Back trainer

Abstract

The utility model relates to a back training device which comprises a main frame, an armrest frame assembly, a sliding frame assembly and a balancing weight. Wherein a sliding rail is arranged on the main frame; the armrest frame assembly is fixedly arranged at one end of the main frame; the sliding frame assembly is arranged on the sliding rail in a sliding mode and used for sliding from the end away from the armrest frame assembly to the end close to the armrest frame assembly. The balancing weight is arranged on one side of the main frame and connected with the sliding frame assembly, and the balancing weight is used for increasing the sliding resistance of the sliding frame assembly and enabling the sliding frame assembly to slide from the end close to the armrest frame assembly to the end away from the armrest frame assembly; according to the back training device, the armrest frame assembly is fixedly arranged on the main frame, the sliding frame assembly is arranged on the main frame in a sliding mode, an athlete pulls the armrest frame assembly on the sliding frame assembly so that the athlete can slide relative to the armrest frame assembly for exercise, and the situation that the body is fixed due to excessive participation of legs and hips in force exerting is not needed; and the force exerting part is concentrated on the back.

Description

Technical Field

[0001] The present application belongs to the technical field of fitness equipment, and in particular to a back trainer. Background Art

[0002] With the popularization of fitness knowledge, athletes are more keen to reasonably arrange each muscle group in the body for separate training, reducing the strength of other muscle groups during training to achieve the purpose of exercising specific muscle groups.

[0003] The back trainer in the prior art includes a main frame, a seat cushion, an armrest frame and a counterweight, wherein the seat cushion is fixed on the main frame, the armrest frame is slidably connected to the main frame, and the armrest frame is connected to the counterweight. The athlete sits on the seat cushion and pulls the armrest frame towards himself to exercise the back muscles.

[0004] However, when the back trainer in the prior art is in use, the athlete's hips, feet and back are located in different directions, and therefore will be subjected to forces from different directions on the ground. The human body wants to remain stationary, and the athlete will unconsciously mobilize other muscle groups to coordinate force to stabilize the body, resulting in difficulty in controlling the direction of force, and the back muscle force feeling is not obvious, which is not conducive to back muscle training. Utility Model Content

[0005] In view of the shortcomings existing in the related art, the present application provides a back trainer, in which an armrest frame assembly is fixedly set on a main frame, and a sliding frame assembly is slidably set on the main frame. Athletes on the sliding frame assembly pull the armrest frame assembly to slide themselves relative to the armrest frame assembly to exercise, without the need for the legs and buttocks to participate too much in exerting force to keep the body fixed, thereby ensuring that the force exerting part is concentrated on the back.

[0006] The present application provides a back training device, comprising:

[0007] A main frame, wherein a slide rail is provided on the main frame;

[0008] A handrail frame assembly is fixedly mounted on one end of the main frame;

[0009] A sliding frame assembly is slidably disposed on the slide rail, and the sliding frame assembly is used to slide between an end away from the handrail frame assembly and an end close to the handrail frame assembly;

[0010] A counterweight block is arranged at one side of the sliding frame assembly and connected to the sliding frame assembly, and the counterweight block is used to increase the sliding resistance of the sliding frame assembly.

[0011] In some embodiments, it also includes:

[0012] A chest pad assembly is arranged on the sliding frame assembly, and the chest pad assembly is used to provide chest support.

[0013] In some embodiments, the chest pad assembly comprises:

[0014] A first adjustment frame, fixedly mounted on one end of the sliding seat close to the armrest frame assembly;

[0015] A chest pad, one end of which is slidably arranged in the first adjustment frame, and the other end of which is used to push the athlete's chest.

[0016] In some embodiments, the first adjustment frame and the chest pad are respectively provided with corresponding first sockets, a first pin is detachably provided in the first socket, and the first pin and the first socket are used to cooperate to control the relative position of the first adjustment frame and the chest pad.

[0017] In some embodiments, the sliding frame assembly includes:

[0018] A sliding seat, disposed on the slide rail, one end of the sliding seat being connected to the counterweight block;

[0019] The sliding member is arranged in the sliding seat, and the sliding member is slidably connected to the sliding rail.

[0020] In some embodiments, the slide rail includes at least one slide bar, and each of the slide bars is slidably connected to at least one of the slide members.

[0021] In some embodiments, the sliding member is a pulley, and each sliding rod is slidably connected to three pulleys, two of which are located on the same side of the sliding rod and are respectively arranged at both ends of the sliding seat; the other pulley is located on the other side of the sliding rod, used to prevent the sliding seat from detaching from the sliding rod.

[0022] In some embodiments, it also includes:

[0023] A seat cushion assembly is arranged on the sliding frame assembly, and the seat cushion assembly is used to provide buttocks support.

[0024] In some embodiments, the cushion assembly includes:

[0025] A second adjustment frame is fixedly mounted on one end of the sliding seat away from the armrest frame assembly;

[0026] A seat cushion, one end of which is slidably arranged in the second adjustment frame.

[0027] In some embodiments, the counterweight block is selected iron, and when the external force supporting the sliding frame assembly to slide toward one end close to the handrail frame assembly is not greater than the reverse resistance provided by the counterweight block, the counterweight block is used to make the sliding frame assembly slide from one end close to the handrail frame assembly to one end away from the handrail frame assembly.

[0028] In some embodiments, the handrail assembly includes:

[0029] A first handrail, fixed on the main frame and located on one side of the slide rail;

[0030] The second handrail is fixed on the main frame and is located on the other side of the slide rail relative to the first handrail.

[0031] In summary, the back trainer of the present application is implemented by fixing the armrest frame assembly on the main frame, and sliding the frame assembly on the main frame. The athlete is on the sliding frame assembly, holding the armrest frame assembly to slide relative to the armrest frame assembly for exercise, and there is no need for the legs and buttocks to participate too much in exerting force to keep the body fixed, ensuring that the force exerting part is concentrated on the back; the sliding seat is ensured to slide normally on the slide rail by the cooperation of the sliding rod and the three sliding parts; the relative position of the first adjustment frame and the chest pad is controlled by the cooperation of the first pin and the first socket; the relative position of the second adjustment frame and the seat cushion is controlled by the cooperation of the second pin and the second socket.

[0032] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description in the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0034] Figure 1 This is a schematic diagram of the three-dimensional structure of the back training device of the present application;

[0035] Figure 2 This is a front view of the back trainer of this application.

[0036] In the figure:

[0037] 100, main frame; 101, slide rail; 102, bottom frame; 103, counterweight frame; 200, armrest frame assembly; 201, first armrest; 202, second armrest; 203, support member; 300, sliding frame assembly; 301, sliding seat; 302, sliding member; 400, counterweight block; 500, first adjustment frame; 600, chest pad; 700, second adjustment frame; 800, seat cushion; 900, footrest. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0039] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Specific embodiments

[0043] Reference Figure 1 With attached Figure 2 The present application provides a back trainer, including a main frame 100, an armrest frame assembly 200, a sliding frame assembly 300 and a counterweight block 400.

[0044] Among them, a slide rail 101 is provided on the main frame 100; the handrail frame assembly 200 is fixed at one end of the main frame 100; the sliding frame assembly 300 is slidably arranged on the slide rail 101, and the sliding frame assembly 300 is used to slide from one end away from the handrail frame assembly 200 to one end close to the handrail frame assembly 200; the counterweight block 400 is arranged on one side of the sliding frame assembly 300 and connected to the sliding frame assembly 300, and the counterweight block 400 is used to increase the sliding resistance of the sliding frame assembly 300.

[0045] Reference Figure 1 With attached Figure 2In some embodiments, the main frame 100 includes a base frame 102, a slide rail 101 and a counterweight frame 103, wherein the base frame 102 is laid on a horizontal plane, the counterweight frame 103 is arranged on one side of the base frame 102 and fixedly connected thereto, the counterweight block 400 is arranged in the counterweight frame 103 and connected to the sliding frame assembly 300, the slide rail 101 is arranged on a side of the base frame 102 away from the horizontal plane, and both ends of the slide rail 101 are fixedly connected to the base frame 102.

[0046] Reference Figure 1 The base frame 102 is used to lay the foundation for the setting of the slide rail 101. A gap is set between the base frame 102 and the slide rail 101 so that the sliding frame assembly 300 can slide on the slide rail 101, and the sliding frame assembly 300 does not contact the base frame 102 during the sliding process; the slide rail 101 is used to guide the sliding frame assembly 300 to cooperate with the sliding of the sliding frame assembly 300 away from or close to the handrail frame assembly 200; the counterweight frame 103 is used to accommodate the configuration of the counterweight block 400; the counterweight block 400 is used to increase the sliding resistance of the sliding frame assembly 300 so that the athlete can achieve the effect of exercising the back; and when the external force supporting the sliding frame assembly 300 to slide toward one end close to the handrail frame assembly 200 is not greater than the reverse resistance provided by the counterweight block 400, the counterweight block 400 is also used to make the sliding frame assembly 300 slide from one end close to the handrail frame assembly 200 to the end away from the handrail frame assembly 200, so as to cooperate with the relaxation rhythm of the athlete during exercise, and there is no need to manually reset the sliding frame assembly 300.

[0047] Reference Figure 2 In some embodiments, the sliding frame assembly 300 includes a sliding seat 301 and a sliding member 302. The sliding seat 301 is open on three sides. The sliding seat 301 is covered on the slide rail 101 and is slidably connected to the slide rail 101 through the sliding member 302 disposed in the sliding seat 301. The end of the sliding seat 301 away from the handrail frame assembly 200 is connected to the counterweight 400 through a steel cable.

[0048] Reference Figure 1 With attached Figure 2 In some embodiments, the counterweight 400 is selected from iron, and a fixed pulley assembly is provided between the sliding seat 301 and the counterweight 400, and the fixed pulley assembly is used to change the direction of the force so that the gravity of the counterweight 400 is used to pull the sliding seat 301 from one end close to the handrail assembly 200 to the end away from the handrail assembly 200.

[0049] In some embodiments, the slide rail 101 includes at least one slide bar, and each of the slide bars is slidably connected to at least one sliding member 302;

[0050] Reference Figure 1In some embodiments, the slide rail 101 includes two parallel sliding rods, each sliding rod is slidably connected to at least two sliding members 302, and at least four sliding members 302 are rotatably arranged at four end points of the sliding seat 301, which are used to support the sliding seat 301 so that the sliding seat 301 can slide smoothly on the slide rail 101.

[0051] It should be noted that the sliding parts 302 include but are not limited to pulleys, rollers and balls; in order to increase the load-bearing capacity of the sliding seat 301 and ensure that the sliding seat 301 can slide normally relative to the slide rail 101, the number of sliding parts 302 configured for each slide rod is set according to actual conditions. The more sliding parts 302 there are, the greater the load-bearing capacity of the sliding seat 301.

[0052] Reference Figure 1 With attached Figure 2 In some embodiments, the sliding member 302 is a pulley, and the slide rail 101 includes two parallel sliding rods, each sliding rod is slidably connected to three sliding members 302, wherein two sliding members 302 are located on the same side of the sliding rod and are respectively arranged at both ends of the sliding seat 301, that is, the four sliding members 302 are rotatably arranged at the four end points of the sliding seat 301, and the four sliding members 302 are located on the side of the slide rail 101 away from the base frame 102, and are used to carry the sliding seat 301; the other sliding member 302 is located on the other side of the slide rod, that is, the two sliding members 302 are rotatably arranged on the side of the slide rail 101 close to the base frame 102 relative to the above-mentioned four sliding members 302, so as to prevent the sliding seat 301 from separating from the slide rod.

[0053] It should be noted that the number of sliding members 302 rotatably arranged on the side of the slide rail 101 close to the base frame 102 is set according to actual conditions. The more sliding members 302 there are on the side of the slide rail 101 close to the base frame 102, the more stable the sliding seat 301 is, and the sliding seat 301 is not easy to leave the slide rail 101.

[0054] Reference Figure 1 With attached Figure 2 In some embodiments, the back trainer also includes a chest pad assembly, which is arranged on the sliding frame assembly 300, and is used to provide support for the athlete's chest; the chest pad assembly includes a first adjustment frame 500 and a chest pad 600, the first adjustment frame 500 is fixed to one end of the sliding seat 301 close to the armrest frame assembly 200, one side of the first adjustment frame 500 is open, and the opening faces the side away from the armrest frame assembly 200, and the chest pad 600 is slidably arranged in the first adjustment frame 500, and the chest pad 600 slides relative to the first adjustment frame 500 to approach or move away from the armrest frame assembly 200. Different athletes adjust the relative position of the chest pad 600 and the first adjustment frame 500 according to their arm length, so that the athlete can grasp the armrest frame assembly 200 while the chest rests on the chest pad 600, thereby providing a fulcrum for back training and helping the back muscles to exert force stably.

[0055] In some embodiments, corresponding first sockets are provided on the first adjustment frame 500 and the chest pad 600. When the chest pad 600 slides relative to the first adjustment frame 500, the first socket provided on the chest pad 600 and the first socket provided on the first adjustment frame 500 also move relative to each other. When the chest pad 600 slides to a suitable position relative to the first adjustment frame 500, the relative movement of the first socket provided on the chest pad 600 and the first socket provided on the first adjustment frame 500 is restricted by inserting a first pin, thereby fixing the relative position of the first adjustment frame 500 and the chest pad 600.

[0056] Reference Figure 1 With attached Figure 2 In some embodiments, the back trainer also includes a cushion assembly, which is arranged on the sliding frame assembly 300, and the cushion assembly is used to provide support for the athlete's buttocks; the cushion assembly includes a second adjustment frame 700 and a cushion 800, the second adjustment frame 700 is fixed to one end of the sliding seat 301 away from the armrest frame assembly 200, one side of the second adjustment frame 700 is open, and the opening faces the side away from the base frame 102, and the cushion 800 is slidably arranged in the second adjustment frame 700, and the cushion 800 slides relative to the second adjustment frame 700 to approach or move away from the base frame 102. Different athletes adjust the relative position of the cushion 800 and the second adjustment frame 700 according to their leg length, so that when the athlete sits on the cushion 800, both feet are naturally placed on the sliding seat 301, so that during the back training process, the athlete's body shape is kept stable on the sliding seat 301 without excessively participating in coordinated force.

[0057] In some embodiments, corresponding second sockets are provided on the second adjustment frame 700 and the seat cushion 800. When the seat cushion 800 slides relative to the second adjustment frame 700, the second socket provided on the seat cushion 800 and the second socket provided on the second adjustment frame 700 also move relative to each other. When the seat cushion 800 slides to a suitable position relative to the second adjustment frame 700, the relative movement of the second socket provided on the seat cushion 800 and the second socket provided on the second adjustment frame 700 is restricted by inserting a second pin, thereby fixing the relative position of the second adjustment frame 700 and the seat cushion 800.

[0058] It should be noted that in the description of this application, the corresponding definition is: the outer diameter of the first pin / the second pin is not greater than the inner diameter of the first socket / the second socket, so that the first pin / the second pin can be slidably inserted in the first socket / the second socket.

[0059] The definition of coordination control is: the first latch / the second latch is inserted into the first socket / the second socket to fix the relative position of the first adjustment frame 500 and the chest pad 600, or the relative position of the second adjustment frame 700 and the seat cushion 800 is fixed; the first latch / the second latch is pulled out of the first socket / the second socket to release the first adjustment frame 500 and the chest pad 600 relative to each other, so that the first adjustment frame 500 and the chest pad 600 can slide relative to each other; or the second adjustment frame 700 and the seat cushion 800 are released relative to each other, so that the second adjustment frame 700 and the seat cushion 800 can slide relative to each other.

[0060] In actual applications, in order to make the back trainer look neat, the number of first sockets / second sockets provided on the first adjustment frame 500 / second adjustment frame 700 is usually one, while the number of first sockets / second sockets provided on the chest pad 600 / seat cushion 800 is multiple, and the first pin / second pin first passes through the first socket / second socket on the first adjustment frame 500 / second adjustment frame 700, and then passes through the first socket / second socket on the chest pad 600 / seat cushion 800 to complete the locking of the relative position; the more the number of first sockets / second sockets on the chest pad 600 / seat cushion 800 is, the more adjustment levels are available for athletes to choose from, and the wider the applicability is.

[0061] Reference Figure 1 In some embodiments, the armrest frame assembly 200 includes a first armrest 201, a second armrest 202 and a support member 203, wherein the first armrest 201 is fixed on the base frame 102 and is located on one side of the slide rail 101; the second armrest 202 is fixed on the base frame 102 and is located on the other side of the slide rail 101 relative to the first armrest 201; the first armrest 201 and the second armrest 202 are used to provide athletes with fixed gripping points to help athletes feel the force of the back muscles.

[0062] In some embodiments, the support member 203 is fixedly connected to the base frame 102, the first armrest 201 and the second armrest 202. The support member 203, the first armrest 201 / the second armrest 202 and the base frame 102 together form a stable triangular frame to share the tension borne by the first armrest 201 / the second armrest 202; the support member 203 is used to support the first armrest 201 and the second armrest 202 to stabilize the relative positions of the first armrest 201 and the second armrest 202 and the slide rail 101.

[0063] Reference Figure 1 With attached Figure 2 In some embodiments, the footrest 900 is fixed to one end of the sliding seat 301 close to the armrest assembly 200, and the footrest 900 is used to place the athlete's feet, further preventing the athlete's feet from stepping on the sliding seat 301 to participate in coordinated force.

[0064] During the preparation process, the athlete first adjusts the positions of the chest pad 600 and the seat cushion 800 according to the length of his arms and legs, inserts the first pin and the second pin to fix the chest pad 600 and the seat cushion 800, and then selects a suitable counterweight 400 on the counterweight rack 103 before training.

[0065] During the actual training process, the athlete sits on the seat cushion 800, steps on the footrest 900, puts the chest against the chest pad 600, holds the armrest assembly 200 with both hands, and uses the back to pull the sliding seat 301 to overcome its own gravity and the resistance of the counterweight to move in the direction close to the armrest assembly 200. After the sliding seat 301 slides to the end of the slide rail 101 close to the armrest assembly 200, the athlete relaxes his back, and the counterweight 400 pulls the sliding seat 301 to move in the direction away from the armrest assembly 200. After the sliding seat 301 slides to the end of the slide rail 101 away from the armrest assembly 200, the athlete completes a back training.

[0066] The back trainer of the present application is achieved by fixing the armrest frame assembly 200 on the main frame 100, and sliding the frame assembly 300 on the main frame 100. The athlete pulls himself on the sliding frame assembly 300 and the sliding frame assembly 300 slides relative to the armrest frame assembly 200 to exercise. There is no need for the legs and buttocks to participate too much in exerting force to keep the body fixed, and the force exerting part is ensured to be concentrated on the back; each sliding rod is coordinated with the three sliding members 302 to ensure that the sliding seat 301 slides normally on the slide rail 101; the relative positions of the first adjustment frame 500 and the chest pad 600 are controlled by the first pin and the first socket, and the relative positions of the second adjustment frame 700 and the seat cushion 800 are controlled by the second pin and the second socket, thereby increasing the application range of the back trainer.

[0067] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0068] The above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present application, which should be included in the scope of the technical solution requested for protection in the present application.

Claims

1. A back training device, characterized in that: include: A main frame, wherein a slide rail is provided on the main frame; A handrail frame assembly is fixedly mounted on one end of the main frame; A sliding frame assembly is slidably disposed on the slide rail, and the sliding frame assembly is used to slide between an end away from the handrail frame assembly and an end close to the handrail frame assembly; A counterweight block is arranged at one side of the sliding frame assembly and connected to the sliding frame assembly, and the counterweight block is used to increase the sliding resistance of the sliding frame assembly.

2. The back training device according to claim 1, characterized in that: Also includes: A chest pad assembly is arranged on the sliding frame assembly, and the chest pad assembly is used to provide chest support.

3. The back training device according to claim 2, characterized in that: The sliding frame assembly comprises; A sliding seat, disposed on the slide rail, one end of the sliding seat being connected to the counterweight block; The sliding member is arranged in the sliding seat, and the sliding member is slidably connected to the sliding rail.

4. The back training device according to claim 3, characterized in that: The chest pad assembly comprises: A first adjustment frame, fixedly mounted on one end of the sliding seat close to the armrest frame assembly; A chest pad, one end of which is slidably arranged in the first adjustment frame, and the other end of which is used to push the athlete's chest.

5. The back training device according to claim 4, characterized in that: The first adjustment frame and the chest pad are respectively provided with corresponding first plug holes, a first latch is detachably provided in the first plug hole, and the first latch and the first plug hole are used to cooperate to control the relative position of the first adjustment frame and the chest pad.

6. The back training device according to claim 5, characterized in that: The slide rail comprises at least one slide bar, and each of the slide bars is slidably connected to at least one slide member.

7. The back training device according to claim 6, characterized in that: The sliding member is a pulley, and each sliding rod is slidably connected to three pulleys, two of which are located on the same side of the sliding rod and are respectively arranged at both ends of the sliding seat; the other pulley is located on the other side of the sliding rod to prevent the sliding seat from detaching from the sliding rod.

8. The back training device according to claim 3, characterized in that: Also includes: A seat cushion assembly is arranged on the sliding frame assembly, and the seat cushion assembly is used to provide buttocks support.

9. The back training device according to claim 8, characterized in that: The seat cushion assembly comprises: A second adjustment frame is fixedly mounted on one end of the sliding seat away from the armrest frame assembly; A seat cushion, one end of which is slidably arranged in the second adjustment frame.

10. The back training device according to any one of claims 1 to 9, characterized in that: The counterweight block is selected from iron. When the external force supporting the sliding frame assembly to slide toward one end close to the handrail frame assembly is not greater than the reverse resistance provided by the counterweight block, the counterweight block is used to make the sliding frame assembly slide from one end close to the handrail frame assembly to one end away from the handrail frame assembly.

11. The back training device according to any one of claims 1 to 9, characterized in that: The handrail assembly comprises: A first handrail, fixed on the main frame and located on one side of the slide rail; The second handrail is fixed on the main frame and is located on the other side of the slide rail relative to the first handrail.

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