CN111672067A

CN111672067A - Leg flexion and extension trainer

Info

Publication number: CN111672067A
Application number: CN202010684830.6A
Authority: CN
Inventors: 张志均; 秦银波; 沙昊然; 康海纯
Original assignee: Nantong Ironmaster Sporting Industrial Co Ltd
Current assignee: Nantong Ironmaster Sporting Industrial Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-09-18

Abstract

The invention relates to a leg flexion and extension trainer which comprises a main frame, wherein a left rotating frame and a right rotating frame are respectively arranged on two sides of the front end of the main frame, the left rotating frame and the right rotating frame are respectively connected with a left leg hooking frame and a right leg hooking frame, front foam and rear foam are respectively arranged on the left leg hooking frame and the right leg hooking frame, a large synchronous belt wheel is coaxially arranged on each of the left rotating frame and the right rotating frame, the large synchronous belt wheel is connected with a small synchronous belt wheel through a synchronous belt, the small synchronous belt wheel is arranged on a shaft of a speed reducer, and the speed reducer is connected with a motor. The invention uses the electromagnetic resistance generated by the motor as the resistance source, can provide stable and unchangeable resistance for muscles in the process of movement, can greatly improve the training effect, has independent left and right leg resistance sources, can independently set the resistance according to the leg strength training requirement, and can carry out targeted training. The bending and stretching of the legs of the single leg can be used for resistance training, and the resistance can be set independently.

Description

Leg flexion and extension trainer

Technical Field

The invention relates to a body-building trainer, in particular to a leg flexion and extension trainer.

Background

The traditional leg flexion and extension training is to train quadriceps femoris and popliteal muscles through leg flexion and extension actions by selecting a plate or a bell plate as a load. However, this resistance may vary with the movement of the handler. For example, resistance often increases at the beginning of a movement due to the inertia of the arm and weight plate itself, and at the end of the movement, the inertial resistance also decreases, which can cause impact injury to the joints of the legs during training. Meanwhile, in the process of exercise, the maximum resistance force point and the maximum muscle force point are not synchronous, and the training effect is not ideal.

The traditional leg flexion and extension training is that both legs simultaneously act on the same resistance source, the targeted training cannot be carried out due to the unbalanced strength of both legs, the traditional leg flexion and extension training is only carried out by single leg flexion or resistance training by single leg extension, namely, when leg extension training is carried out, the legs are extended to resist resistance, and when the legs are bent to have no resistance; when doing leg bending training, the leg bending resists resistance, and the leg stretching does not have resistance.

Disclosure of Invention

The present invention is directed to a leg flexion and extension training device to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a shank bends and stretches training ware, which comprises a main frame, be equipped with the cushion frame that can the back-and-forth movement on the body frame, be equipped with the cushion on the cushion frame, still be equipped with the back cushion frame on the cushion frame, be equipped with the back cushion on the back cushion frame, the front end top of body frame is equipped with the rotating turret, be equipped with the handle about on the rotating turret, the rotating turret below is connected with leg pressing frame through the adjusting wheel dish, leg pressing frame has leg pressing pad, body frame front end both sides are equipped with left rotating turret and right rotating frame respectively, left rotating turret and right rotating frame are connected with left side leg hooking frame and right leg hooking frame respectively, left side hooking frame and right side hooking frame all are equipped with preceding bubble cotton and back bubble cotton, left rotating turret and right rotating frame all coaxially are equipped with big synchronous pulley, big synchronous pulley even has little synchronous pulley through the hold-in-range, little synchronous pulley installs on the axle of speed reducer, the.

The invention is further improved in that: two sides of the cushion frame are sleeved on the linear track and fixed through the first pull pin.

The invention is further improved in that: one end of the rotating frame is movably connected to the main frame, and the other end of the rotating frame is fixed to the main frame through a second pull pin.

The invention is further improved in that: the left leg hooking frame and the right leg hooking frame are both provided with adjusting inserted rods, and the adjusting inserted rods are respectively inserted into the left rotating frame and the right rotating frame and are adjusted and fixed through the left pull pin and the right pull pin.

The invention is further improved in that: two front foam are respectively fixed on the left leg hooking frame and the right leg hooking frame, and two rear foam are movably connected on the left leg hooking frame and the right leg hooking frame through foam adjusting frames.

The invention is further improved in that: the bottom of the main frame is provided with a plurality of adjustable foot pads.

The invention is further improved in that: the main frame is provided with an instrument frame which is provided with an instrument.

Compared with the prior art, the invention has the beneficial effects that:

the invention can provide stable and unchangeable resistance for muscles in the process of movement by using the electromagnetic resistance generated by the motor as a resistance source. Secondly, because the resistance is stable in the motion process, the maximum force point of the resistance and the maximum force point of the leg muscles are synchronous, and the training effect can be greatly improved. The left leg resistance source and the right leg resistance source are independent, resistance can be set independently according to leg strength training requirements, and targeted training can be performed. The bending and stretching of the legs of the single leg can be used for resistance training, and the resistance can be set independently.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a graph of the force profile during electromagnetic resistance training;

reference numbers in the figures: 1-a main frame, 2-a cushion frame, 3-a linear track, 4-a rotating frame, 5-a leg pressing frame, 6-a right rotating frame, 7-a right leg hooking frame, 8-a left rotating frame, 9-a left leg hooking frame, 10-a foam adjusting frame, 11-a cushion, 12-a back cushion, 13-a leg pressing cushion, 14-an instrument frame, 15-an instrument and 16-a synchronous belt, 17-large synchronous belt wheel, 18-small synchronous belt wheel, 19-speed reducer, 20-motor, 21-front foam, 22-second pull pin, 23-first pull pin, 24-right pull pin, 25-left pull pin, 26-back cushion frame, 27-handle, 28-adjusting wheel disc, 29-adjusting inserted rod, 30-rear foam and 31-adjustable foot pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 and fig. 2, the present embodiment provides a technical solution: the utility model provides a leg bends and stretches training ware, includes body frame 1, is equipped with the cushion frame 2 that can the back-and-forth movement on the body frame 1, is equipped with cushion 11 on the cushion frame 2, and the both sides cover of cushion frame 2 is on sharp track 3 to it is fixed through first pull pin 23. Still be equipped with back cushion frame 26 on the cushion frame 2, be equipped with on the back cushion frame 26 and be equipped with back cushion 12, the front end top of body frame 1 is equipped with rotating turret 4, and rotating turret 4 one end swing joint is on body frame 1, and the other end passes through the second and draws round pin 22 to be fixed on body frame 1. The left and right sides of the rotating frame 4 are provided with handles 27, the lower part of the rotating frame 4 is connected with a leg pressing frame 5 through an adjusting wheel disc 28, a leg pressing pad 13 is arranged below the leg pressing frame 5, the two sides of the front end of the main frame 1 are respectively provided with a left rotating frame 8 and a right rotating frame 6, the left rotating frame 8 and the right rotating frame 6 are respectively connected with a left leg hooking frame 9 and a right leg hooking frame 7, the left leg hooking frame 9 and the right leg hooking frame 7 are respectively provided with front foam 21 and rear foam 30, the left leg hooking frame 9 and the right leg hooking frame 7 are respectively provided with an adjusting inserted rod 29, and the adjusting inserted rods 29 are respectively inserted into the left rotating frame 8 and the right rotating frame 6 and are adjusted and fixed through a left pull pin 25 and a right pull pin 24. Two front foam 21 are respectively fixed on the left leg hooking frame 9 and the right leg hooking frame 7, and two rear foam 30 are respectively movably connected on the left leg hooking frame 9 and the right leg hooking frame 7 through foam adjusting frames 10. The left rotating frame 8 and the right rotating frame 6 are coaxially provided with a large synchronous belt pulley 17, the large synchronous belt pulley 17 is connected with a small synchronous belt pulley 18 through a synchronous belt 16, the small synchronous belt pulley 18 is arranged on a shaft of a speed reducer 19, and the speed reducer 19 is connected with a motor 20.

The bottom of the main frame 1 is provided with a plurality of adjustable foot pads 31, and the stable state can be adjusted even if the ground is uneven. The main frame 1 is provided with an instrument frame 14, and the instrument frame 14 is provided with an instrument 15.

The invention mainly trains quadriceps femoris and popliteal cord muscles of a user, before the training, the user pulls a second pull pin 22 to open a rotating frame 4, then sits on a cushion 11, pulls a first pull pin 23 to adjust a cushion frame 2 according to self training requirements, pulls a right pull pin 24 to adjust the height of a right leg hooking frame 7, pulls a left pull pin 25 to adjust the height of a left leg hooking frame 9, then the upper parts of ankles are respectively placed between a left group of front foam cotton 21 and a right group of rear foam cotton 30, respectively rotates adjusting wheel discs on the right leg hooking frame 7 and the left leg hooking frame 9, adjusts the distance between the front foam cotton 21 and the rear foam cotton 30 to ensure that the two foam cotton are tightly attached to the upper parts of the ankles, closes the rotating frame 4 and is locked by the second pull pin 22, rotates an adjusting wheel disc 28 on the rotating frame 4 to adjust the height of a leg pressing frame 5 to ensure that a leg pressing pad 13 presses the thighs, then adjusts an adding and subtracting button of training resistance on a touch screen of an instrument 15, and adjusting to the proper training resistance, and finally, holding the handles 27 on the rotating frame 4 by two hands to enter the training state. The left leg hooking frame 9 and the right leg hooking frame 7 are pushed by the two legs to drive the left rotating frame 8 and the right rotating frame 6 to rotate, then the large synchronous belt pulley 17 is driven by a shaft, the large synchronous belt pulley 17 pulls the synchronous belt 16, the other end of the synchronous belt 16 is connected with the small synchronous belt pulley 18 to drive the small synchronous belt pulley 18 to rotate, the small synchronous belt pulley 18 is installed on the shaft of the speed reducer 19 to drive the speed reducer 19 to rotate, and the speed reducer 19 drives the motor 20 to rotate to generate electromagnetic resistance so as to resist resistance. When the training is finished, the resistance is reduced, the leg-pressing pad 13 is loosened, the rotating frame 4 is opened, the

foam

21 and 30 pressing the upper part of the ankle are loosened, and the training is finished. The technical parameters required for training can be displayed on the meter 15.

As shown in fig. 3, the upper half of the line is the force generated when the force is applied and the lower half is the force generated when the force is released back to the original position. As can be seen, the electromagnetic resistance technique of the present invention provides a very stable resistance that varies greatly over a range of motion compared to the resistance provided by conventional weight plates, and such variations can cause significant damage to the joint and connective tissue of the user. The resistance curve provided by the invention is designed through accurate measurement and calculation. It can be seen from the figure that the forces at the beginning and the end are small and the force at some angle in between is the largest. This is because the starting and ending positions are the starting and ending points of the force, and the user is most vulnerable to injury during training and therefore needs to be a little bit smaller. The resistance of the middle section is gradually increased, and the section is the section which is most suitable for exerting force.

The invention is suitable for trainers with different statures, is provided with the cushion adjusting mechanism and the left and right leg hooking frame adjusting mechanisms, has strong applicability, and can adjust the front and back distance of the cushion and the height of the left and right leg hooking frames by pulling the pull pin according to the height of the trainer, thereby achieving the optimal position suitable for the trainer.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shank bends and stretches training ware which characterized in that: comprises a main frame (1), a cushion frame (2) capable of moving back and forth is arranged on the main frame (1), a cushion (11) is arranged on the cushion frame (2), a back cushion frame (26) is further arranged on the cushion frame (2), a back cushion (12) is arranged on the back cushion frame (26), a rotating frame (4) is arranged above the front end of the main frame (1), handles (27) are arranged on the rotating frame (4) in the left and right directions, a leg pressing frame (5) is connected below the rotating frame (4) through an adjusting wheel disc (28), a leg pressing pad (13) is arranged below the leg pressing frame (5), a left rotating frame (8) and a right rotating frame (6) are respectively arranged on the two sides of the front end of the main frame (1), the left rotating frame (8) and the right rotating frame (6) are respectively connected with a left hook leg frame (9) and a right hook leg frame (7), a front foam (21) and a back foam (30) are respectively arranged on the left hook frame (9) and the right leg frame (7), the left rotating frame (8) and the right rotating frame (6) are coaxially provided with a large synchronous belt wheel (17), the large synchronous belt wheel (17) is connected with a small synchronous belt wheel (18) through a synchronous belt (16), the small synchronous belt wheel (18) is installed on a shaft of a speed reducer (19), and the speed reducer (19) is connected with a motor (20).

2. A leg flexion and extension trainer according to claim 1, characterised in that: two sides of the cushion frame (2) are sleeved on the linear track (3) and fixed through a first pull pin (23).

3. A leg flexion and extension trainer according to claim 1, characterised in that: one end of the rotating frame (4) is movably connected to the main frame (1), and the other end of the rotating frame is fixed to the main frame (1) through a second pull pin (22).

4. A leg flexion and extension trainer according to claim 1, characterised in that: the left side colludes leg frame (9) with the right side collude leg frame (7) and all be equipped with regulation inserted bar (29), adjust inserted bar (29) and insert respectively in left rotating turret (8) with right rotating turret (6) to draw round pin (25) and right side to draw round pin (24) to adjust fixedly through the left side.

5. A leg flexion and extension trainer according to claim 1, characterised in that: two preceding bubble cotton (21) are fixed respectively on the leg frame (7) are colluded to the left side with the right side, two back bubble cotton (30) are through steeping cotton adjusting bracket (10) swing joint collude leg frame (9) on the left side with the right side collude on leg frame (7).

6. A leg flexion and extension trainer according to claim 1, characterised in that: a plurality of adjustable foot pads (31) are arranged at the bottom of the main frame (1).

7. A leg flexion and extension trainer according to claim 1, characterised in that: be equipped with instrument rack (14) on body frame (1), be equipped with instrument (15) on instrument rack (14).