Resistance structure of fitness equipment, tension training device and fitness stool

Abstract

The utility model belongs to the technical field of fitness training equipment, and particularly relates to a resistance structure of fitness equipment, a tension training device and a fitness stool, which comprise a main frame, a gas spring component and a sliding block component, and a first fixed seat, a second fixed seat and a third fixed seat are arranged on the main frame at intervals along a first direction; the sliding block assembly is arranged between the second fixing base and the third fixing base in a sliding mode under pulling of the pull rope. The gas spring assembly comprises at least three gas springs, and the two ends of two gas springs are fixed to the first fixing base and the sliding block assembly respectively. One ends of the other gas springs are fixed on the first fixing seat, the other ends of the other gas springs are movably connected to the sliding block assembly, and the sliding block assembly is provided with limiting pieces used for limiting movement of the gas springs. The resistance structure is provided with a plurality of adjustable air springs, so that the resistance structure has a plurality of resistance gears, the effects of controlling and compressing different air springs and outputting different resistance values are realized, the output resistance values are stable and adjustable, and the resistance structure is suitable for various people.

Description

TECHNICAL FIELD

[0001] The utility model belongs to body -building training instrument technical field, specifically is a kind of resistance structure of body -building equipment, pull training device and body -building stool. BACKGROUND

[0002] With the development of society, people's demand for fitness is growing, and fitness equipment is also developing and innovating. In order to meet the needs of office workers at home for training, body-building stools have emerged as the times require. Body-building stools belong to household training equipment, and their functions are no longer limited to meeting the basic fitness needs of users, but are moving towards more humanization, multifunctionality, use comfort and storage rationality.

[0003] One of the functions of the body-building stool is upper limb strength training, which uses a pull training device. The device can be stored in the body-building stool when not in use, and can be unfolded and exposed outside for users to perform strength training when in use. One of the core structures for strength training is its resistance system. Integrating the resistance system into the body-building stool limits the size and weight of the product itself, which in turn affects the internal structure, requiring it to be simplified and reduced. However, this is contrary to the strength of the product achieved by the bird's arm, so the resistance system, in addition to having a basic resistance source, must also be light and small enough not to occupy too much structural space. In addition, in order to adapt to different training needs, the resistance of the resistance source output should be adjustable. SUMMARY

[0004] To solve the problems in the above background art, the utility model provides a resistance structure of body-building equipment, a pull training device and a body-building stool.

[0005] The first object of the utility model is to provide a resistance structure of body-building equipment, comprising a main frame, a gas spring assembly and a slider assembly, wherein:

[0006] The first fixed seat, the second fixed seat and the third fixed seat are arranged on the main frame along the first direction, and the first fixed seat and the second fixed seat are provided with a fixed pulley set, and the slider assembly is provided with a movable pulley set; both ends of the pull rope extend outward from the first fixed seat after passing through the movable pulley set and the fixed pulley set; the slider assembly is slidably arranged between the second fixed seat and the third fixed seat under the pull of the pull rope;

[0007] The gas spring assembly comprises at least three gas springs, two ends of two gas springs are fixed on the first fixed seat and the slider assembly respectively; one end of the remaining gas spring is fixed on the first fixed seat, and the other end is movably connected to the slider assembly, and the slider assembly is provided with a limiting piece for limiting the movement of the gas spring.

[0008] Further, the sliding block assembly comprises a sliding frame, the sliding frame is provided with a guide hole, and one end of the movably arranged gas spring is inserted into the guide hole.

[0009] When the limiting piece does not limit the gas spring, the sliding block assembly slides to make the gas spring axially move relative to the guide hole; when the limiting piece limits the gas spring, the sliding block assembly is fixed relative to the gas spring.

[0010] Further, the sliding frame is further provided with a limiting hole which is perpendicular to and communicates with the guide hole; when the pull rope is not pulled, the limiting piece is inserted into the limiting hole, so that the limiting piece abuts against the end of the gas spring.

[0011] Further, the sliding frame is further provided with a limiting hole which is perpendicular to and communicates with the guide hole; when the pull rope is not pulled, the limiting piece is inserted into the limiting hole, so that the limiting piece abuts against the end of the gas spring.

[0012] The pre-tightening module comprises a mounting column, a spring and a limiting ring, one end of the mounting column penetrates through the sliding frame and is fixedly connected with the mounting support, the limiting ring is fixed to the other end of the mounting column, and the spring is sleeved on the mounting column, one end of the spring abuts against the sliding frame, and the other end of the spring abuts against the limiting ring.

[0013] Further, the four gas springs are arranged in parallel, and the two gas springs located on the outer side are fixed to the sliding block assembly, and the two gas springs located on the inner side are movably arranged on the sliding block assembly.

[0014] The four gas springs have different resistance values, and the four gas springs make the resistance structure have four resistance gears.

[0015] Further, the second fixed seat and the third fixed seat are fixedly connected with a sliding rod, and the sliding block assembly is slidably arranged on the sliding rod.

[0016] Further, the second fixed seat is detachably connected with a gas spring pressing plate, and the gas spring is limited in the vertical direction between the second fixed seat and the gas spring pressing plate.

[0017] Further, the sliding block assembly is provided with one movable pulley set on each side, and the first fixed seat and the second fixed seat are provided with two fixed pulley sets corresponding to the movable pulley sets.

[0018] The movable pulley set comprises two coaxially arranged movable pulleys, the fixed pulley set on the second fixed seat comprises a first fixed pulley and a second fixed pulley corresponding to the two movable pulleys respectively, the axis line of the first fixed pulley is arranged perpendicularly to the axis line of the second fixed pulley; the fixed pulley set on the second fixed seat further comprises a first deflection wheel; and the fixed pulley set on the first fixed seat comprises a second deflection wheel.

[0019] The second object of the utility model is to provide a pulling force training device, including the resistance structure of any one of the above fitness equipment, further including a flying bird arm structure, the flying bird arm structure includes a third direction changing wheel, a fourth direction changing wheel and a flying bird arm, the pulling rope is stretched out after passing through the flying bird arm after the third direction changing wheel and the fourth direction changing wheel.

[0020] The flying bird arm is connected to the fourth direction changing wheel through an angle adjusting disc, a plurality of clamping holes are circumferentially arranged on the outer edge of the angle adjusting disc, and an angle limiting clamping plate is arranged on the outer side of the angle adjusting disc.

[0021] The third object of the utility model is to provide a fitness bench, including the resistance structure of any one of the above fitness equipment.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] (1) the resistance structure of the application includes at least three gas springs, wherein the two ends of two gas springs are fixed on the first fixed seat and the sliding block assembly respectively; one end of the remaining gas spring is fixed on the first fixed seat, and the other end is movably connected to the sliding block assembly; a limiting piece for limiting the movement of the gas spring is arranged on the sliding block assembly; the application uses a gas spring resistance source to replace a conventional elastic rope resistance source, so that the output of the resistance is more stable, the training effect is better, and the two ends of the two gas springs are arranged in a fixed structure to limit the initial resistance value of the resistance structure, the initial resistance value is minimum, and the initial resistance is not disturbed by the user; when the resistance needs to be increased, the movable gas spring is limited on the sliding block assembly through the limiting piece, so that the resistance is increased.

[0024] (2) the resistance structure of the application is provided with a plurality of adjustable gas springs, so that the resistance structure has a plurality of resistance gears, the different gas springs are controlled to realize the effect of outputting different resistance values, the output resistance value is stable and adjustable, and the resistance structure is suitable for a plurality of people.

[0025] (3) the resistance structure of the application is provided with a pre-tightening module on the sliding block assembly, including a mounting column, a spring and a limiting ring; when the pulling rope is retracted, the spring is first compressed by applying a pulling force to the mounting support through the movable pulley; as the retraction distance of the pulling rope increases, the spring is compressed to the maximum; then, the sliding frame starts to move and compress the gas spring to output the final force value; when the pulling rope is released, the force value of the gas spring is released earlier than that of the spring, and the spring is still in a compressed state, i.e. the pulling rope is in a tight state, so that the problem of easy pulling rope out of the pulley is effectively solved.

[0026] (4) the resistance structure of the application is reasonably arranged through the movable pulley and the fixed pulley, so that the pulling rope is stretched out after changing direction for 12 times, the rope length is increased, and the whole resistance structure is more space-saving. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 The overall structure diagram of the resistance structure provided by an embodiment of the present application is shown in the figure.

[0029] Figure 2 The overall structure diagram of the resistance structure provided by an embodiment of the present application is shown in the figure.

[0030] Figure 3 The overall structure diagram of the resistance structure provided by an embodiment of the present application is shown in the figure.

[0031] Figure 4 The overall structure diagram of the resistance structure provided by an embodiment of the present application is shown in the figure.

[0032] Figure 5 The overall structure diagram of the resistance structure provided by an embodiment of the present application is shown in the figure.

[0033] Figure 6 The overall structure diagram of the resistance structure provided by an embodiment of the present application is shown in the figure.

[0034] Figure 7 The overall structure diagram of the resistance structure provided by an embodiment of the present application is shown in the figure. Figure 6 The overall structure diagram of the resistance structure provided by an embodiment of the present application is shown in the figure.

[0035] Wherein: 1-main frame, 11-first fixed seat, 12-second fixed seat, 121-air spring plate, 13-third fixed seat, 14-fixed edge pipe, 2-air spring assembly, 21-1st air spring, 22-2nd air spring, 23-3rd air spring, 24-4th air spring, 3-sliding block assembly, 31-sliding frame, 311-guide hole, 312-limiting hole, 3121-2nd limiting hole, 3122-3rd limiting hole, 32-sliding sleeve, 4-limiting piece, 5-moving pulley set, 51-moving pulley, 511-first moving pulley, 512-second moving pulley, 52-installation support, 6-pre-tightening module, 61-installation column, 62-spring, 63-limiting ring, 7-sliding rod, 8-fixed pulley set, 81-first fixed pulley, 82-second fixed pulley, 83-first direction-changing wheel, 84-second direction-changing wheel, 9-flying bird arm structure, 91-third direction-changing wheel, 92-fourth direction-changing wheel, 93-flying bird arm, 94-angle adjusting disc, 941-socket, 95-angle limiting clamping plate, 10-pulling rope. DETAILED DESCRIPTION

[0036] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] The following is in conjunction with the appendix Figure 1 To be continued Figure 7 The present invention will be described in detail with specific embodiments.

[0038] See Figures 1 to 7 This utility model provides a resistance structure for fitness equipment, which can be integrated into fitness equipment with resistance training functions, such as a home training bench, to facilitate resistance training at home, but is not limited thereto. The resistance structure of this application includes a main frame 1, a gas spring assembly 2, and a slider assembly 3, wherein: the main frame 1 provides support and installation for the resistance structure. This application does not specifically limit the shape of the main frame 1, which can be rectangular, square, trapezoidal, or other irregular shapes, but is not limited thereto. This application uses a rectangular shape as an example for the description, and defines the length direction of the rectangular shape as the first direction and the width direction as the second direction.

[0039] The main frame 1 is provided with a first fixed seat 11, a second fixed seat 12 and a third fixed seat 13 spaced apart along a first direction. The first fixed seat 11 and the second fixed seat 12 are each provided with a fixed pulley group 8, and the slider assembly 3 is provided with a movable pulley group 5. The two ends of the pull rope 10 pass over the movable pulley group 5 and the fixed pulley group 8 respectively and extend outward from the first fixed seat 11. The slider assembly 3 is slidably disposed between the second fixed seat 12 and the third fixed seat 13 under the pull of the pull rope 10. For example, the main frame 1 includes two fixed side tubes 14 arranged in parallel. The two ends of the first fixed seat 11, the second fixed seat 12 and the third fixed seat 13 are respectively connected to the fixed side tubes 14 by welding.

[0040] The gas spring assembly 2 comprises at least three gas springs, two ends of two gas springs are fixed on the first fixed seat 11 and the sliding block assembly 3 respectively, one end of the remaining gas spring is fixed on the first fixed seat 11, and the other end is movably connected to the sliding block assembly 3, the sliding block assembly 3 is provided with a limiting piece 4 for limiting the movement of the gas spring, and the application does not limit the fixing mode of the gas spring and the first fixed seat 11 and the sliding block assembly 3, for example, the first fixed seat 11 is provided with a U-shaped groove corresponding to the gas spring, one end of the gas spring is fixed in the U-shaped groove through a nut, and the sliding block assembly 3 is provided with a mounting hole, one end of the gas spring passes through the mounting hole and is fixed through a nut. The gas spring used in the application can be an industrial accessory for buffering, which works as follows: inert gas or oil-gas mixture is filled in a closed pressure cylinder, the pressure in the cavity is several or dozens of times higher than the atmospheric pressure, the movement of the piston rod is realized by using the pressure difference caused by the smaller cross-sectional area of the piston rod than the cross-sectional area of the piston. Because of the fundamental difference from the principle of ordinary springs, the moving speed of the gas spring is relatively slow, the output resistance value is stable, and the service life is longer.

[0041] It can be known that different age groups of users or different body types of users need different resistance during training, and if the resistance cannot be adjusted, the use of the fitness equipment is limited. In the application, the gas spring assembly 2 is ingeniously divided into two groups, one end of one group of gas springs is fixed on the first fixed seat 11 and the other end is fixed on the sliding block assembly 3, and the other end of the other group of gas springs is fixed on the first fixed seat 11 and movably arranged on the sliding block assembly 3, and each movably arranged gas spring is matched with a limiting piece 4. When the resistance needs to be increased, one or more gas springs are selected according to the needs, and the limiting piece 4 is used to limit the gas spring on the sliding block assembly 3, thereby increasing the resistance during training. When the pull rope 10 pulls the sliding block assembly 3 towards the second fixed seat 12, the sliding block assembly 3 exerts pressure on the piston rod of the gas spring, the piston rod extrudes the gas in the pressure cylinder, and the movement of the sliding block assembly 3 is realized. The more gas springs participating in resistance, the greater the resistance, and the greater the pulling force required to overcome the resistance.

[0042] The application uses the air spring resistance source to replace the conventional elastic rope resistance source, so that the resistance output is more stable, the training effect is better, and the two ends of the two air springs are arranged in a fixed structure, so that the initial resistance value of the resistance structure is limited, the initial resistance value is minimum, and the initial resistance is not disturbed by the user; when the resistance needs to be increased, the movable air spring is limited on the sliding block assembly 3 through the limiting piece 4, so that the resistance is increased. It should be noted that the initial resistance value is realized by the fixed air spring, and the user cannot adjust the initial resistance value. The application is described by taking two air springs as an example to limit the initial resistance value. The two air springs are arranged on the two sides of the sliding block assembly, so that the sliding block assembly uniformly applies pressure to the air springs. Of course, if one fixed air spring is arranged, the initial resistance value can also be limited. If the resistance value of the air spring is relatively large, the resistance value equivalent to two air springs can be realized.

[0043] In some embodiments, referring to Figure 4 The sliding block assembly 3 includes a sliding frame 31, the sliding frame 31 is provided with a guide hole 311, and one end of the movable air spring is inserted into the guide hole 311; when the air spring is not limited by the limiting piece 4, the sliding block assembly 3 slides to make the air spring move axially relative to the guide hole 311. It can also be understood that the sliding frame 31 moves axially along the piston rod of the air spring through the guide hole 311; when the air spring is limited by the limiting piece 4, the sliding block assembly 3 is fixed relative to the air spring, and the sliding frame 31 slides to press the piston rod of the air spring. The guide hole 311 in the application has a certain length in the axial direction, and when no pulling force is applied to the pulling rope 10, one end of the air spring is located in the guide hole 311 and does not protrude out of the guide hole 311. When the pulling rope 10 is pulled to make the sliding frame 31 slide, one end of the air spring protrudes out of the guide hole 311. The shape of the guide hole 311 is not limited in the embodiment, for example, the cross section of the guide hole 311 can be circular, polygonal, trapezoidal, etc. Preferably, the shape of the guide hole 311 matches the shape of the piston rod of the air spring. Usually, the piston rod is circular, so the guide hole is preferably circular. The matching of the two can realize the stable axial movement of the unused air spring.

[0044] In some embodiments, the sliding frame 31 is further provided with a limiting hole 312 perpendicular to and communicating with the guide hole 311, and the limiting hole 312 is used for matching with the limiting piece 4; when the pulling rope 10 is not pulled or the resistance needs to be increased, the limiting piece 4 is inserted into the limiting hole 312, so that the limiting piece 312 abuts against the end of the air spring. Then the air spring will participate in the resistance during the pulling training. When the resistance does not need to be increased or only needs to be increased by a part, the air spring that does not participate in the resistance can be detached by the limiting piece 4 abutting against the end thereof. Preferably, the limiting piece 4 in the application is a bolt, and the limiting hole 312 is exposed to the place where the user can see, so as to facilitate operation.

[0045] In some embodiments, referring to Figure 2 The four gas springs are arranged in parallel, and are respectively No. 1 gas spring 21, No. 2 gas spring 22, No. 3 gas spring 23, and No. 4 gas spring 24. The two ends of No. 1 gas spring 21 and No. 4 gas spring 24 are fixed on first fixed seat 11 and sliding frame 31 respectively, and are arranged symmetrically along the second direction. One end of No. 2 gas spring 22 and No. 3 gas spring 23 is fixed on first fixed seat 11, and the other end is movably arranged in guide hole 311 of sliding frame 31. The corresponding limiting holes 312 of No. 2 gas spring 23 and No. 3 gas spring 23 are respectively No. 2 limiting hole 3121 and No. 3 limiting hole 3122. The resistance values of the other four gas springs are different, so that the four gas springs divide the resistance structure into four resistance gears, and then output different resistance value effects. For example, the first gear is the initial resistance, and the force value is the smallest, and is not adjusted by the user intervention. When the shrinkable rope is contracted, sliding block assembly 3 moves in the direction of second fixed seat 12 to compress No. 1 gas spring 21 and No. 4 gas spring 24. The resistance value of the second gear is relatively increased. Specifically, limiting piece 4 is inserted into No. 2 limiting hole 3121 to block the end of the piston rod of No. 2 gas spring 22. When the shrinkable rope 10 is contracted, sliding block assembly 3 moves in the direction of second fixed seat 12 to compress No. 1 gas spring 21, No. 2 gas spring 22 and No. 4 gas spring 24. The resistance value of the second gear is further increased. Specifically, limiting piece 4 is inserted into No. 3 limiting hole 3122 to block the end of the piston rod of No. 3 gas spring 23. When the shrinkable rope 10 is contracted, sliding block assembly 3 moves in the direction of second fixed seat 12 to compress No. 1 gas spring 21, No. 3 gas spring 23 and No. 4 gas spring 24. The resistance value of the fourth gear is further increased. Specifically, limiting piece 4 is inserted into No. 2 limiting hole 3121 and No. 3 limiting hole 3122 to block the ends of the piston rods of No. 2 gas spring 22 and No. 3 gas spring 23. When the shrinkable rope 10 is contracted, sliding block assembly 3 moves in the direction of second fixed seat 12 to compress No. 1 gas spring 21, No. 2 gas spring 22, No. 3 gas spring 23 and No. 4 gas spring 24.

[0046] It should be noted that in the present application, by arranging multiple adjustable gas springs, different gas springs are controlled to be compressed, thereby outputting different resistance value effects. The output resistance value is not only stable, but also adjustable in size, and is suitable for a variety of people.

[0047] In some embodiments, referring to Figure 4The two sides of the sliding frame 31 are respectively provided with a movable pulley set 5, the movable pulley set 5 comprises at least one movable pulley 51 and a mounting bracket 52 for mounting the movable pulley 51, and the mounting bracket 52 is arranged on the sliding frame 31 through a pre-tightening module 6; the pre-tightening module 6 comprises a mounting column 61, a spring 62 and a limiting block ring 63, one end of the mounting column 61 is fixedly connected with the mounting bracket 52 through the sliding frame 31, the limiting block ring 63 is fixed on the other end of the mounting column 61, the spring 62 is sleeved on the mounting column 61, one end of the spring 62 abuts against the sliding frame 31, and the other end of the spring 62 abuts against the limiting block ring 63; the limiting block ring 63 can be selected as a nut, and a thread is formed in one end of the mounting column 31 and is screwed with the limiting block ring 63. It can be understood that grooves are arranged on the movable pulley and the fixed pulley to cooperate with the pull rope 10, so as to prevent the pull rope 10 from being pulled out of the pulley; when the gas spring is not compressed, the pull rope 10 is in a relaxed state and is easy to be pulled out of the groove, therefore, the pre-tightening module 6 is arranged, and the force value of the spring is smaller than that of any gas spring; when the pull rope 10 is retracted, the mounting bracket 52 is first subjected to a pulling force through the movable pulley 51, so that the spring 62 is compressed, along with the increase of the retraction distance of the pull rope 10, the spring 62 is compressed to the maximum, and then the sliding frame 31 starts to move to compress the gas spring, so that the final force value is output. When the pull rope 10 is released, the force value of the gas spring is released earlier than that of the spring 62, and the spring 62 is still in a compressed state, that is, the pull rope 10 is in a tight state, so that the problem that the pull rope 10 is easy to be pulled out of the pulley is finally solved.

[0048] In some embodiments, referring to Figure 1 and Figure 2 The second fixed seat 12 and the third fixed seat 13 are fixedly connected with a sliding rod 7, the sliding rod 7 has two sliding rods arranged on the two sides of the sliding frame 31, the sliding frame 31 is fixedly connected with a sliding sleeve 32 matched with the sliding rod 7, and the sliding block assembly 3 is slidably arranged on the sliding rod 7 through the sliding sleeve 32. The sliding rod 7 provides guidance for the sliding of the sliding block assembly 3 and guarantees the stability of the entire compression process.

[0049] In some embodiments, referring to Figure 2 The second fixed seat 12 is detachably connected with a gas spring pressing plate 121, and the gas spring is limited in the vertical direction between the second fixed seat 12 and the gas spring pressing plate 121. The arrangement of the gas spring pressing plate 121 further guarantees the stability of the compression process of the gas spring. Since the gas spring has a certain length, if only the two ends of the gas spring are limited, the tension in the compression process is too large, which causes the deformation of the gas spring and affects the training effect. The gas spring pressing plate 121 arranged in the middle part of the gas spring guarantees the stability of the entire compression process.

[0050] In some embodiments, referring to Figure 5, two movable pulley sets 5 are arranged on two sides of the slider assembly 3 respectively, two fixed pulley sets 8 corresponding to the movable pulley sets 5 are arranged on the first fixed seat 11 and the second fixed seat 12 respectively; it can be known that two hands of a user hold two ends of the pull rope 10 respectively during the process of the pull training, and the two hands pull the pull rope 10 simultaneously, the pull rope 10 is stretched outwards to overcome the resistance, and thus it can be known that the pull rope 10 is arranged symmetrically inside the resistance structure. The winding direction of the pull rope is described below by taking one side as an example.

[0051] Each movable pulley set 5 includes two coaxially arranged movable pulleys 51, which are a first movable pulley 511 and a second movable pulley 512 respectively, the fixed pulley set 8 on the second fixed seat 12 includes a first fixed pulley 81 and a second fixed pulley 82 corresponding to the two movable pulleys 51 respectively, the axis of the first fixed pulley 81 is arranged perpendicularly to the axis of the second fixed pulley 82, and the axis of the second fixed pulley 82 is parallel to the axes of the two movable pulleys 51; the fixed pulley set 8 on the second fixed seat 12 further includes a first change direction wheel set arranged at the upper end of the second fixed seat 12, the first change direction wheel set includes two first change direction wheels 53 having axes parallel to the axis of the first fixed pulley 81; the fixed pulley set 8 on the first fixed seat 11 includes a second change direction wheel 84.

[0052] One end of the pull rope 10 is wound around the first movable pulley 511 after being changed direction for the first time from the first fixed pulley 81, is wound around the second fixed pulley 82 after being changed direction for the second time from the first movable pulley 511, is wound around the second movable pulley 512 after being changed direction for the third time from the second fixed pulley 82, is wound around the first change direction wheel 83 after being changed direction for the fourth time from the second movable pulley 512, and is wound around the second change direction wheel 84 after being changed direction for the fifth time from the first change direction wheel 83 to change direction for the sixth time; thus, the pull rope 10 is stretched out after being changed direction for a total of 12 times, the rope length is increased, and the whole resistance structure is more space-saving.

[0053] In use, the user acts on two ends of the pull rope 10 with two hands to control the length of the pull rope, the pull rope 10 drives the slider assembly 3 to move reciprocally between the second fixed seat 12 and the third fixed seat 13, and then the gas spring assembly 2 is compressed or released, and finally the training effect is achieved; the resistance value of the whole action process of the gas spring is consistent compared with the elastic rope in the prior art, the rope length is increased by the arrangement of the movable pulley set, and the space required by the fitness equipment is saved.

[0054] Referring to Figure 6 and Figure 7The utility model also provides a kind of tension training device, including the resistance structure of any one of the above fitness equipment, still include fly bird arm structure 9, fly bird arm structure 9 includes third direction-changing wheel 91, fourth direction-changing wheel 92 and fly bird arm 93, pull rope 10 is stretched out after resistance structure, after third direction-changing wheel 91 and fourth direction-changing wheel 92, after fly bird arm 93, stretch out;Fly bird arm 93 is connected on fourth direction-changing wheel 92 by angle adjusting disc 94, multiple bayonet 941 are arranged in the circumference of the outer edge of angle adjusting disc 94, angle limiting clamping plate 95 is arranged on the outside of angle adjusting disc 94, angle limiting clamping plate 95 can be clamped in any one bayonet 941, and then realize the limiting fixation of different angles of fly bird arm 93.User can adjust the angle of fly bird arm 93 outward unfolding according to the demand of training in use process, for example, fly bird arm 93 can outward unfold 30 °, 60 °, 90 °, 120 °, 150 °, 180 ° Angle, but not limited to this.The tension training device provided in the application adopts all technical solutions of all embodiments of the above resistance structure, so it has at least all beneficial effects brought by the technical solutions of the embodiments of the above resistance structure, which will not be repeated here.

[0055] The utility model also provides a kind of fitness stool, including the resistance structure of any one of the above fitness equipment.The fitness stool provided in the application adopts all technical solutions of all embodiments of the above resistance structure, so it has at least all beneficial effects brought by the technical solutions of the embodiments of the above resistance structure, which will not be repeated here.

[0056] The above is further described to the utility model by means of specific embodiment, but it should be understood that, here specific description, should not be understood as the limitation of the essence and scope of the utility model, various modifications made to the above embodiment by ordinary skilled in the art after reading this specification, all belong to the range of the utility model.

Claims

1. A resistance structure for fitness equipment, characterized in that, Includes the main frame, gas spring assembly, and slider assembly, wherein: The main frame is provided with a first fixed seat, a second fixed seat and a third fixed seat at intervals along a first direction. The first fixed seat and the second fixed seat are each provided with a fixed pulley group, and the slider assembly is provided with a movable pulley group. The two ends of the pull rope pass over the movable pulley group and the fixed pulley group respectively and extend outward from the first fixed seat. The slider assembly is slidably disposed between the second fixed seat and the third fixed seat under the pull of the pull rope. The gas spring assembly includes at least three gas springs, two of which are fixed at both ends to the first fixed base and the slider assembly, respectively; one end of the remaining gas springs is fixed to the first fixed base, and the other end is movably connected to the slider assembly, which is provided with a limiting member for restricting the movement of the gas springs.

2. The resistance structure of the fitness equipment according to claim 1, characterized in that, The slider assembly includes a sliding frame with a guide hole, and one end of the movably disposed gas spring is inserted into the guide hole. When the limiting member does not restrict the gas spring, the slider assembly slides to cause the gas spring to move axially relative to the guide hole; when the limiting member restricts the gas spring, the slider assembly and the gas spring are fixed relative to each other.

3. The resistance structure of the fitness equipment according to claim 2, characterized in that, The sliding frame is also provided with a limiting hole that is perpendicular to and communicates with the guide hole; when the pull rope is not pulled, the limiting member is inserted into the limiting hole, so that the limiting member abuts against the end of the gas spring.

4. The resistance structure of the fitness equipment according to claim 2, characterized in that, The sliding frame is provided with a movable pulley group on each side. The movable pulley group includes at least one movable pulley and a mounting bracket for mounting the movable pulley. The mounting bracket is set on the sliding frame through a pre-tightening module. The pre-tightening module includes a mounting post, a spring, and a limiting ring. One end of the mounting post passes through the sliding frame and is fixedly connected to the mounting bracket. The limiting ring is fixed to the other end of the mounting post. The spring is fitted onto the mounting post, with one end abutting against the sliding frame and the other end abutting against the limiting ring.

5. The resistance structure of the fitness equipment according to claim 1, characterized in that, Four gas springs are arranged in parallel, with the two outer gas springs fixed to the slider assembly and the two inner gas springs movably mounted on the slider assembly. The four gas springs have different resistance values, and the four gas springs give the resistance structure four resistance levels.

6. The resistance structure of the fitness equipment according to claim 1, characterized in that, A slide rod is fixed between the second fixed seat and the third fixed seat, and the slider assembly is slidably mounted on the slide rod.

7. The resistance structure of the fitness equipment according to claim 1, characterized in that, A gas spring pressure plate is detachably connected to the second fixed base, and the gas spring is vertically limited between the second fixed base and the gas spring pressure plate.

8. The resistance structure of the fitness equipment according to claim 1, characterized in that, The slider assembly is provided with a movable pulley group on each side, and the first fixed base and the second fixed base are provided with two fixed pulley groups respectively corresponding to the movable pulley groups; The movable pulley group includes two coaxially arranged movable pulleys, and the fixed pulley group on the second fixed base includes a first fixed pulley and a second fixed pulley corresponding to the two movable pulleys respectively. The axis of the first fixed pulley is perpendicular to the axis of the second fixed pulley. The fixed pulley group on the second fixed base also includes a first reversing wheel. The fixed pulley group on the first fixed base includes a second reversing wheel.

9. A resistance training device, comprising the resistance structure of the fitness equipment according to any one of claims 1-8, characterized in that, It also includes a bird arm structure, which includes a third directional wheel, a fourth directional wheel and a bird arm. The pull rope extends from the resistance structure, passes through the third directional wheel and the fourth directional wheel, passes through the bird arm and then extends out. The bird arm is connected to the fourth directional wheel via an angle adjustment disc. The outer edge of the angle adjustment disc is provided with multiple slots, and an angle limiting plate is provided on the outer side of the angle adjustment disc. The angle limiting plate can be engaged in any of the slots.

10. A fitness bench, characterized in that, The resistance structure of the fitness equipment as described in any one of claims 1-8.

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