Resistance trainer

Abstract

The invention relates to the field of fitness equipment, in particular to a resistance trainer which comprises a base, two training devices are symmetrically arranged on the base, each training device comprises a resistance part and a sliding part, each sliding part is slidably arranged on the base, and each resistance part comprises a first resistance wheel and a second resistance wheel. The first resistance wheel is connected with a first elastic piece which generates resistance to rotation of the first resistance wheel, the second resistance wheel is connected with a second elastic piece which generates resistance to rotation of the second resistance wheel, a pull strap is wound on the first resistance wheel, and the other end of the pull strap is connected with the sliding part of the same group; during conventional training, training can be carried out only by pulling a pull strap to overcome the resistance of the first resistance wheel, and when resistance needs to be increased, the second resistance wheel can pre-rotate by a certain angle to enable the second elastic part to be initially deformed and then connected with the first resistance wheel through a linkage structure; through the linkage structure design, the force for driving the sliding part can be adjusted in a multi-gear mode, and a user can adjust the force according to different training conditions.

Description

Technical Field

[0001] The invention relates to the field of fitness equipment, and in particular to a resistance training device. Background Art

[0002] In fitness training, the lower limbs need to be trained, among which sliding training is a typical training movement, that is, placing the foot on a pedal and overcoming a certain resistance to drive the pedal to move for training. However, the existing equipment has a single resistance adjustment method, most of which adjusts the resistance by adjusting the friction force, and some adjust the preload of the spring to achieve resistance adjustment, but the adjustment mode is single, the resistance adjustment is not linear enough, and the adjustment gears are relatively few, which is difficult to meet the needs of training. Summary of the invention

[0003] In order to solve the shortcomings of the prior art, such as a single adjustment mode, insufficient linearity in resistance adjustment, and a small number of adjustment gears, the present invention provides a resistance training device.

[0004] The technical solution of the present invention is: The present invention provides a resistance training device, comprising a resistance part, wherein the resistance part comprises a first resistance wheel and a second resistance wheel, wherein the first resistance wheel is connected to a first elastic member that generates resistance to its rotation, and the second resistance wheel is connected to a second elastic member that generates resistance to its rotation, and a tension belt is wound around the first resistance wheel, and the other end of the tension belt is a force-bearing end, and the first resistance wheel can be driven to rotate by applying force to the force-bearing end; The first resistance wheel and the second resistance wheel are connected via an opening and closing linkage structure. The second resistance wheel can be pre-rotated to a certain angle so that the second elastic member undergoes initial deformation and then is connected to the first resistance wheel via the linkage structure.

[0005] Furthermore, the linkage structure includes a connecting wheel, a combining part is arranged on the connecting wheel, an adjusting part is arranged on the second resistance wheel, and a connecting part cooperating with the combining part is arranged on the first resistance wheel. The combining part can be controlled by the adjusting part so that the combining part and the connecting part can be switched between the separated and combined states.

[0006] Furthermore, the connecting part includes a gear ring at one end of the first resistance wheel, the combining part includes an elastic extension part on the connecting wheel, the end of the extension part is provided with teeth that can cooperate with the gear ring, and the adjusting part is slidably arranged on the periphery of the second resistance wheel. By driving the adjusting part to a circumferential position of the second resistance wheel, the extension part is driven to deform, thereby realizing the engagement or separation of the teeth and the gear ring.

[0007] Furthermore, the extension part has an inclined surface that cooperates with the adjustment part. By driving the adjustment part in the circumferential direction of the second resistance wheel, the extension part can be driven to deform through cooperation with the inclined surface, thereby achieving engagement or separation of the teeth and the gear ring.

[0008] Furthermore, a position locking structure is arranged between the adjusting part and the second resistance wheel, and the position locking structure includes a protrusion on the adjusting part and a plurality of grooves formed on the second resistance wheel, and the protrusion engages with different grooves when the combining part and the connecting part are in the separated or combined states.

[0009] Furthermore, the adjusting part has a pushing part, the second resistance wheel is provided with a through groove matched with the pushing part, the adjusting part is slidably arranged on the inner ring of the second resistance wheel, and the pushing part leaks out of the through groove.

[0010] Furthermore, the resistance part includes a fixed shaft, on which a first resistance wheel and a second resistance wheel are rotatably arranged, a first accommodating chamber is arranged inside the first resistance wheel, a first elastic member is arranged inside the first accommodating chamber, the first elastic member is a coil spring, one end of the coil spring is fixedly connected to the inside of the first resistance wheel, and the other end of the coil spring is fixedly connected to the fixed shaft, a second accommodating chamber is arranged inside the second resistance wheel, a second elastic member is arranged in the second accommodating chamber, the second elastic member is a spring, the inner end of the spring is fixedly connected to the fixed shaft, and the outer end of the spring is fixedly connected to the inside of the second resistance wheel.

[0011] Furthermore, it also includes a base, and two sets of training devices are symmetrically arranged on the base. The training devices include a resistance part and a sliding part. The resistance part is fixed on the base, and the sliding part is slidably arranged on the base. The force-bearing end of the tension belt is connected to the sliding part.

[0012] Furthermore, it also includes a base, and two sets of training devices are symmetrically arranged on the base. The training devices include a resistance part and a sliding part. The resistance part is fixedly connected to the sliding part, and the sliding part is slidably arranged on the base. The force-bearing end of the tension belt is connected to the base.

[0013] Furthermore, the base includes a first base and a second base which are hinged to each other, and the two sets of training devices are respectively arranged on the first base and the second base, and the first base and the second base can be folded.

[0014] The beneficial effects achieved by the present invention are: During regular training, it is only necessary to pull the tension band to overcome the resistance of the first resistance wheel to perform training. When the user needs to increase the resistance, the second resistance wheel is connected to the first resistance wheel through the linkage structure. At this time, to drive the sliding part, it is necessary to increase the resistance applied to the second resistance wheel by the second elastic part. Therefore, a greater force is required to drive the sliding part to move, thereby increasing the intensity of training. The second resistance wheel can be pre-rotated to a certain angle to cause the second elastic part to undergo initial deformation and then be connected to the first resistance wheel through a linkage structure. The linkage structure design can adjust the force of driving the sliding part in multiple gears, and the user can adjust it by himself according to different training situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the base portion of the present invention after being folded; Figure 3 It is a side view structural schematic diagram of the present invention; Figure 4 is along Figure 3 AA line cross-sectional structural diagram; Figure 5 It is a schematic diagram of the first explosion structure of the internal structure of the resistance part of the present invention; Figure 6 It is a schematic diagram of the partial structure of the first resistance wheel and the second resistance wheel; Figure 7 is along Figure 6 BB line cross-sectional structure diagram; Figure 8 is along Figure 6 Schematic diagram of the CC line cross-sectional structure; Fig. 9 It is a schematic diagram of the internal structure of the first embodiment of the linkage structure; Fig.10 1 is a schematic diagram of the structure of the second resistance wheel; Fig.11 Schematic diagram of the second explosion structure of the internal structure of the resistance part; Fig.12 Schematic diagram of the third explosion structure of the internal structure of the resistance part; Fig.13 A schematic diagram of the connecting wheel structure of the first embodiment of the linkage structure; Fig.14 A partial structural diagram of embodiment 2 of the present invention. DETAILED DESCRIPTION

[0016] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0017] The invention provides a resistance training device.

[0018] like Figures 1 to 13As shown, a first embodiment of a resistance training device includes a base 1, on which two groups of training devices are symmetrically arranged, the training devices include a resistance part 2 and a sliding part 3, the sliding part is slidably arranged on the base, the resistance part includes a fixed shaft 4, on which a first resistance wheel 5 and a second resistance wheel 6 are rotatably arranged, the first resistance wheel is connected to the fixed shaft by a first elastic member 7, the second resistance wheel is connected to the fixed shaft by a second elastic member 8, the first resistance wheel and the second resistance wheel are connected by a linkage structure, a tension band is wound around the first resistance wheel, and the other end of the tension band is connected to the sliding part 3 of the same group, the user drives the sliding part to slide on the base through the lower limbs, for example, by stepping the foot on the sliding part, when the sliding part is away from the first resistance wheel, the first resistance wheel is driven to rotate through the tension band, at this time the first elastic member is deformed to apply resistance to the rotation of the first resistance wheel, at this time the user needs to overcome the resistance to drive the sliding part, so as to perform training.

[0019] When the user needs to increase the resistance, the second resistance wheel is connected to the first resistance wheel through the linkage structure. At this time, to drive the sliding part, it is necessary to increase the resistance applied to the second resistance wheel by the second elastic member. Therefore, a greater force is required to drive the sliding part to move, thereby increasing the intensity of training.

[0020] If the second resistance wheel is driven to rotate a certain angle first, that is, the second elastic member is deformed to a certain extent first, the second resistance wheel is connected to the first resistance wheel through the linkage structure. The force used by the user to drive the sliding part to move is different. Through this design, the force of driving the sliding part can be adjusted in multiple gears, and the user can adjust it by himself according to different training situations.

[0021] The linkage structure includes a connecting wheel 9 connected to the second resistance wheel, a combining part 10 is arranged on the connecting wheel, an adjusting part 11 is arranged on the second resistance wheel, and a connecting part 12 cooperating with the combining part is arranged on the first resistance wheel. The combining part can be controlled by the adjusting part so that the combining part and the connecting part can be switched between the two states of separation and connection.

[0022] In the first embodiment of the linkage structure mentioned above, the connecting part is the ring gear at one end of the first resistance wheel, the coupling part is an elastic extension part on the connecting wheel, the extension part is provided with teeth 19 that can cooperate with the ring gear, the adjusting part is slidably arranged on the periphery of the second resistance wheel, the extension part has an inclined surface that cooperates with the adjusting part, and the adjusting part is driven to move in the circumferential direction of the second resistance wheel. The extension part can be driven to deform by cooperating with the inclined surface, thereby realizing the engagement and separation of the teeth and the ring gear, thereby realizing the switching of the coupling part and the connecting part between the separation and combination states.

[0023] A position locking structure is arranged between the adjusting part and the second resistance wheel to ensure that the relative positions of the adjusting part and the second resistance wheel will not change automatically when the combining part and the connecting part are in the separated or combined states, thereby ensuring the stability of the combining part and the connecting part in the separated or combined states.

[0024] The position locking structure includes a protrusion 13 on the adjusting part and a plurality of grooves 14 formed on the second resistance wheel. When the combining part and the connecting part are in the separated or combined states, the protrusion engages with different grooves to ensure the stable position of the adjusting part.

[0025] The adjusting part has a pushing part 15, and the second resistance wheel is provided with a through groove 16 cooperating with the pushing part. The adjusting part is slidably arranged on the inner ring of the second resistance wheel, and the pushing part leaks out from the through groove. A locking mark is provided on one side of the through groove. When the pushing part moves to the locking mark, it represents that the combining part and the connecting part are in a combined state.

[0026] The second embodiment of the linkage structure is different from the first embodiment in that the joint part is an articulated block hingedly connected to the connecting wheel, and the angle between the articulated block and the connecting wheel can be adjusted. Similarly, the connecting part is a gear ring at one end of the first resistance wheel, and the articulated block is provided with teeth that can cooperate with the gear ring. The meshing and separation of the teeth and the gear ring can be achieved by adjusting the angle between the articulated block and the connecting wheel. This embodiment is not shown in the figure.

[0027] A first accommodating cavity is arranged inside the first resistance wheel, and a first elastic member is arranged inside the first accommodating cavity. The first elastic member is a coil spring, one end of the coil spring is fixedly connected to the inside of the first resistance wheel, and the other end of the coil spring is fixedly connected to the fixed shaft.

[0028] A second accommodating cavity is arranged inside the second resistance wheel, and a second elastic member is arranged inside the second accommodating cavity. The second elastic member is a spring, and the inner end of the spring is fixedly connected to the fixed shaft, and the outer end of the spring is fixedly connected to the inside of the second resistance wheel.

[0029] The resistance part also includes a protective cover 17, which accommodates the first resistance wheel, the second resistance wheel and the fixed shaft. The protective cover 17 has a window 18 corresponding to the position of the second resistance wheel and the adjustment part. The second resistance wheel can be manually driven to rotate through the window 18, and the adjustment part can also be driven to move to realize the switching of the combining part and the connecting part between the separation and combination states.

[0030] like Figure 2 As shown, the base 1 includes a first base 101 and a second base 102 which are hinged to each other. Two sets of training devices are respectively arranged on the first base and the second base. The first base and the second base can be folded for easy carrying and storage.

[0031] When the present invention is used, the user drives the sliding part to perform training. When the user needs to increase the resistance, the second resistance wheel is connected to the first resistance wheel through the linkage structure. At this time, when driving the sliding part, it is necessary to increase the resistance applied to the second resistance wheel by the second elastic member. Therefore, a greater force needs to be applied to drive the sliding part to move, thereby increasing the intensity of training. The second resistance wheel can be pre-rotated by a certain angle to cause the second elastic member to undergo initial deformation and then be connected to the first resistance wheel through the linkage structure. The linkage structure and adjustment method are unique designs. The force of driving the sliding part can be adjusted in multiple gears through the linkage structure design, and the user can adjust it by himself according to different training situations.

[0032] A second embodiment of a resistance training device, such as Fig.14 As shown, different from the first embodiment of a resistance trainer, the resistance part is fixed on the sliding part, a tension band is wound around the first resistance wheel, and the other end of the tension band is connected to the base. During the use of this design, the user can drive the sliding part and the resistance part to slide on the base at the same time.

[0033] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A resistance training device, characterized in that: The resistance part includes a first resistance wheel and a second resistance wheel, the first resistance wheel is connected to a first elastic member that generates resistance to its rotation, the second resistance wheel is connected to a second elastic member that generates resistance to its rotation, a tension belt is wound around the first resistance wheel, the other end of the tension belt is a force-bearing end, and the first resistance wheel can be driven to rotate by applying force to the force-bearing end; The first resistance wheel and the second resistance wheel are connected via an opening and closing linkage structure. The second resistance wheel can be pre-rotated to a certain angle so that the second elastic member undergoes initial deformation and then is connected to the first resistance wheel via the linkage structure.

2. A resistance training device according to claim 1, characterized in that: The linkage structure includes a connecting wheel, a combining part is arranged on the connecting wheel, an adjusting part is arranged on the second resistance wheel, and a connecting part cooperating with the combining part is arranged on the first resistance wheel. The combining part can be controlled by the adjusting part so that the combining part and the connecting part can be switched between the separation state and the connection state.

3. A resistance training device according to claim 2, characterized in that: The connecting part includes a gear ring at one end of the first resistance wheel, the combining part includes an elastic extension part on the connecting wheel, the end of the extension part is provided with teeth that can cooperate with the gear ring, the adjusting part is slidably arranged on the periphery of the second resistance wheel, and the extension part is driven to deform by driving the adjusting part in the circumferential position of the second resistance wheel, so that the teeth and the gear ring can be engaged or separated.

4. A resistance training device according to claim 3, characterized in that: The extension part has an inclined surface that cooperates with the adjustment part. By driving the adjustment part in the circumferential direction of the second resistance wheel, the extension part can be driven to deform through cooperation with the inclined surface, thereby achieving engagement or separation of the teeth and the gear ring.

5. A resistance training device according to claim 3, characterized in that: A position locking structure is arranged between the adjusting part and the second resistance wheel. The position locking structure comprises a protrusion on the adjusting part and a plurality of grooves on the second resistance wheel. When the combining part and the connecting part are in the separated or combined states, the protrusion is engaged with different grooves.

6. A resistance training device according to claim 5, characterized in that: The adjusting part has a pushing part, the second resistance wheel is provided with a through groove matched with the pushing part, the adjusting part is slidably arranged on the inner ring of the second resistance wheel, and the pushing part leaks out of the through groove.

7. The resistance training device according to claim 1, characterized in that: The resistance part includes a fixed shaft, on which a first resistance wheel and a second resistance wheel are rotatably arranged, a first accommodating cavity is arranged inside the first resistance wheel, a first elastic member is arranged inside the first accommodating cavity, the first elastic member is a coil spring, one end of the coil spring is fixedly connected to the inside of the first resistance wheel, and the other end of the coil spring is fixedly connected to the fixed shaft, a second accommodating cavity is arranged inside the second resistance wheel, a second elastic member is arranged in the second accommodating cavity, the second elastic member is a spring, the inner end of the spring is fixedly connected to the fixed shaft, and the outer end of the spring is fixedly connected to the inside of the second resistance wheel.

8. The resistance training device according to claim 1, characterized in that: It also includes a base, on which two sets of training devices are symmetrically arranged, the training devices include a resistance part and a sliding part, the resistance part is fixed on the base, the sliding part is slidably arranged on the base, and the force-bearing end of the tension belt is connected to the sliding part.

9. The resistance training device according to claim 1, characterized in that: It also includes a base, on which two sets of training devices are symmetrically arranged, the training devices include a resistance part and a sliding part, the resistance part is fixedly connected to the sliding part, the sliding part is slidably arranged on the base, and the force-bearing end of the tension belt is connected to the base.

10. A resistance training device according to claim 8 or 9, characterized in that: The base comprises a first base and a second base which are hinged to each other. Two sets of training devices are respectively arranged on the first base and the second base. The first base and the second base can be folded.

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