main board is mounted on the swing frame pivot pin through the swing frame bearing sleeve. The trajectory bearing is set on the swing frame pivot pin and is used to cooperate with the frame fixing cam limit plate. The swing frame pivot pin is fixedly installed on the connecting U-shaped frame using the swing frame fixing nut and the swing frame locking nut.

6. The long-stroke magnetic control mechanism with brake fine-tuning as described in claim 1, characterized in that, The aluminum disc fixed shaft system also includes a flange welded shaft and a power input pulley. One end of the flange welded shaft is connected to the rotation center of the aluminum disc, and the other end of the flange welded shaft is connected to the power input pulley. They are connected as a whole through a connector, and the power input pulley drives the aluminum disc to rotate in the direction of the arrow on the surface of the aluminum disc.

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