Strength training instrument

Abstract

The utility model discloses a strength training apparatus, which relates to the technical field of fitness equipment, and comprises a rack, a first wrapping part and a second wrapping part which can move synchronously are arranged on the rack, a first transmission rope is abutted against the first wrapping part, a first end of the first transmission rope is fixedly connected to the rack, and a second end of the first transmission rope is fixedly connected to the second wrapping part. The second end of the first transmission rope is configured to move relative to the rack under the action of external force, the second transmission rope is wound on the second winding part in an abutting mode, one end of the second transmission rope is fixedly connected to the rack, the other end of the second transmission rope is connected to the resistance source, and the resistance source is arranged on the rack. The first winding connection part and the second winding connection part are matched with the first transmission rope and the second transmission rope respectively to form two groups of movable pulley mechanisms, so that a user can perform strength training in a mode matched with the resistance of a resistance source under the condition that the space occupied by the strength training equipment is not changed under the action of force increasing and force reducing, and the user experience is improved. The situation that the strength training effect is reduced due to acting force attenuation waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a strength training device. Background Art

[0002] The application range of strength training equipment is very wide. It can provide users with a variety of training modes according to the training devices it is equipped with. As a type of strength training equipment, the power station saves more space and is more convenient to use than traditional fitness equipment.

[0003] At present, most strength training equipment generally sets a set of movable pulley mechanisms at the output end of the resistance source to save space, so as to achieve the above purpose by reducing the stroke of the resistance source during training. However, since the movable pulley mechanism is a labor-saving mechanism, setting it between the resistance source and the force-applying component will result in the final force output to the force-applying component only reaching half of the force applied by the resistance source to the movable pulley mechanism, which greatly reduces the strength training effect. In order to improve the training effect, it is necessary to set a resistance source that can provide greater resistance, which not only increases the cost of the equipment, but also occupies more space and cannot meet the needs of convenient use. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a strength training device to solve the problem that the force of the resistance source of the device is attenuated and wasted, resulting in a decrease in the strength training effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] Provided is a strength training device, comprising:

[0007] A frame, on which a first winding portion and a second winding portion that can move synchronously are provided;

[0008] A first transmission rope is wound around the first winding portion, a first end of the first transmission rope is fixedly connected to the frame, and a second end of the first transmission rope is configured to move relative to the frame under the action of an external force;

[0009] The second transmission rope is wound around the second winding portion, one end of the second transmission rope is fixedly connected to the frame, and the other end of the second transmission rope is connected to the resistance source, which is arranged on the frame. This not only reduces the resistance source travel, maintains the space-saving product feature of the strength training device, but also allows the user to perform strength training in a manner that matches the resistance of the resistance source, thereby improving the strength training effect.

[0010] As an optional embodiment, the first winding part is fixedly connected to the second winding part. The first winding part and the second winding part are fixed together to reduce the material parts used for assembling the first winding part and the second winding part on the frame, thereby improving the compactness of the overall structure of the device.

[0011] As an optional implementation, a connecting piece is provided between the first winding portion and the second winding portion, and the first winding portion and the second winding portion are fixedly connected via the connecting piece; and

[0012] A first winding space is formed between the first winding portion and the connecting member, and the first transmission rope passes through the first winding space and is wound around the first winding portion; and

[0013] A second winding space is formed between the second winding portion and the connecting member, and the second transmission rope passes through the second winding space and abuts against the second winding portion. The assembly relationship between the first winding portion and the second winding portion is reasonably laid out and designed to further improve the structural compactness between the first winding portion and the second winding portion.

[0014] As an optional implementation, the first winding portion and the second winding portion are both pulleys;

[0015] The first wrapping portion is rotatably mounted on the first side of the connecting member via a first wheel seat;

[0016] The second winding part is rotatably mounted on the second side of the connecting member through the second wheel seat, so as to reduce the friction between each winding part and each transmission rope and prolong the service life of the equipment product.

[0017] As an optional embodiment, the first winding portion and the second winding portion are spaced apart along their movement directions, and the first transmission rope and the second transmission rope are respectively wound around one side of the first winding portion and the second winding portion opposite to each other;

[0018] The parts of the first transmission rope located on opposite sides of the first winding portion are arranged parallel to each other;

[0019] The resistance source is located on the side of the second winding part away from the first winding part, and the parts of the second transmission rope located on the opposite sides of the second winding part are arranged parallel to each other. The positions of each transmission rope located on the corresponding winding part are all in a state of relatively high force transmission efficiency, thereby improving the strength training effect of the equipment.

[0020] As an optional implementation, the resistance source includes:

[0021] A winding wheel is rotatably arranged on the frame, one end of the second transmission rope is connected to the winding wheel and at least partially wound around the winding wheel;

[0022] The driving motor is mounted on the frame and connected to the winding wheel, and the driving motor is used to apply a force to the winding wheel to rotate in the direction of winding the second transmission rope. The travel of the resistance source is reduced, and the resistance output is kept stable, which reduces the risk of injury to the user and improves the strength training effect.

[0023] As an optional embodiment, the first winding part and the second winding part are both coordinated with the frame guide through the first guide structure, so that the first winding part and the second winding part are more stable during the relative movement of the frame, which effectively protects the device itself and reduces the risk of user injury.

[0024] The first guide structure comprises at least two first guide parts arranged along the movement direction of the first winding part and the second winding part, and each of the first guide parts is arranged on the frame at intervals;

[0025] A connecting piece is provided between the first winding part and the second winding part, the first winding part and the second winding part are fixedly connected by the connecting piece, the connecting piece is provided between the first guide parts, and a second guide part is provided on the outer side of the connecting piece to cooperate with the first guide part, the connecting piece is movably connected to the frame by the second guide part. On the basis that the first winding part and the second winding part are fixedly connected by the connecting piece and cooperate with the frame guide, the material parts used in the device are further reduced, the device processing and production costs are reduced, and the device structure is also made simpler and more compact.

[0026] As an optional implementation, it also includes:

[0027] An adjustment frame, the adjustment frame can be movably mounted on the frame and can be movably adjusted relative to the frame;

[0028] The first end of the first transmission rope is fixed to the adjustment frame, and the second end of the first transmission rope is movably connected to the adjustment frame, so that the position of the first transmission rope on the frame can be adjusted, and at the same time, the first transmission rope forms a closed loop structure on the frame to avoid mutual interference with the resistance source during the adjustment process.

[0029] As an optional implementation, the rack includes:

[0030] An adjusting rod, wherein a plurality of first locking portions are arranged at intervals along the length direction of the adjusting rod;

[0031] The adjustment frame can be movably arranged on the adjustment rod and can move relative to the adjustment rod along the length direction of the adjustment rod. The adjustment frame is provided with a second locking portion, and the adjustment frame can be locked and unlocked with the adjustment rod through the second locking portion and the first locking portion. The operation process of the adjustment frame is simplified, and it is convenient for the user to adjust the force application position suitable for himself.

[0032] As an optional implementation, the adjustment frame includes:

[0033] A first bracket, movably mounted on the adjusting rod; and

[0034] A second bracket is rotatably disposed on the first bracket, and a rotation axis of the second bracket on the first bracket is parallel to the adjustment rod;

[0035] The second end of the first transmission rope is movably connected to the second bracket, so that the adjustment frame can adapt to the direction of the external force during strength training, and the connection relationship between the first transmission rope and the adjustment frame remains stable.

[0036] As an optional implementation, the adjustment rod is arranged outside the first winding portion and the second winding portion;

[0037] The frame is also provided with at least one set of reversing components, and the first transmission rope can be wound around the reversing components and the first winding portion, thereby improving the rationality of the layout of the first transmission rope on the frame and avoiding problems such as interference and winding between the first transmission rope and related components.

[0038] The beneficial effect of the utility model is that the strength training equipment is provided with a first winding part and a second winding part which can move synchronously relative to the frame, so that the first transmission rope and the first winding part, and the second transmission rope and the second winding part respectively cooperate to form two groups of components similar to the movable pulley mechanism.

[0039] During strength training, the second movable pulley needs to provide twice the force provided by the resistance source to achieve the effect of increasing force. Under the action of the first winding part, the resistance source stroke can be reduced, so that the space occupied by the strength training equipment remains unchanged. In addition, the force output to the first transmission rope is halved to achieve force reduction, allowing users to perform strength training in a manner that matches the resistance of the resistance source, avoiding the situation where the force output by the resistance source is attenuated and wasted, resulting in a decrease in the strength training effect, thereby meeting the user's usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The utility model is further described in detail below based on the drawings and embodiments.

[0041] Figure 1This is one of the overall structural diagrams of the strength training device described in the embodiment of the utility model (the first transmission rope and the second transmission rope are omitted);

[0042] Figure 2 for Figure 1 A magnified view of part A;

[0043] Figure 3 This is the second schematic diagram of the overall structure of the strength training device according to the embodiment of the utility model;

[0044] Figure 4 for Figure 3 A magnified view of part B;

[0045] Figure 5 for Figure 3 Magnified view of the C section;

[0046] Figure 6 This is a schematic diagram of the assembly structure of the first winding portion and the second winding portion of the embodiment of the utility model;

[0047] Figure 7 This is a force analysis diagram of the strength training device described in the embodiment of the utility model.

[0048] In the figure: 10, frame; 11, support base; 12, support frame; 121, adjustment rod; 1211, first locking portion; 122, adjustment frame; 1221, first bracket; 1222, second bracket; 1223, second locking portion; 1224, limit wheel; 123, top frame; 13, first guide portion; 14, first pulley; 15, second pulley; 16, third pulley; 17, fourth pulley; 18, fifth pulley; 20, first winding portion; 30 , second winding portion; 40, connecting member; 41, first winding space; 42, second winding space; 43, second guide portion; 44, first wheel seat; 441, first seat plate; 442, second seat plate; 45, second wheel seat; 50, first transmission rope; 51, first transmission section; 52, second transmission section; 53, driving member; 531, limit block; 60, second transmission rope; 70, resistance source; 71, winding wheel; 72, driving motor; 80, locking component. DETAILED DESCRIPTION

[0049] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model are further described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] The application range of strength training equipment is very wide. It can provide users with a variety of training modes according to the training devices it is equipped with. As a type of strength training equipment, the power station saves more space and is more convenient to use than traditional fitness equipment.

[0053] As can be seen from the background technology, most of the current power station equipment generally sets a set of movable pulley mechanisms at the output end of the resistance source 70 to save the occupied space, so as to achieve the above purpose by reducing the stroke of the resistance source 70 during training. However, since the movable pulley mechanism is a labor-saving mechanism, setting it between the resistance source 70 and the force-applying component will result in the final force output to the force-applying component only reaching half of the force applied by the resistance source 70 to the movable pulley mechanism, which greatly reduces the strength training effect. In order to improve the training effect, it is necessary to set a resistance source 70 that can provide greater resistance, which not only increases the cost of the equipment, but also occupies more space and cannot meet the needs of convenient use.

[0054] To this end, the present embodiment provides a strength training device, which, by providing two sets of synchronously moving movable pulley mechanisms and rationally arranging the relevant transmission components in the device, can solve a series of problems such as reduced training effect caused by the attenuation and waste of the force of the resistance source 70 during the user's strength training.

[0055] Please refer to the attached Figure 1-Figure 5The strength training device includes a frame 10, wherein the frame 10 serves as a supporting base of the device and can be set to a corresponding structural form according to the strength training items to be provided by the strength training device, so that the frame 10 can support the corresponding strength training device. Therefore, this embodiment does not have strict limitations on the specific structure of the frame 10.

[0056] Exemplarily, the frame 10 of this embodiment is provided with a support base 11 and a support frame 12 arranged on the support base 11. The support base 11 is located at a position relatively close to a support plane (such as the ground), and the support frame 12 is installed on the support base 11. The structure and setting direction of the support frame 12 on the support base 11 are adaptively adjusted according to the function of the equipment. It can be vertically set in a direction perpendicular to the support plane, or horizontally set in a direction parallel to the support plane. Of course, it can also be set in a direction inclined to the support plane.

[0057] It should be noted that the support base 11 and the support frame 12 in the frame 10 can cooperate to provide installation positions for strength training devices with different training modes, and the strength training items that can be provided by the strength training device include but are not limited to bodyweight training, dumbbell training, barbell training, puller training, chest press, push-on training, etc. In addition, the frame 10 can also be equipped with one or more strength training devices adapted to different needs to improve the versatility of the device.

[0058] On the basis of the above-mentioned structure of the frame 10, the frame 10 is provided with a first winding portion 20 and a second winding portion 30 that can move synchronously. When the frame 10 is supported on a supporting plane, the first winding portion 20 and the second winding portion 30 can move synchronously relative to the frame 10 under the action of an external force, and the direction of the reciprocating motion of the first winding portion 20 and the second winding portion 30 relative to the frame 10 can be determined according to the specific strength training items provided by the strength training device, for example:

[0059] The first winding portion 20 and the second winding portion 30 can both move synchronously relative to the frame 10 in the vertical direction;

[0060] The first winding portion 20 and the second winding portion 30 can both move synchronously relative to the frame 10 in the horizontal direction;

[0061] Of course, the first winding portion 20 and the second winding portion 30 may also be arranged to move synchronously relative to the frame 10 in a direction inclined to the supporting plane. In this regard, the present embodiment does not make any specific and strict limitation.

[0062] The first winding portion 20 and the second winding portion 30 can be fixedly connected or transmission-connected to achieve synchronous movement on the frame 10 .

[0063] For example, in an embodiment where the first winding portion 20 and the second winding portion 30 are fixedly connected, the first winding portion 20 and the second winding portion 30 can be both mounted on a fixing component so that the two can be regarded as a whole, so that one of the first winding portion 20 and the second winding portion 30 can drive the other to move synchronously relative to the frame 10 through the fixing component under the action of an external force;

[0064] In the embodiment in which the first winding part 20 and the second winding part 30 are transmission-connected, a transmission mechanism can be provided between the first winding part 20 and the second winding part 30 so that the two can achieve a transmission coordination effect. For example, a transmission component such as a gear set, a connecting rod, a sprocket chain, a transmission belt, etc. is provided between the first winding part 20 and the second winding part 30 to realize the transmission of the first winding part 20 and the second winding part 30, so that when one of the first winding part 20 and the second winding part 30 is under force, the other can be driven to move synchronously relative to the frame 10 through the transmission mechanism.

[0065] Please continue to refer to the attached Figure 1-Figure 5 , Figure 7 The strength training device also includes a first transmission rope 50 and a second transmission rope 60. The first winding part 20 and the second winding part 30 respectively transmit force to the frame 10 through the first transmission rope 50 and the second transmission rope 60, and also allow the user to have a position to apply external force to the first winding part 20 and the second winding part 30, so as to achieve the purpose of satisfying the effect of the corresponding strength training project.

[0066] It is understandable that since the strength training device needs to transmit the force between the components through the first transmission rope 50 and the second transmission rope 60, the first transmission rope 50 and the second transmission rope 60 have a certain flexibility so that they can be suitable for the relative movement between the components. At the same time, they also need to have a certain rigidity so that the first transmission rope 50 and the second transmission rope 60 can withstand greater tension, thereby avoiding the first transmission rope 50 and the second transmission rope 60 from breaking during the force transmission process, and effectively extending the service life of the device. Exemplarily, the first transmission rope 50 and the second transmission rope 60 can be steel wire ropes. In addition to meeting the above requirements, the steel wire ropes are relatively thin, which can effectively avoid the problem of occupying too much space and causing the volume of the strength training device to increase.

[0067] Specifically, the first transmission rope 50 is wound around the first winding portion 20 and is maintained in a state of acting on at least a portion of the first winding portion 20, wherein the first end of the first transmission rope 50 is fixedly connected to the frame 10, and the second end of the first transmission rope 50 is configured to be movable relative to the frame 10 under the action of an external force. The movement of the first winding portion 20 relative to the frame 10 is driven by the first transmission rope 50. It should be understood that the frame 10, the first transmission rope 50 and the first winding portion 20 cooperate to form a first movable pulley mechanism. Exemplarily, during the process of a user performing a corresponding strength training program through the strength training device, the second end of the first transmission rope 50 acts as the user's force-applying end, which can be provided with force-applying components such as handles and pedals to provide the user with a force-applying position for a body part such as an upper limb or a lower limb. The user pulls the second end of the first transmission rope 50. Since the first end of the first transmission rope 50 is relatively fixed to the frame 10, under the pulling of the user, , the portion other than the first end of the first transmission rope 50 will generate relative movement with the frame 10, thereby driving the first winding portion 20 to move relative to the frame 10 in the process. According to the movable pulley principle, that is, the lever with a force arm equal to twice the resistance arm (effort-saving lever), that is, the pulling force applied by the user to the first transmission rope 50 is half of the resistance of the resistance source 70 on the first winding portion 20, and according to the principle that the movable pulley mechanism saves effort but not work, the stroke of the resistance source 70 is correspondingly reduced by half, so as to shorten the formation of the resistance source 70 and avoid it occupying too much internal assembly space of the strength training equipment, thereby meeting the needs of the equipment to save space and be convenient to use.

[0068] In the above embodiment, since the second winding portion 30 is configured to move synchronously with the first winding portion 20, when the user drives the first winding portion 20 to move relative to the frame 10 through the first transmission rope 50, the second winding portion 30 will also be directly or indirectly affected by the first winding portion 20 and move synchronously with the first winding portion 20 relative to the frame 10.

[0069] The second transmission rope 60 is wound around the second winding portion 30 and acts on at least a portion of the second winding portion 30, wherein one end of the second transmission rope 60 is fixedly connected to the frame 10, and the other end of the second transmission rope 60 is connected to the frame 10 through the resistance source 70 mentioned above. The frame 10, the second transmission rope 60, the resistance source 70 and the second winding portion 30 cooperate to form a first movable pulley mechanism, and the resistance source 70 is used to apply a force to the second winding portion 30 that is opposite to the force applied to it by the first winding portion 20. For example, the first winding portion 20 is driven by the first transmission rope 50 to During the synchronous movement of the winding part 30, the second winding part 30 is located on the frame 10 and moves from the first position to the second position, and the resistance source 70 is used to continuously apply a force to the second winding part 30 to move in the direction of the first position, so that the second winding part 30 has a tendency to return to the first position, and the reaction force will eventually be transmitted to the first transmission rope 50 via the second transmission rope 60, the second winding part 30 and the first winding part 20, thereby acting on the corresponding limb of the user. In this way, the user needs to output a force sufficient to overcome the resistance source 70 in order to pull the first transmission rope 50 to achieve the training purpose.

[0070] In one embodiment, the resistance source 70 can be an elastic energy storage unit with elastic reset capability, such as an elastic rope, a spring (including but not limited to a tension spring, a compression spring, a torsion spring, a gas spring, etc.), an elastic plate, etc. The resistance source 70 is respectively connected to the frame 10 and the second transmission rope 60 so as to keep it in a state of acting on the second transmission rope 60. In this embodiment, the force acting on the second winding portion 30 can be adjusted by adjusting the number of elastic energy storage units between the frame 10 and the second transmission rope 60, or by replacing elastic energy storage units with different elastic coefficients, etc., so as to achieve the purpose of adjusting the training intensity; or, the resistance source 70 can also be a counterweight block. In this embodiment, the counterweight block can be connected to the frame 10 and the second transmission rope 60, and can also cooperate with the frame 10 guide to make the counterweight block more stable during the movement process acted upon by the second transmission rope 60, and by adjusting the number of counterweight blocks and the weight corresponding to each counterweight block, the above-mentioned purpose of adjusting the training intensity can be achieved.

[0071] Of course, in other embodiments, the resistance source 70 can also be a component that applies a force opposite to the direction of the applied force to the second winding portion 30 through the second transmission rope 60 in other ways, such as applying a corresponding reaction force to the second winding portion 30 through the cooperation of a motor and a transmission mechanism, etc.

[0072] According to the above embodiment, when the user pulls the first transmission rope 50, the first transmission rope 50 applies a force to the second winding part 30 to move in the direction of the second position through the first winding part 20, so that the second winding part 30 moves synchronously with the frame 10. During the movement of the second winding part 30 in the direction of the second position, a transmission relationship is established with the resistance source 70 through the second transmission rope 60. The resistance source 70 continuously applies a reaction force to the second winding part 30 in the opposite direction of its movement during this process. That is, as described above, the resistance source 70 applies a force to the second winding part 30 to reset in the first direction through the second transmission rope 60. Finally, the reaction force is transmitted to the corresponding limb of the user through the second transmission rope 60, the second winding part 30, the first winding part 20, and the first transmission rope 50 in sequence, providing corresponding resistance to the direction of force applied by the user, thereby achieving the purpose of strength training.

[0073] like Figure 7 As shown, combined with the force analysis diagram of the strength training device, it can be seen that during the strength training process, the first transmission rope 50 and the second transmission rope 60 are respectively wound around the relative positions of the first winding part 20 and the second winding part 30, and in the process of force transmission, forces in directions away from each other are applied to the first winding part 20 and the second winding part 30 respectively. Since the first winding part 20 acts on the second transmission rope 60 through the second winding part 30, when the resistance source 70 applies a force F to the second winding part 30, the force transmitted from the second winding part 30 to the first winding part 20 will be doubled. Under the force amplification effect, the force transmitted from the second winding part 30 to the first winding part 20 The force is 2F, and the opposite ends of the second transmission rope 60 bear the force F respectively, and correspondingly, the opposite ends of the first transmission rope 50 wrapped around the first winding part 20 bear the force 2F respectively. Under the force reduction effect, the force borne by the opposite ends of the first transmission rope 50 is restored to the magnitude of the force F. Finally, through the cooperation of the above two sets of movable pulley mechanisms, it is ensured that the stroke of the resistance source 70 is reduced, so that the space occupied by the strength training equipment remains unchanged, allowing the user to perform strength training in a manner that matches the resistance of the resistance source 70, avoiding the attenuation and waste of the force output by the resistance source 70, which leads to a decrease in the strength training effect, thereby meeting the user's usage needs.

[0074] It is worth mentioning that in the above process, based on the first transmission rope 50 and the second transmission rope 60 acting on the first winding part 20 and the second winding part 30 respectively, relative movement will occur between the first transmission rope 50 and the first winding part 20, and between the second transmission rope 60 and the second winding part 30, which will cause greater friction between the above components and cause wear as the number of uses and duration increase, thereby shortening the service life of the device.

[0075] Therefore, in order to reduce the friction between the above-mentioned components and provide effective protection for the related components, in one embodiment, the first winding portion 20 and the second winding portion 30 are provided at the positions where the first transmission rope 50 and the second transmission rope 60 act respectively, and the surface friction can be reduced by providing self-lubricating materials, etc., so that the first transmission rope 50 and the first winding portion 20, and the second transmission rope 60 and the second winding portion 30 form a sliding fit;

[0076] In another embodiment, the first winding portion 20 and the second winding portion 30 are configured as a structure that can rotate independently relative to the frame 10, which can be configured as a pulley structure. In this way, the first winding portion 20 and the second winding portion 30 can rotate respectively under the action of the first transmission rope 50 and the second transmission rope 60, thereby avoiding the occurrence of wear caused by relative movement of any of the above two.

[0077] In any of the above embodiments, in order to improve the matching stability between each transmission rope (including the first transmission rope 50 and the second transmission rope 60) and each winding part (including the first winding part 20 and the second winding part 30), a rope groove can be recessed on the surface of each winding part, or a limit plate can be provided on the winding part to constrain the transmission rope, so as to prevent the transmission rope from detaching from the winding part.

[0078] Please continue to refer to the attached Figure 1 , Figure 3-Figure 4 , Figure 6-Figure 7 In the following, the embodiment in which the first winding portion 20 and the second winding portion 30 are fixedly connected is taken as an example. In this embodiment, the connection line between the first winding portion 20 and the second winding portion 30 can be parallel to the direction in which the two are moved relative to the frame 10, or can be perpendicular to each other and arranged in any direction. This embodiment does not make any specific limitation on this.

[0079] In one embodiment, the first winding portion 20 and the second winding portion 30 are fixed on the same fixed component. Therefore, the first winding portion 20 and the second winding portion 30 are in a relatively close position. It should be noted that corresponding winding positions and spaces need to be provided between the first winding portion 20 and the second winding portion 30 for the first transmission rope 50 and the second transmission rope 60 respectively, so as to ensure that the force transmission relationship between the first transmission rope 50 and the first winding portion 20, and between the second transmission rope 60 and the second winding portion 30 can meet the requirements of the above-mentioned technical effects, thereby ensuring that the strength training equipment can stably provide the corresponding training functions.

[0080] By arranging both the first winding portion 20 and the second winding portion 30 on a fixed component, the space occupied by the transmission mechanism formed between the first winding portion 20 and the second winding portion 30 can be effectively saved, thereby improving the structural compactness of the strength training device.

[0081] In one embodiment, please refer to the attached Figure 3-Figure 4 , Figure 6 A connecting member 40 is provided between the first winding portion 20 and the second winding portion 30, and the first winding portion 20 and the second winding portion 30 are fixedly connected by the connecting member 40. That is, the first winding portion 20 and the second winding portion 30 are disposed on opposite sides of the connecting member 40. The connecting member 40 is disposed therebetween, which can effectively reduce the installation space occupied by the pulley assembly and also maintain its structure with high compactness.

[0082] However, it can also be seen from this solution that since the first transmission rope 50 and the second transmission rope 60 need to be respectively coiled around opposite positions so that one of them can drive the corresponding transmission rope to produce corresponding movement when moving in the direction away from the other, therefore, when the connecting member 40 is located between the first winding portion 20 and the second winding portion 30, the first winding portion 20 and the second winding portion 30 need to be mounted on the connecting member 40 so that a space for the transmission rope to pass through can be formed between any two of them.

[0083] Specifically, a first winding space 41 is formed between the first winding portion 20 and the connecting member 40, the first transmission rope 50 passes through the first winding space 41 and is wound around the first winding portion 20, and a second winding space 42 is formed between the second winding portion 30 and the connecting member 40, the second transmission rope 60 passes through the second winding space 42 and is wound around the second winding portion 30, that is, the first winding space 41 and the second winding space 42 are located on the side where the first winding portion 20 and the second winding portion 30 are close to each other, and after the first transmission rope 50 and the second transmission rope 60 pass through the first winding space 41 and the second winding space 42 respectively, they can be respectively wound around the first winding portion 20 and the second winding portion 30 which are opposite to each other, so as to achieve the purpose of applying forces in opposite directions to the first winding portion 20 and the second winding portion 30 respectively. In the above, the first winding part 20 and the second winding part 30 are mounted on the connecting member 40, and a corresponding winding space is formed between any two of them. In addition to ensuring that the corresponding transmission rope can pass through the corresponding winding space and cooperate with the corresponding winding part, the cooperation between the first winding part 20 and the connecting member 40, and between the second winding part 30 and the connecting member 40 can also limit the movement of the first transmission rope 50 and the second transmission rope 60 to a certain extent, thereby preventing the first transmission rope 50 and the second transmission rope 60 from detaching from the first winding part 20 or the second winding part 30.

[0084] According to the above embodiment, regardless of whether the connection line between the first winding portion 20 and the second winding portion 30 is set to be parallel to the movement direction of the two, perpendicular to each other, or set in any direction, the above-mentioned solution of achieving fixed connection through the connecting member 40 can be adopted. This embodiment has no specific restrictions and requirements on the relative positions of the first winding portion 20 and the second winding portion 30 on the frame 10.

[0085] Of course, in other embodiments, the first winding part 20 and the second winding part 30 can also be fixedly connected by a supporting member such as a supporting frame or a supporting plate disposed outside the first winding part 20 and the second winding part 30. However, since the supporting member is disposed outside the first winding part 20 and the second winding part 30 in this embodiment, the difficulty of disassembling and assembling the first winding part 20 and the second winding part 30 on the corresponding supporting member will be increased accordingly, which is not conducive to daily maintenance. At the same time, the external supporting member occupies a larger space than the connection member 40 disposed between the first winding part 20 and the second winding part 30, thereby reducing the structural compactness of the assembly.

[0086] Please continue to refer to the attached Figure 3-Figure 4 , Figure 6 In the above embodiment, it is mentioned that in order to reduce the friction between the first winding part 20 and the first transmission rope 50, and between the second winding part 30 and the second transmission rope 60, the first winding part 20 and the second winding part 30 can be both configured as pulleys, and on this basis, the first winding part 20 and the second winding part 30 are located at the connecting member 40 and need to be installed and fixed to the connecting member 40 through pulley seats respectively.

[0087] Exemplarily, the first winding portion 20 is rotatably mounted on the first side of the connecting member 40 via the first wheel seat 44, and correspondingly, the second winding portion 30 is rotatably mounted on the second side of the connecting member 40 via the second wheel seat 45. In this embodiment, openings are respectively formed on the first wheel seat 44 and the second wheel seat 45, which are opened in directions away from each other. The openings can respectively provide corresponding disassembly and assembly space for the first winding portion 20 and the second winding portion 30, so as to facilitate the processing and assembly between the first winding portion 20, the second winding portion 30 and the connecting member 40 and the subsequent disassembly and maintenance.

[0088] As a more specific example, the first wheel seat 44 and the second wheel seat 45 both include a first seat plate 441 and a second seat plate 442 that are opposite and spaced apart. One end of the first seat plate 441 and the second seat plate 442 are connected via a connecting plate. The other ends of the first seat plate 441 and the second seat plate 442 are spaced apart to form the above-mentioned opening. The first seat plate 441 and the second seat plate 442 are respectively mounted on the connecting member 40 via their respective connecting plates so that the openings of the two are arranged in opposite directions. The first winding portion 20 and the second winding portion 30 can be assembled in the receiving space formed between the first seat plate 441 and the second seat plate 442 through the opening, and are rotatably connected to the first seat plate 441 and the second seat plate 442 via shaft system components, respectively. Therefore, on the basis of this structure, the above-mentioned first winding space 41 and the second winding space 42 are respectively formed between the first winding part 20 and the corresponding connecting plate, and between the second winding part 30 and the corresponding connecting plate. In the specific assembly process, the first transmission rope 50 and the second transmission rope 60 can respectively enter between the first seat plate 441 and the second seat plate 442 through the corresponding openings, and then the first winding part 20 and the second winding part 30 are assembled to the corresponding first wheel seat 44 and the second wheel seat 45, thereby closing the channel between the opening and the corresponding winding space, and only the two opposite ends of the winding channel are connected to the outside of the wheel seat, combined with the groove structure opened on the surface of the winding part, so as to achieve the above-mentioned purpose of limiting the transmission rope from detaching from the corresponding winding part.

[0089] In one embodiment, in an embodiment in which the first winding portion 20 and the second winding portion 30 can move synchronously relative to the frame 10, the movement directions of the two can be set to be the same or opposite.

[0090] In the case of the above-mentioned embodiment in which the first winding part 20 and the second winding part 30 are fixedly connected, the first winding part 20 and the second winding part 30 realize synchronous movement in the same direction, and the first winding part 20 and the second winding part 30 are arranged at intervals along the movement direction of the two. That is, in this embodiment, a first winding space 41 for the first transmission rope 50 to pass through and a second winding space 42 for the second transmission rope 60 to pass through can be formed between the first winding part 20 and the second winding part 30. In the embodiment in which a connecting member 40 is arranged between the two, the first winding part 20, the connecting member 40 and the second winding part 30 are arranged in sequence at intervals along the above-mentioned movement direction, and the first transmission rope 50 and the second transmission rope 60 are respectively wound on the opposite side of the first winding part 20 and the second winding part 30.

[0091] like Figure 3-Figure 4 , Figure 7As shown, following the above embodiment, further, taking the manner in which the first winding portion 20 and the second winding portion 30 are located on the frame 10 and can be arranged along the lifting direction perpendicular to the horizontal plane as an example, the first transmission rope 50 is located on the two pairs of sides of the first winding portion 20 (the two sections tangent to the first winding portion 20) can also be arranged to extend along the lifting direction. In one embodiment, the opposite ends of the first transmission rope 50 are both located on the first side of the frame 10. For ease of understanding, this embodiment defines the parts of the first transmission rope 50 located on the opposite sides of the first winding portion 20 as the first transmission section 51 and the second transmission section 52, respectively. It can be seen from the accompanying drawings that the first transmission section 51 and the second transmission section 52 are arranged in parallel, and are also parallel to the movement directions of the first winding portion 20 and the second winding portion 30. Correspondingly, the portions of the second transmission rope 60 located on the opposite sides of the second winding portion 30 (the two sections tangent to the second winding portion 30) are also arranged to extend in the lifting direction, and the extending directions of the first transmission rope 50 and the second transmission rope 60 are opposite. In one embodiment, the opposite ends of the second transmission rope 60 are both located on the second side of the frame 10, that is, in this embodiment, the first transmission rope 50 is moved toward the second side of the frame 10. Figure 3 The second transmission rope 60 extends in the upward direction of the upper side of the Figure 3 The lower side of the first winding portion 20 and the second winding portion 30 extend in a descending direction thereof, so as to achieve the purpose of applying opposite forces to the first winding portion 20 and the second winding portion 30 respectively.

[0092] In other embodiments, taking the example of the first winding portion 20 and the second winding portion 30 being arranged on the frame 10 along a horizontal direction parallel to the horizontal plane, the portions of the first transmission rope 50 located on the opposite sides of the first winding portion 20 and the portions of the second transmission rope 60 located on the opposite sides of the second winding portion 30 both extend in the horizontal direction, and the first transmission rope 50 extends in a direction away from the second winding portion 30 from the first winding portion 20, and the second transmission rope 60 extends in a direction away from the second winding portion 30, to ensure that the lever formed on the movable pulley mechanism is perpendicular to the force direction of the winding portion, and remains in a state where the power arm is twice the resistance arm, thereby allowing the pulley mechanism to be in a state of highest force transmission efficiency.

[0093] In short, under the restriction of the first winding part 20 and the second winding part 30, the parts of the first transmission rope 50 and the second transmission rope 60 respectively cooperating with the first winding part 20 and the second winding part 30 are located on the frame 10 to roughly form a "U"-shaped structure with two opposite openings.

[0094] In one embodiment, the design idea of ​​improving the compactness of the strength training device is continued, such as Figure 3-Figure 4As shown, the resistance source 70 includes a winding wheel 71 and a driving motor 72, wherein the winding wheel 71 is rotatably disposed on the frame 10, and can be specifically disposed within the support base 11 together with the driving motor 72 to stabilize the center of gravity of the strength training equipment, and one end of the second transmission rope 60 can be connected to the winding wheel 71 by different methods such as bonding, clamping, abutting, and plugging, and at least partially wound on the outer periphery of the winding wheel 71.

[0095] In the above embodiment, the winding wheel 71 can be fixedly mounted on the bracket by means of a bracket or other structure, so that the winding wheel 71 can be stably assembled on the frame 10, thereby ensuring that the force applied by the resistance source 70 to the second transmission rope 60 remains within a relatively constant range of values.

[0096] It should be noted that by adopting the winding wheel 71 as the transmission component for the power output of the resistance source 70, when the first winding portion 20 and the second winding portion 30 are in the initial state relatively close to the resistance source 70 (the first position state mentioned above), most of the second transmission rope 60 can be wound on the winding wheel 71. Compared with the method of directly adopting an elastic energy storage mechanism and a driving device with a larger length, it can effectively save the installation space occupied by the resistance source 70, and is conducive to shortening the formation of the resistance source 70, ensuring that the strength training equipment has a high structural compactness. In the strength training equipment where the frame 10 is arranged in the vertical direction, the height dimension of the equipment can be effectively reduced, and in the strength training equipment where the frame 10 is arranged in the horizontal direction, the length or width dimension of the equipment can be effectively reduced.

[0097] On the basis of the above-mentioned setting method of the winding wheel 71, the driving motor 72 is installed on the frame 10 and is drivingly connected to the winding wheel 71. Specifically, the driving motor 72 includes a motor housing and a rotatable output shaft. The driving motor 72 is fixedly installed on the frame 10 through the motor housing, and is drivingly connected to the winding wheel 71 through the output shaft. It can realize the rotation control of the winding wheel 71 through a transmission mechanism, or directly adopt a coaxial connection method to realize the corresponding function. The driving motor 72 serves as the power output part of the resistance source 70, which is used to apply a force to the winding wheel 71 to rotate in the direction of winding the second transmission rope 60. That is, when the user pulls the first transmission rope 50, it is necessary to apply a force greater than the force applied by the driving motor 72 to the second transmission rope 60, so that the first transmission rope 50 can be pulled out of the frame 10, so that the first winding part 20 and the second winding part 30 can move from the first position to the second position.

[0098] Of course, in other embodiments, the present invention does not exclude the solution of applying a force in a corresponding direction to the winding wheel 71 through elastic components such as a torsion spring.

[0099] Compared with the method of using a motor as the power output component of the resistance source 70, it is understandable that the force of the spring acting on the second transmission rope 60 is generally changed during the deformation process, so during the user's strength training, the force transmitted to the user's limbs by the resistance source 70 also changes accordingly, and the resistance generated by the strength training cannot be accurately controlled, the force transmission stability is poor, and the risk of injury to the user is increased. In addition, the method of using the spring as the resistance source 70 is also difficult to apply a larger resistance (such as a force of hundreds of kilograms) to the second transmission rope 60, which is difficult to meet the needs of users with greater strength training. The drive motor 72 can achieve constant power output, so as to achieve the purpose of accurately adjusting the force acting on the second transmission rope 60, and it can also allow it to apply a larger resistance to the second transmission rope 60, and can also realize different training modes through electronic control and algorithms, such as centrifugal mode, constant speed mode, rowing mode, etc., and can also set intelligent functions such as stall protection, so as to meet different user needs.

[0100] In order to improve the stability of the first winding portion 20 and the second winding portion 30 during the movement between the above two positions, two implementations are provided below:

[0101] 1. Both the first winding portion 20 and the second winding portion 30 are guided and cooperated with the frame 10 through the first guide structure. This embodiment is suitable for the situation where the first winding portion 20 and the second winding portion 30 are relatively fixed so that the two can rely on the unified guide structure to achieve guided movement on the frame 10.

[0102] 2. The first winding portion 20 is guided and matched with the frame 10 through the first guide structure, and the second winding portion 30 is guided and matched with the frame 10 through the second guide structure. In addition to being applicable to the above-mentioned situation, this embodiment is also applicable to the situation where the first winding portion 20 and the second winding portion 30 are driven and matched through a transmission mechanism, the spacing between the two is large, and the two move in opposite directions.

[0103] Through the above-mentioned method, the movement direction of the first winding part 20 and the second winding part 30 is constrained, thereby improving the stability between the components during the force transmission process, ensuring that when the force of the resistance source 70 is transmitted to the first transmission rope 50, the force fluctuation applied to the user's limbs remains within an acceptable range, and also avoiding the first winding part 20 and the second winding part 30 from interfering with the user due to the shaking relative to the frame 10, thereby reducing the risk of user injury.

[0104] In one embodiment, the frame 10 is provided with a guide portion, and correspondingly, a second guide portion 43 is provided between the first winding portion 20 and the second winding portion 30 through the above-mentioned connecting member 40 to achieve guiding cooperation between the first guide portion 13 and the second guide portion 43 .

[0105] In this embodiment, please refer to the attached Figure 1 , Figure 2-Figure 3 , Figure 6 At least two first guide portions 13 are provided on the frame 10 along the movement direction of the first winding portion 20 and the second winding portion 30. The first guide portions 13 are arranged at intervals to improve the guiding stability between the first winding portion 20, the second winding portion 30 and the frame 10.

[0106] Corresponding to the above, in an embodiment where the first winding portion 20 and the second winding portion 30 are fixed by a connecting member 40, a second guide portion 43 is provided on the outer side of the connecting member 40 for guiding and cooperating with the first guide portion 13, and the connecting member 40 is movably connected to the frame 10 with the first guide portion 13 through the second guide portion 43, that is, the frame 10 is guided and connected with the corresponding second guide portion 43 on the connecting member 40 through at least two first guide portions 13, so as to achieve the purpose of improving the movement stability of the first winding portion 20 and the second winding portion 30.

[0107] In the above embodiment, the first winding part 20 and the second winding part 30 are fixedly connected to improve the compactness of the structure. The first winding part 20 and the second winding part 30 are guided and matched with the frame 10 through the connecting member 40, which can avoid further adding a guiding structure to the first winding part 20 and the second winding part 30. While further improving the movement stability of the components, the number of material components is reduced, thereby achieving the purpose of improving the compactness of the structure.

[0108] According to the above scheme, exemplarily, in the case where there are two first guide portions 13, the connector 40 can be disposed between the two first guide portions 13, that is, the two first guide portions 13 are disposed on the left and right sides of the connector 40, and at the same time, the first winding portion 20 and the second winding portion 30 are disposed on the upper and lower sides of the connector 40, and correspondingly, second guide portions 43 are also disposed at both ends of the connector 40 for guiding and cooperating with the two first guide portions 13, respectively, to avoid interference between the first guide portion 13 and the first winding portion 20 and the second winding portion 30, and to ensure that the connector 40 as a whole will not shake too much relative to the frame 10, and that the connector 40 will not tilt when it is located on the first guide portion 13, thereby maintaining the stability of its movement process.

[0109] According to the above embodiment, the first guide portion 13 can be configured as a guide rod arranged along the movement direction of the first winding portion 20 and the second winding portion 30, and the opposite ends of the guide rod are connected to the frame 10 to ensure the stability of the guide rod. Correspondingly, the second guide portion 43 is a guide hole that is through-set on the outside of the connecting member 40, and the connecting member 40 can be slidably mounted on the guide rod through the guide hole, so that the center of gravity of the connecting member 40 on the frame 10 is easier to adjust, and, through the hole-axis sleeve method, the assembly strength between the connecting member 40 and the guide rod is also improved, thereby reducing the risk of the first winding portion 20 and the second winding portion 30 detaching from the frame 10.

[0110] Of course, this embodiment does not exclude the implementation of setting the guide rod on the connecting member 40 and opening a matching guide hole on the frame 10. However, in this embodiment, with the relative movement of the connecting member 40 and the frame 10, the guide rod will extend to the outside of the frame 10, which is not conducive to the space-saving design of the strength training equipment.

[0111] Please refer to the attached Figure 1-Figure 5 The strength training device also includes an adjustment frame 122, which is movably mounted on the frame 10 and can be movably adjusted relative to the frame 10. It can be understood that the adjustment frame 122 is located on the frame 10 and has a first state and a second state. When the adjustment frame 122 is in the first state, the adjustment frame 122 and the frame 10 are in a relatively fixed position state, and when the adjustment frame 122 is in the second state, the adjustment frame 122 can be moved relative to the frame 10, thereby adjusting the position of the adjustment frame 122 on the frame 10.

[0112] The first end of the first transmission rope 50 is fixed to the adjustment frame 122, and is fixedly connected to the frame 10 by being fixed to the adjustment frame 122. After the first transmission rope 50 passes through the first winding portion 20 from its first end to the second end and is wound around the first winding portion 20, the second end of the first transmission rope 50 is movably connected to the adjustment frame 122. When the user does not apply external force to the second end of the first transmission rope 50, the second end of the first transmission rope 50 remains retracted into the adjustment frame 122. During strength training, the user can pull the second end of the first transmission rope 50 to extend the second end of the first transmission rope 50 out of the adjustment frame 122. During this process, since the first end of the first transmission rope 50 is fixed on the adjustment frame 122, the first end and the second end of the first transmission rope 50 will drive the first winding portion 20 to move toward the second position, and then through the second winding portion 30 and the second transmission rope 60, a transmission relationship is established with the resistance source 70 in the above manner. That is, the first end and the second end of the first transmission rope 50 are both located on the adjustment frame 122, thereby forming a closed-loop structure on the frame 10. In this way, in the process of adjusting the position of the adjustment frame 122 on the frame 10, the positional relationship between the opposite ends of the first transmission rope 50 and the adjustment frame 122 remains unchanged, so as to ensure that the portion between the first end and the second end located on the frame 10 will not produce displacement relative to the frame 10, thereby avoiding the first transmission rope 50 from acting on the first winding portion 20 during the adjustment of the adjustment frame 122, keeping the position states of the first winding portion 20, the second winding portion 30 and the resistance source 70 unchanged, and facilitating the user to adjust the force application position.

[0113] In one embodiment, the second end of the first transmission rope 50 is provided with a driving member 53 for providing corresponding positions for the user to hold, step on, etc., and a limiting structure is arranged between the driving member 53 and the adjustment frame 122. The limiting structure between the driving member 53 and the adjustment frame 122 can limit the extreme position of the first transmission rope 50 in the direction close to the adjustment frame 122, so that in a non-strength training state (a state in which the user does not apply external force to the first transmission rope 50), the first transmission rope 50 can be maintained in the above-mentioned state of being retracted into the adjustment frame 122, ensuring that the initial state of the strength training equipment remains unchanged, thereby ensuring that it has a better strength training effect.

[0114] On the basis of the first transmission rope 50 being located on the frame 10 to form a closed loop structure, in an embodiment in which the resistance source 70 includes a drive motor 72, it is also possible to avoid pulling the drive motor 72 during adjustment of the adjustment frame 122, thereby effectively protecting the drive motor 72.

[0115] like Figure 2 , Figure 5As shown, in one embodiment, the limiting structure includes two limiting wheels 1224 relatively arranged on the adjusting frame 122, and a wire passing channel for the first transmission rope 50 to pass through is formed between the two limiting wheels 1224, and a limiting block 531 is arranged on the driving member 53. After passing through the wire passing channel between the two limiting wheels 1224, the first transmission member is connected with the limiting block 531. In this way, when the user does not apply external force to the driving member 53, the resistance source 70 pulls the transmission member through the second transmission rope 60, the second winding part 30, the first winding part 20 and the first transmission rope 50 in sequence to keep it in a state where its limiting block 531 is stuck between the two limiting wheels 1224, so as to achieve the above-mentioned purpose of driving the driving member 53 to reset and keep the driving member 53 close to the adjusting frame 122 under normal circumstances. During strength training, the user can apply a force to the driving member 53 to move in a direction away from the adjustment frame 122, so that the first transmission rope 50 is pulled out of the adjustment frame 122 along with the driving member 53. After resetting, the driving member 53 can be constrained to one side of the adjustment frame 122 to prevent the first transmission rope 50 from further retracting.

[0116] Corresponding to the above structure, the support frame 12 in the above frame 10 includes an adjusting rod 121. In one embodiment, the adjusting rod 121 is a rod body arranged along the moving direction of the first winding part 20 and the second winding part 30, so as to facilitate the arrangement of various transmission components on the support and improve the force transmission efficiency.

[0117] For example, when the first winding portion 20 and the second winding portion 30 are configured to move in the vertical direction, the adjusting rod 121 is also configured in the vertical direction, and when the first winding portion 20 and the second winding portion 30 are configured to move in the horizontal direction, the adjusting rod 121 is also configured in the horizontal direction to maintain a state parallel to the movement directions of the two. The adjusting frame 122 is movably disposed on the adjusting rod 121 and can move relative to the adjusting rod 121 along the length direction of the adjusting rod 121. The adjusting frame 122 is provided with a second locking portion 1223, and the adjusting frame 122 can be locked and unlocked with the adjusting rod 121 through the second locking portion 1223 and the first locking portion 1211. It can be understood that the movable matching structure between the adjusting rod 121 and the adjusting frame 122 can be any limiting structure in the current mechanical field that can constrain the movement direction of two relatively movable parts. For example, corresponding guide rails and sliding blocks can be respectively arranged between the adjusting rod 121 and the adjusting frame 122, or the adjusting frame 122 can be movably mounted on the adjusting rod 121.

[0118] The locking of the adjustment frame 122 and the adjustment rod 121 can be directly achieved through the cooperation of the first locking portion 1211 and the second locking portion 1223. For example, the first locking portion 1211 and the second locking portion 1223 are set as a locking groove and a locking block with compatible structures, or the first locking portion 1211 and the second locking portion 1223 are set as a card slot and a card block, etc.; in addition, the locking of the adjustment frame 122 and the adjustment rod 121 can also be achieved through an external locking component 80. In this embodiment, the locking component 80 is set to a structural form that is compatible with the first locking portion 1211 and the second locking portion 1223, so that when the adjustment frame 122 moves to a state where the second locking portion 1223 corresponds to the position of any first locking portion 1211, the first locking portion 1211 and the second locking portion 1223 are locked together through the locking component 80.

[0119] In the present embodiment, an adjustment hole compatible with the outer peripheral structure of the adjustment rod 121 is provided on the adjustment frame 122, and the adjustment frame 122 is movably mounted on the adjustment rod 121 through the adjustment hole. The adjustment rod 121 is provided with a plurality of first locking holes as the first locking portion 1211 arranged at intervals along its length direction, and a second locking hole connecting its exterior with the guide hole is provided on the adjustment frame 122. It should be noted that the position of the second locking hole needs to be staggered with the guide hole. In the process of adjusting the adjustment frame 122 on the adjustment rod 121 for adjustment, the second locking hole will be in a relative position with the first locking hole provided at the corresponding position of the adjustment rod 121 according to the position of the adjustment frame 122. At this time, the locking rod serving as the locking component 80 can be inserted into the second locking hole and the first locking hole in sequence to achieve locking of the adjustment frame 122 with the adjustment rod 121 at the corresponding position.

[0120] Please continue to refer to the attached Figure 2 , Figure 5 The adjustment frame 122 includes a first bracket 1221 and a second bracket 1222. The first bracket 1221 as a supporting body of the adjustment frame 122 can be movably installed on the adjustment rod 121, and the second bracket 1222 is used to constrain the second end of the first transmission rope 50. That is, in the above-mentioned embodiment of setting a limiting structure, the limiting wheel 1224 is used to be set on the second bracket 1222, and the second end of the first transmission rope 50 is supported by it, and the driving member 53 is normally limited to the second bracket 1222 through the limiting block 531.

[0121] Continuing with the above embodiment, the second bracket 1222 is rotatably arranged on the first bracket 1221, and the rotation axis of the second bracket 1222 on the first bracket 1221 is parallel to the adjusting rod 121. On the basis that the second end of the first transmission rope 50 is movably connected to the second bracket 1222, when the user is performing strength training, the second bracket 1222 can adaptively rotate relative to the first bracket 1221 in accordance with the direction of the external force supported by the driving member 53 by the user, so as to ensure to the greatest extent that the first transmission rope 50 and the second bracket 1222 remain in a relatively stable matching state, that is, to keep the first transmission rope 50 in a state of limiting matching with the limiting wheel 1224, thereby reducing interference between the first transmission rope 50 and other components, thereby effectively extending the service life of the first transmission rope 50.

[0122] In view of the above-mentioned embodiment, since the arrangement of the first transmission rope 50 on the frame 10 is relatively complicated, the following provides two embodiments that can be relatively independent or combined to make the arrangement of the first transmission rope 50 on the frame 10 more reasonable.

[0123] Taking the implementation example in which the adjustment rod 121 is arranged on the outside of the first winding part 20 and the second winding part 30, this arrangement can effectively provide effective protection for the corresponding transmission components and avoid interference between the adjustment rod 121 and the first winding part 20 and the second winding part 30.

[0124] At the same time, when the strength training equipment includes two groups of the above-mentioned structures, the two adjusting rods 121 are arranged at intervals to form an installation space for providing the first winding part 20 and the second winding part 30. The above-mentioned first winding part 20, connecting member 40, second winding part 30 and resistance source 70 and other components can be symmetrically arranged between the two adjusting rods 121. In this way, while ensuring that there is sufficient spacing between the two adjusting rods 121 to provide installation settings for related components, the spacing between the two adjusting rods 121 is also more reasonable, which is suitable for the user's arms or legs to hold or step on.

[0125] In one embodiment, a protective shell can be provided between the two adjustment rods 121 to cover a series of material components such as the first winding part 20, the second winding part 30, etc., so as to achieve the purpose of improving the aesthetics. At the same time, it can also effectively prevent foreign objects such as dust from directly contacting the transmission components inside the device, thereby extending the service life of the device. In addition, it also reduces the risk of user injury caused by mutual interference between the user and the transmission components.

[0126] At least one group of reversing components is also provided on the frame 10, and the reversing components are generally arranged between the two adjusting rods 121. The first transmission rope 50 can be wound around the first winding portion 20 and then further wound around the reversing components located between the adjusting rods 121, thereby realizing its own reversal on the frame 10, thereby making the layout of the first transmission rope 50 on the frame 10 more reasonable.

[0127] In one embodiment, a first reversing assembly is further provided on the frame 10 , and the first transmission rope 50 is sequentially wound around the first reversing assembly and the first winding portion 20 from its first end to its second end and then extends toward the adjustment frame 122 to achieve a fixed connection with the adjustment frame 122 .

[0128] In one embodiment, a second reversing assembly is further disposed on the frame 10 , and the first transmission rope 50 is sequentially wound around the second winding portion 30 and the second reversing assembly from the first end to the second end, and then movably connected to the adjustment frame 122 .

[0129] The first reversing component is used to reverse and constrain the portion of the first transmission rope 50 located between the first side of the first winding portion 20 and the adjusting frame 122, while the second reversing component is used to reverse and constrain the portion of the first transmission rope 50 located between the second side of the first winding portion 20 and the adjusting frame 122, that is, the path between the first end and the second end of the first transmission rope 50 is reasonably arranged by the above-mentioned first reversing component and the second reversing component to ensure that the first transmission rope 50 is located in the frame 10 and will not be entangled with each other, thereby affecting the normal operation of the equipment, and also to ensure that the first winding portion 20 and the first transmission rope 50 maintain a relatively high force transmission efficiency.

[0130] It can be understood that the above-mentioned first reversing assembly and second reversing assembly can be composed of multiple pulleys, and each pulley is provided with a groove arranged around its outer periphery for stabilizing the first transmission rope 50. On the basis of ensuring that the parts of the first transmission rope 50 located on the opposite sides of the first winding part 20 remain relatively parallel, each section of the first transmission rope 50 maintains a stable fit with the frame 10, reducing the shaking of the first transmission rope 50 during the interaction and movement with the first winding part 20, thereby improving the stability of the strength training equipment during strength training programs.

[0131] like Figure 1 , Figure 3As shown, in this example, a setting method of a first reversing component is provided, and the first reversing component includes a first pulley 14, a second pulley 15 and a third pulley 16. When the strength training device is in the assembled state, the first transmission rope 50 passes through the first pulley 14, the second pulley 15 and the third pulley 16 in sequence from its first end to the second end, and then is tangent to one side of the first winding portion 20 and is wound around the first winding portion 20, and finally extends out from the other side of the first winding portion 20.

[0132] Specifically, the first pulley 14 is fixedly arranged on the adjusting rod 121, so that after the first end of the first transmission rope 50 is connected to the adjusting frame 122 and it is wrapped around the first pulley 14, the first transmission rope 50 located between the adjusting frame 122 and the first pulley 14 can be arranged along the length direction of the adjusting rod 121, thereby improving the compactness between the first transmission rope 50 and the frame 10. Generally speaking, the first pulley 14 is arranged at one end of the adjusting rod 121 close to the supporting base 11 to avoid interference between the adjusting frame 122 and the first pulley 14 during the process of adjusting the position relative to the adjusting rod 121; the second pulley 15 is arranged between the first pulley 14 and the first winding portion 20, specifically close to the first winding portion 20. In an embodiment in which a guide rod is arranged on the frame 10, the second pulley 15 is arranged at a position between the first winding portion 20 and the second winding portion 30 The third pulley 16 is arranged on the outer guide rod to guide the first transmission rope 50 in the direction away from the support base 11; the third pulley 16 is arranged on the side of the second pulley 15 away from the support base 11. Specifically, the third pulley 16 can be located between the first winding portion 20 and the second pulley 15, so that the first transmission rope 50 can extend toward the third pulley 16 after being wound around the second pulley 15, and extend toward the first winding portion 20 after being wound around the third pulley 16, and cooperate with the second pulley 15 and the first winding portion 20 to ensure that the first transmission rope 50 parts on both sides of the third pulley 16 are set to be parallel to the guide rod, thereby improving the force transmission efficiency of the first transmission rope 50 and the first winding portion 20, while avoiding mutual interference between related components and the first transmission rope 50, so that the layout of the first transmission rope 50 on the frame 10 is more reasonable.

[0133] In this example, in addition to the above-mentioned adjustment rod 121 disposed on both sides of the support base 11, the support frame 12 also includes a top frame 123, wherein the top frame 123 and the support base 11 are respectively located at opposite ends of the adjustment rod 121, for ensuring that the adjustment rod 121 has high stability.

[0134] like Figure 1 , Figure 3As shown, in this example, a second reversing assembly is provided, the second reversing assembly includes a fourth pulley 17 and a fifth pulley 18, the fourth pulley 17 and the fifth pulley 18 are rotatably arranged on the top frame 123 at intervals, and in the assembled state of the strength training device, the first transmission rope 50 is in the direction from the first end to the second end thereof, after the first transmission rope 50 abuts against the first winding portion 20, and then abuts against the fourth pulley 17 and the fifth pulley 18 in sequence, and the first transmission rope 50 is in the direction from the first end to the second end thereof Under the support and reversing action of the wheel 18, it extends toward the adjustment frame 122, and the part of the first transmission rope 50 between the fourth pulley 17 and the fifth pulley 18 can be arranged along the setting direction of the top frame 123, ensuring a high degree of fit between the first transmission rope 50 and the frame 10. Finally, after the first transmission rope 50 passes through the fifth pulley 18, the first transmission rope 50 extends to the adjustment frame 122, passes through the wire channel formed between the two limiting wheels 1224 and is connected to the driving member 53.

[0135] Of course, the number of pulleys included in the first reversing assembly and the second reversing assembly, as well as the position of each pulley, can be determined according to strength training equipment of different structural forms, and this embodiment does not impose strict limitations on this.

[0136] In summary, this embodiment adopts a double-acting pulley mechanism formed by the cooperation of the first winding part 20 and the second winding part 30. On the basis of shortening the stroke of the resistance source 70 and ensuring that the strength training equipment saves space and is easy to use, the force output to the user's limbs is matched with the resistance source 70 on the equipment, ensuring that the strength training effect will not be reduced due to the attenuation and waste of resistance, thereby meeting the usage needs of different users.

[0137] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0138] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0139] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0140] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A strength training device, characterized in that: include: A frame (10), wherein the frame (10) is provided with a first winding portion (20) and a second winding portion (30) that can move synchronously; A first transmission rope (50) is wound around the first winding portion (20), a first end of the first transmission rope (50) is fixedly connected to the frame (10), and a second end of the first transmission rope (50) is configured to move relative to the frame (10) under the action of an external force; A second transmission rope (60) is wound around the second winding portion (30), one end of the second transmission rope (60) is fixedly connected to the frame (10), and the other end of the second transmission rope (60) is connected to a resistance source (70), and the resistance source (70) is arranged on the frame (10).

2. The strength training device according to claim 1, characterized in that: The first winding portion (20) is fixedly connected to the second winding portion (30).

3. The strength training device according to claim 2, characterized in that: A connecting piece (40) is provided between the first winding portion (20) and the second winding portion (30), and the first winding portion (20) and the second winding portion (30) are fixedly connected via the connecting piece (40); and A first winding space (41) is formed between the first winding portion (20) and the connecting member (40), and the first transmission rope (50) passes through the first winding space (41) and is wound around the first winding portion (20); and A second winding space (42) is formed between the second winding portion (30) and the connecting member (40), and the second transmission rope (60) passes through the second winding space (42) and abuts against the second winding portion (30).

4. The strength training device according to claim 3, characterized in that: The first winding portion (20) and the second winding portion (30) are both pulleys; The first wrapping portion (20) is rotatably mounted on a first side of the connecting member (40) via a first wheel seat (44); The second wrapping portion (30) is rotatably mounted on the second side of the connecting member (40) via a second wheel seat (45).

5. The strength training apparatus according to claim 1, characterized in that: The first winding portion (20) and the second winding portion (30) are arranged at intervals along their movement directions, and the first transmission rope (50) and the second transmission rope (60) are respectively wound around one side of the first winding portion (20) and the second winding portion (30) that is opposite to each other; Portions of the first transmission rope (50) located on opposite sides of the first winding portion (20) are arranged parallel to each other; The resistance source (70) is located on a side of the second winding portion (30) away from the first winding portion (20), and portions of the second transmission rope (60) located on opposite sides of the second winding portion (30) are arranged parallel to each other.

6. The strength training apparatus according to claim 1, characterized in that: The resistance source (70) comprises: A winding wheel (71) is rotatably arranged on the frame (10); one end of the second transmission rope (60) is connected to the winding wheel (71) and is at least partially wound around the winding wheel (71); A driving motor (72) is mounted on the frame (10) and is drivingly connected to the winding wheel (71). The driving motor (72) is used to apply a force to the winding wheel (71) to rotate in a direction of winding up the second transmission rope (60).

7. The strength training apparatus according to any one of claims 1 to 6, characterized in that: The first winding portion (20) and the second winding portion (30) are both guided and matched with the frame (10) through a first guiding structure; The first guide structure comprises at least two first guide portions (13) arranged along the movement direction of the first winding portion (20) and the second winding portion (30), and the first guide portions (13) are arranged at intervals on the frame (10); A connecting member (40) is provided between the first winding portion (20) and the second winding portion (30); the first winding portion (20) and the second winding portion (30) are fixedly connected via the connecting member (40); the connecting member (40) is provided between the first guide portions (13); and a second guide portion (43) which cooperates with the first guide portion (13) is provided on the outer side of the connecting member (40); the connecting member (40) is movably connected to the frame (10) via the second guide portion (43) and the first guide portion (13).

8. The strength training apparatus according to any one of claims 1 to 6, characterized in that: Also includes: An adjustment frame (122), the adjustment frame (122) being movably mounted on the frame (10) and being movably adjustable relative to the frame (10); The first end of the first transmission rope (50) is fixed to the adjustment frame (122), and the second end of the first transmission rope (50) is movably connected to the adjustment frame (122).

9. The strength training apparatus according to claim 8, characterized in that: The frame (10) comprises: An adjusting rod (121), wherein the adjusting rod (121) is provided with a plurality of first locking portions (1211) spaced apart along a length direction thereof; The adjustment frame (122) is movably arranged on the adjustment rod (121) and can move relative to the adjustment rod (121) along the length direction of the adjustment rod (121); a second locking portion (1223) is arranged on the adjustment frame (122); the adjustment frame (122) can be locked and unlocked with the adjustment rod (121) through the second locking portion (1223) and the first locking portion (1211).

10. The strength training apparatus according to claim 9, characterized in that: The adjustment frame (122) comprises: A first bracket (1221) is movably mounted on the adjusting rod (121); and A second bracket (1222) is rotatably disposed on the first bracket (1221), wherein a rotation axis of the second bracket (1222) located on the first bracket (1221) is parallel to the adjusting rod (121); The second end of the first transmission rope (50) is movably connected to the second bracket (1222).

11. The strength training apparatus according to claim 10, characterized in that: The adjusting rod (121) is arranged on the outside of the first winding portion (20) and the second winding portion (30); At least one set of reversing components is also arranged on the frame (10), and the first transmission rope (50) can be wound around the reversing components and the first winding portion (20).

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