Tension body builder

Abstract

The invention relates to the technical field of fitness equipment, in particular to a tension fitness equipment, which is characterized in that a tension line extends along a track, is fixed on an end pulley at the other end of the track after winding an end pulley at one end of the track, and is matched with a movable pulley through two fixed pulleys of an output component, and the stress of the tension line is half of the training tension of a user; besides, the length of the tension line cannot be changed when the mounting position of the output assembly on the track is changed, so that the training intensity of the user cannot be changed along with the change of the position, and a good training posture and sufficient motion space are ensured.

Description

Technical Field

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

[0002] As a relatively common fitness equipment, a tensile fitness device winds a tensile wire through a wire winding mechanism and applies a tensile force to the tensile wire, that is, the resistance during the user's training. Since the tensile force output by the wire winding mechanism to the tensile wire changes with the length of the tensile wire, for a tensile fitness device with a traditional structure, as the user changes the position of the end of the tensile wire, the resistance during training changes. Therefore, only when the end position of the tensile wire is in a specific area can the training intensity match the user's needs. When the user trains in this specific area, there may be problems such as poor training postures or limited movement space, and it is necessary to frequently adjust the gear of the wire winding mechanism to ensure a good training posture and sufficient movement space. In addition, the tensile wire of the traditional structure directly bears a tensile force equal to the training intensity, and the probability of fatigue damage is relatively high, affecting the service life. Summary of the Invention

[0003] The purpose of the present invention is to provide a tensile fitness device to solve the problems that the resistance during training of the existing tensile fitness device changes with position and the tensile wire is subjected to a high force.

[0004] The present invention provides a tensile fitness device, including a support assembly, a wire winding mechanism and an output assembly. The support assembly includes a frame and two tracks. The frame includes a cross beam and two parallel longitudinal beams. The two ends of the cross beam are respectively fixedly connected to the two longitudinal beams. The two tracks are respectively fixedly connected to the two longitudinal beams. End pulleys are connected to both ends of the tracks. The wire winding mechanism is used for winding the tensile wire and providing a tensile force to the tensile wire. The tensile wire extends along the track. The output assembly includes a housing, a movable pulley and two fixed pulleys. The housing is detachably connected to the track. The two fixed pulleys are rotatably arranged on the housing. The movable pulley is located between the two fixed pulleys. A handle is connected to the axle of the movable pulley. The tensile wire is sequentially wound around one of the end pulleys, one of the fixed pulleys, the movable pulley and the other fixed pulley and then fixedly connected to the other end pulley.

[0005] As a preferred technical solution of the tensile fitness device, the output assembly further includes a positioning member. The housing can slide along the track and is detachably connected to the track through the positioning member.

[0006] As a preferred technical solution of the tensile fitness device, a track groove is provided on the outer side of the track. A first rolling wheel and a second rolling wheel are rotatably connected to the housing. The diameters of the first rolling wheel and the second rolling wheel are both smaller than the width of the track groove. The first rolling wheel is used to roll on one side wall of the track groove, and the second rolling wheel is used to roll on the other side wall of the track groove.

[0007] As a preferred technical solution of the tensile fitness device, limiting protrusions are provided on both side walls of the track groove. A first groove is provided on the outer edge of the first rolling wheel and is matched with one of the limiting protrusions; a second groove is provided on the outer edge of the second rolling wheel and is matched with the other limiting protrusion.

[0008] As a preferred technical solution of the tensile fitness device, a positioning hole is formed in the bottom wall of the track groove, and the positioning member can be inserted into the positioning hole to limit the sliding of the housing along the track.

[0009] As a preferred technical solution of the tensile fitness device, the track is of a C-shaped structure or an L-shaped structure, and a reversing wheel is provided at the corner thereof. The tensile wire is wound around the reversing wheel for reversing.

[0010] As a preferred technical solution of the tensile fitness device, the track includes a first track, a second track and a third track. The first track is fixedly connected to the lower end of the longitudinal beam, the third track is fixedly connected to the upper end of the longitudinal beam, both ends of the second track are respectively fixedly connected to the first track and the third track, and the second track is arranged at an obtuse angle with the first track. The output components are provided in three numbers, and the three output components are respectively slidably arranged on the first track, the second track and the third track.

[0011] As a preferred technical solution of the tensile fitness device, the tensile fitness device further includes a pedal. A support portion is provided inside the first track. The pedal is arranged between the two first tracks and is fixedly connected to the support portions of the two first tracks on both sides respectively. The upper surface of the pedal is flush with the upper surface of the first track.

[0012] As a preferred technical solution of the tensile fitness device, a wire passing groove is provided at the bottom of the housing. The wire passing groove extends along the length direction of the housing, and the wire passing groove is used to accommodate the tensile wire.

[0013] As a preferred technical solution of the tensile fitness device, the output component further includes four wire pressing wheels. The four wire pressing wheels are divided into two groups and are respectively arranged at both ends of the housing. The outer edges of the two wire pressing wheels in each group are spaced apart, and the tensile wire passes through between the outer edges of the two wire pressing wheels.

[0014] The beneficial effects of the present invention are as follows:

[0015] The present invention provides a tensile fitness device. The tensile wire extends along the track, winds around the end pulley at one end of the track, and is fixed to the end pulley at the other end of the track. Through the cooperation of two fixed pulleys and one movable pulley of the output assembly, the force on the tensile wire is half of the tensile force for the user's training. In addition, when the installation position of the output assembly on the track changes, the length of the tensile wire does not change, so that the training intensity of the user does not change with the position, ensuring a good training posture and sufficient movement space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of the tensile fitness device in the embodiment of the present invention with the output assembly hidden;

[0017] Figure 2 is a side view of the tensile fitness device in the embodiment of the present invention;

[0018] Figure 3 is a wiring schematic diagram of the tensile wire in the embodiment of the present invention;

[0019] Figure 4 is a schematic structural view of the output assembly in the embodiment of the present invention;

[0020] Figure 5 is a rear view of the output assembly in the embodiment of the present invention;

[0021] Figure 6 is a schematic structural view of the cooperation between the output assembly and the track in the embodiment of the present invention;

[0022] Figure 7 is a front view of the cooperation between the output assembly and the track in the embodiment of the present invention;

[0023] Figure 8 is a sectional view of the cooperation between the output assembly and the track in the embodiment of the present invention.

[0024] In the figure:

[0025] 11, longitudinal beam; 12, cross beam; 13, bottom plate; 14, bracket; 2, wire winding mechanism; 21, housing; 3, tensile wire; 41, first track; 411, support part; 42, second track; 43, third track; 44, pedal; 45, track groove; 46, limit protrusion; 47, positioning hole; 51, end pulley; 52, reversing pulley; 6, output assembly; 61, housing; 611, wire passing groove; 62, positioning member; 63, wire pressing wheel; 64, fixed pulley; 65, movable pulley; 651, handle; 66, first rolling wheel; 67, second rolling wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation on the present invention.

[0030] Such as Figures 1-8As shown in the figure, the present invention provides a tensile fitness device, which includes a support assembly, a wire winding mechanism 2, and an output assembly 6. The support assembly is used to support the tensile fitness device to ensure the stability of the tensile fitness device during the user's training process. The wire winding mechanism 2 is used to wind the tensile wire 3 and provide a tensile force to the tensile wire 3 as the resistance for the user's training. The training intensity can be changed by adjusting the gear of the wire winding mechanism 2. The output assembly 6 is used for the user to operate and perform training through actions such as pulling and lifting. The support assembly includes a frame and two rails. The frame includes a cross beam 12 and two parallel longitudinal beams 11. The two ends of the cross beam 12 are fixedly connected to the longitudinal beams 11. There are two cross beams 12, and the two cross beams 12 are arranged at intervals along the longitudinal beams 11 and are located above the longitudinal beams 11. A bottom plate 13 is provided at the lower part of the longitudinal beam 11, and the two ends of the bottom plate 13 are respectively fixedly connected to the two longitudinal beams 11. The two rails are respectively fixedly connected to the two longitudinal beams 11, and end pulleys 51 are connected to both ends of the rails. The wire winding mechanism 2 is used to wind the tensile wire 3 and provide a tensile force to the tensile wire 3. The tensile wire 3 is arranged along the rail. The winding mechanism is fixedly connected to the support assembly, and there are two winding mechanisms. The two winding mechanisms correspond to the two rails one by one, and the two tensile wires 3 are respectively arranged on the two rails. The output assembly 6 is provided in two groups, and the two groups of output assemblies 6 are respectively arranged on the two rails. The number of each group of output assemblies 6 can be set to one or more, specifically determined according to the shape and structure of the rail. The output assembly 6 includes a housing 61, a movable pulley 65, and two fixed pulleys 64. The housing 61 is detachably connected to the rail. The two fixed pulleys 64 are rotatably arranged on the housing 61. The movable pulley 65 is located between the two fixed pulleys 64. A handle 651 is connected to the axle of the movable pulley 65. The tensile wire 3 is sequentially wound around one of the end pulleys 51, one of the fixed pulleys 64, the movable pulley 65, and the other fixed pulley 64 and then fixedly connected to the other end pulley 51. That is, by extending the tensile wire 3 along the rail, winding it around the end pulley 51 at one end of the rail and then fixing it to the end pulley 51 at the other end of the rail, and cooperating with the two fixed pulleys 64 and one movable pulley 65 of the output assembly 6, the force on the tensile wire 3 is half of the tensile force for the user's training. In addition, one end of the tensile wire 3 is wound on the wire winding mechanism 2, and the other end bypasses one of the end pulleys 51 of the rail and is fixed to the other end pulley 51. When the installation position of the output assembly 6 on the rail changes, the length of the tensile wire 3 will not change, so that the training intensity of the user will not change with the position, ensuring a good training posture and sufficient movement space.

[0031] Further, the track can be in a straight structure, an L-shaped structure or a C-shaped structure. When the track is in a straight structure, one end of it is fixedly connected to the frame, and both ends are respectively connected to the end pulleys 51, and the number of each group of output components 6 corresponding thereto is one; when the track is in an L-shaped structure, its corner position is fixedly connected to the frame, the wire winding mechanism 2 is located at its corner, both ends of the L-shaped track are respectively connected to the end pulleys 51, a reversing wheel 52 is arranged at its corner, the pulling wire 3 is wound around the reversing wheel 52 for reversing, the pulling wire 3 first bypasses one of the end pulleys 51 along the horizontal or vertical direction and then is arranged in an L shape and fixed on the other end pulley 51, and the number of each group of output components 6 corresponding thereto is two; when the track is in a C-shaped structure, the corner at its lower end is fixedly connected to the frame, the wire winding mechanism 2 is located at the corner at its lower end, both ends of the C-shaped track are respectively connected to the end pulleys 51, and reversing wheels 52 are arranged at both of its corners, the pulling wire 3 is wound around the reversing wheels 52 for reversing, the pulling wire 3 preferably first bypasses the end pulley 51 located below along the horizontal direction and then is arranged in a C shape and fixed on the end pulley 51 above, and the number of each group of output components 6 corresponding thereto is three. In this embodiment, the track is preferably arranged in a C-shaped structure, and the lower reversing wheel 52 is installed through a bracket 14, and the bracket 14 is fixedly connected to the bottom plate 13 or the housing 21 of the wire winding mechanism 2. By providing the bracket 14, the space occupation is reduced.

[0032] Specifically, as Figures 1-2 shown, the track includes a first track 41, a second track 42 and a third track 43. The first track 41 is fixedly connected to the lower end of the longitudinal beam 11, the third track 43 is fixedly connected to the upper end of the longitudinal beam 11, and both ends of the second track 42 are respectively fixedly connected to the first track 41 and the third track 43. The first track 41, the second track 42 and the third track 43 are separately arranged and fixedly connected through fasteners, thereby reducing the difficulty of processing and manufacturing. The second track 42 is arranged at an obtuse angle with the first track 41 to optimize the structure of the support assembly and ensure the stability during the training process. The output components 6 are arranged in three, and the three output components 6 are respectively slidably arranged on the first track 41, the second track 42 and the third track 43. By slidably arranging the output components 6 on the first track 41, the second track 42 and the third track 43, it is not necessary to disassemble them when adjusting the position, improving the user experience. As Figure 3 shown, the wire winding mechanism 2 is arranged at the corner of the first track 41 and the second track 42. The pulling wire 3 first winds around the end pulley 51 arranged at the end of the first track 41, then sequentially arranges along the first track 41, the second track 42 and the third track 43, and is reversed through the reversing wheel 52, and finally fixed on the end pulley 51 arranged at the end of the third track 43. And it sequentially passes through the three output components 6 in this interval, and the user can select the corresponding output component 6 according to himself for adjustment and training.

[0033] Optionally, as Figure 1 shown and combined with Figure 8 , the tensile fitness device further includes a pedal 44. A support portion 411 is provided inside the first track 41. The pedal 44 is disposed between two first tracks 41, and both sides are fixedly connected to the support portions 411 of the two first tracks 41 respectively. The upper surface of the pedal 44 is flush with the upper surface of the first track 41, so as to avoid problems such as users tripping and falling due to the height difference between the two.

[0034] Further, as Figures 4-8 shown, the output assembly 6 further includes a positioning member 62. The housing 61 can slide along the track and is detachably connected to the track through the positioning member 62 to temporarily fix the housing 61 on the track to meet the needs of fixed-point training. The sliding connection between the output assembly 6 and the track can be realized in the form of a dovetail groove and a dovetail slider, or can be realized in the form of a guide rail and a roller, so as to ensure the sliding connection between the output assembly 6 and the track while preventing the output assembly 6 from detaching from the track during the user's training process. In this embodiment, the sliding connection between the output assembly 6 and the track is realized in the form of a guide rail and a roller. A track groove 45 is provided on the outer side of the track. A first rolling wheel 66 and a second rolling wheel 67 are rotatably connected to the housing 61. The diameters of the first rolling wheel 66 and the second rolling wheel 67 are both smaller than the width of the track groove 45. The first rolling wheel 66 is used to roll on one side wall of the track groove 45, and the second rolling wheel 67 is used to roll on the other side wall of the track groove 45. By setting the first rolling wheel 66 and the second rolling wheel 67 to roll on the side walls of the track groove 45, the friction between the two is reduced and the wear is decreased. The diameters of the first rolling wheel 66 and the second rolling wheel 67 are set to be smaller than the width of the track groove 45 to avoid interference or jamming between the first rolling wheel 66 or the second rolling wheel 67 and the side wall of the track groove 45 when the track is deformed, and to ensure the smooth sliding of the output assembly 6 on the track. And the first rolling wheel 66 and the second rolling wheel 67 can be prevented from detaching from the track groove 45 by setting surface fitting or open-end limiting.

[0035] Specifically, please refer to Figure 8 shown. Limiting protrusions 46 are provided on both side walls of the track groove 45. The limiting protrusions 46 extend along the length direction of the track groove 45. A first groove is provided on the outer edge of the first rolling wheel 66 and is engaged with one of the limiting protrusions 46. A second groove is provided on the outer edge of the second rolling wheel 67 and is engaged with the other limiting protrusion 46. That is, the first rolling wheel 66 and the second rolling wheel 67 are limited by surface fitting to prevent them from detaching from the track groove 45. During assembly, first, the first rolling wheel 66 and the second rolling wheel 67 are inserted into the track groove 45 from the opening of the track, and then subsequent assembly operations are carried out.

[0036] Optionally, positioning holes 47 are formed in the bottom wall of the track groove 45. The positioning member 62 can be inserted into the positioning holes 47 to limit the sliding of the housing 61 along the track. The positioning member 62 is preferably a positioning pin or a positioning bolt, and the sliding of the housing 61 along the track is restricted by the plugging and unplugging cooperation with the positioning holes 47.

[0037] Optionally, continue to refer to Figure 8 As shown, a wire groove 611 is provided at the bottom of the housing 61. The wire groove 611 extends along the length direction of the housing 61 and is used to accommodate the tension wire 3. In this embodiment, please refer to Figure 3 As shown, a section of the tension wire 3 from the wire winding mechanism 2 to the end pulley 51 is restricted and guided through the wire groove 611 to avoid large-amplitude swinging.

[0038] Optionally, the output assembly 6 further includes four wire pressing wheels 63. The four wire pressing wheels 63 are divided into two groups in pairs. The two groups of wire pressing wheels 63 are respectively rotatably connected to both ends of the housing 61. The outer edges of the two wire pressing wheels 63 in each group are spaced apart, and the axes are parallel to the axis of the fixed pulley 64. The distance between the outer edges of the two wire pressing wheels 63 is greater than or equal to the diameter of the tension wire 3. The tension wire 3 passes through between the two groups of wire pressing wheels 63 in sequence and contacts the outer edges of the wire pressing wheels 63. By providing the wire pressing wheels 63, it is avoided that the tension wire 3 is damaged due to long-term friction with the housing 61.

[0039] When training with the tension fitness device in this embodiment, first adjust the wire winding mechanism 2 to a gear suitable for one's own conditions, and select the corresponding output assembly 6 according to the training requirements and adjust it to an appropriate position. Subsequently, fix it on the track with the positioning member 62, and then the corresponding training can be carried out. The specific structure of the wire winding mechanism 2 is the prior art in this field, and its working principle and related operations of gear adjustment will not be elaborated here. The tension fitness device provided in this embodiment can meet the needs of users for various training postures, ensure sufficient exercise space and does not require frequent gear adjustment of the wire winding mechanism 2. In addition, the tension borne by the tension wire 3 is only half of the user's training load, and it is less likely to be damaged by fatigue and has a higher service life.

[0040] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Tensile fitness equipment, characterized in that, Comprising: A support assembly, including a frame and two tracks. The frame includes a cross beam (12) and two parallel longitudinal beams (11). Two ends of the cross beam (12) are respectively fixedly connected to the two longitudinal beams (11). The two tracks are respectively fixedly connected to the two longitudinal beams (11). Both ends of the tracks are connected with end pulleys (51); A wire winding mechanism (2), which is used for winding a tension wire (3) and providing tension to the tension wire (3). The tension wire (3) extends along the track; An output assembly (6), which includes a housing (61), a movable pulley (65) and two fixed pulleys (64). The housing (61) is detachably connected to the track. The two fixed pulleys (64) are rotatably arranged on the housing (61). The movable pulley (65) is located between the two fixed pulleys (64). A handle (651) is connected to the axle of the movable pulley (65). The tension wire (3) is sequentially wound around one of the end pulleys (51), one of the fixed pulleys (64), the movable pulley (65) and the other fixed pulley (64), and then fixedly connected to the other end pulley (51).

2. The tensile fitness device according to claim 1, characterized in that, The output assembly (6) further includes a positioning member (62). The housing (61) can slide along the track and is detachably connected to the track through the positioning member (62).

3. The tensile fitness device according to claim 2, characterized in that, An outer side of the track is provided with a track groove (45). A first rolling wheel (66) and a second rolling wheel (67) are rotatably connected to the housing (61). Diameters of the first rolling wheel (66) and the second rolling wheel (67) are both smaller than a width of the track groove (45). The first rolling wheel (66) is used for rolling on one side wall of the track groove (45). The second rolling wheel (67) is used for rolling on the other side wall of the track groove (45).

4. The tensile fitness device according to claim 3, characterized in that, Both side walls of the track groove (45) are provided with limiting protrusions (46). An outer edge of the first rolling wheel (66) is provided with a first groove and is matched with one of the limiting protrusions (46); an outer edge of the second rolling wheel (67) is provided with a second groove and is matched with the other limiting protrusion (46).

5. The tensile fitness device according to claim 4, wherein, A positioning hole (47) is formed in a bottom wall of the track groove (45). The positioning member (62) can be inserted into the positioning hole (47) to limit sliding of the housing (61) along the track.

6. The tensile fitness device according to claim 2, wherein, The track is of a C-shaped structure or an L-shaped structure. A reversing wheel (52) is arranged at a corner thereof. The tension wire (3) is wound around the reversing wheel (52) for reversing.

7. The tensile fitness device according to claim 6, wherein The track includes a first track (41), a second track (42) and a third track (43). The first track (41) is fixedly connected to the lower end of the longitudinal beam (11), the third track (43) is fixedly connected to the upper end of the longitudinal beam (11), both ends of the second track (42) are fixedly connected to the first track (41) and the third track (43) respectively, and the second track (42) is arranged at an obtuse angle to the first track (41). The output components (6) are provided in three numbers, and the three output components (6) are respectively slidably arranged on the first track (41), the second track (42) and the third track (43).

8. The tensile fitness device according to claim 7, wherein, The tension fitness device further includes a pedal (44). A support portion (411) is arranged inside the first track (41). The pedal (44) is arranged between the two first tracks (41), and both sides are fixedly connected to the support portions (411) of the two first tracks (41) respectively. The upper surface of the pedal (44) is flush with the upper surface of the first track (41).

9. The tensile fitness device according to claim 2, wherein A wire groove (611) is arranged at the bottom of the housing (61). The wire groove (611) extends along the length direction of the housing (61), and the wire groove (611) is used for accommodating the tension wire (3).

10. The tensile fitness device according to any one of claims 1-9, characterized in that, The output component (6) further includes four wire pressing wheels (63). The four wire pressing wheels (63) are grouped in pairs and are respectively arranged at both ends of the housing (61). The outer edges of the two wire pressing wheels (63) in each group are arranged at intervals, and the tension wire (3) passes through between the outer edges of the two wire pressing wheels (63).

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