CN113750460B - Training teaching device for improving national constitution and teaching method thereof - Google Patents

Abstract

The invention relates to the field of physical education, in particular to a training and teaching device for improving the constitution of the nation, which comprises a training pad, wherein two sides of the front end of the training pad are respectively provided with a guide mechanism, the guide mechanisms are provided with traction mechanisms in sliding fit with the guide mechanisms, and the other ends of the traction mechanisms are suspended at the opposite sides of the two guide mechanisms and form traction ends for being held by a trainer; training pad front end one side still is equipped with angle detection mechanism and transmission armset, and the one end of transmission armset articulates in the training pad outside to this one end is the transmission end, and the transmission armset other end is connected with the drive mechanism transmission, and this one end is transmission armset free end, and the transmission armset is extending structure, and angle detection mechanism locates transmission armset transmission end, and is connected with the transmission end transmission. The invention can assist and supervise trainers to develop habits and postures of standard exercises.

Description

Training teaching device for improving national constitution and teaching method thereof

Technical Field

The invention relates to the field of physical education, in particular to a training and teaching device for improving the national constitution and a teaching method thereof.

Background

Sports is an educational component, and is a purposeful, planned, and organized educational process through physical activity and some other ancillary means. Sports education itself is a complete system, and is divided into general sports education and special sports education. The basic characteristics are outstanding educational and teaching properties. The physical education takes teaching as a main way, classroom teaching or special tutoring as a main form and physical exercise and health care as main means.

Sit-up and push-up are simple and effective exercises capable of improving the muscle strength of upper limbs, breasts, waist and back and abdomen, and the existing equipment used for the exercises in schools has single function, particularly sit-up exercises, the exercise needs exercise regulation to achieve the effect of improving the physique, but some school students have poor autonomy and even have weak significance consciousness on the exercise regulation of some exercises, therefore, during the exercise process, some irregular actions are easy to keep for exercise, and the correct sit-up and push-up require long-term action specifications (for example, the force application is larger by depending on one side during the sit-up, namely the sit-up is carried out on one side, the half-range sit-up is carried out, namely the lying-down and the sit-up range is small, and the push-up also can carry out half-range movement), so that the effect of building up the body can be achieved, but the teacher in a school can not check the action of each student at any time;

in addition, the traditional sit-up mode adopts two hands to hold the head to do sit-up, because the cervical vertebra has a natural body curve, when you hold the head with two hands, when doing sit-up, the two hands can bring huge pressure to the cervical vertebra, so easily break your cervical vertebra. This is why many people sit up on their back, and the next day they feel uncomfortable and painful around their neck, and even cervical spondylosis can result from improper exercise for a long time.

Disclosure of Invention

The invention aims to provide a training and teaching device for improving the national constitution.

In order to achieve the purpose, the invention adopts the following technical scheme:

the training and teaching device comprises a controller and a training pad, wherein the training pad is provided with a front end and a rear end, two sides of the front end of the training pad are respectively provided with a guide mechanism, each guide mechanism is respectively provided with a traction mechanism, one end of each traction mechanism is in sliding fit with the corresponding guide mechanism, and the other end of each traction mechanism is suspended on one opposite side of the two guide mechanisms to form a traction end for a trainer to hold; the front end one side of training pad still is provided with angle detection mechanism and transmission armset, the one end of transmission armset articulates in the training pad outside to this one end is the transmission end, the other end and the drive mechanism transmission of transmission armset are connected to this one end is the free end of transmission armset, the transmission armset is extending structure, angle detection mechanism sets up the transmission end at the transmission armset to be connected with the transmission end transmission, angle detection mechanism and controller electric connection.

Furthermore, the guide mechanism comprises guide slide rails with arc structures, one ends of the guide slide rails are fixedly connected with the training pad, and each guide slide rail is provided with a slide groove extending along the arc direction of the guide slide rail; the traction mechanism comprises a first pulley and a traction belt, the first pulley is arranged in the sliding groove and is in sliding fit with the sliding groove, one end of the traction belt is fixedly connected with the first pulley, the other end of the traction belt forms a traction end, the traction end is provided with a traction handle, and a proximity sensor electrically connected with the controller is arranged in the sliding groove.

Further, the angle detection mechanism comprises a bearing table, the transmission end of the transmission arm group is matched with the bearing table in a shaft connection mode, the free end of the transmission arm group is matched with the first pulley in a shaft connection mode, the angle detection mechanism further comprises a pressure detection plate, a gear set and a pressure sensor, the pressure detection plate is in meshed transmission connection with the transmission end of the transmission arm group through the gear set, the pressure detection plate slides in the direction from the front end of the training pad to the rear end of the training pad in the radial direction under the meshing effect, the pressure sensor is arranged on the section of sliding stroke, and the pressure sensor is electrically connected with the controller.

Further, the adjustment slide rail has still been arranged in the outside of training pad, what the plummer can slide sets up on the adjustment slide rail, be provided with on the plummer can be used for and adjust the slide rail outside can dismantle the fastening device who connects.

Further, every still be provided with a buffer gear on the direction slide rail, buffer gear is in the direction slide rail and keeps away from the one end of training pad, buffer gear is including returning the power tooth case, accomodate roller, haulage rope, accomodate the roller and connect on the direction slide rail, the power tooth case can the horizontally sliding setting accomodate roller one end to the epaxial contact disc that is provided with of the power of returning the power tooth case of returning, the contact disc is just right accomodate the one end of roller, the one end and the first pulley fixed connection of haulage rope, the other end of haulage rope freely extends and twines on accomodating the roller, the moving direction of power tooth case is for directly being close or keeping away from accomodate the roller, the afterbody of power tooth case is provided with magnetism and inhales the mechanism, and the external fixation of first pulley is provided with guide mechanism to through guide mechanism and direction slide rail outside sliding fit.

Further, the holding tank of undercut is seted up to the front end of training pad, is provided with the test rod in the holding tank, and the test rod is connected with first pulley, the through-hole has been seted up to the midsection department of test rod, be provided with range sensor in the through-hole, range sensor and controller electric connection.

Further, the traction ends of the two traction belts can be detachably connected in a butt joint mode.

A teaching method based on a training teaching device comprising the training teaching device of claims 1 to 7, comprising the steps of:

step S1: a trainer lies on the training pad, and places the back area near the corresponding shoulder in the accommodating groove;

step S2: the fastening mechanism is released, and the bearing platform is pushed to move along the adjusting slide rail, so that the bearing platform is promoted to correspond to the hip area of the trainer;

step S4: the two traction ends are oppositely pulled to the chest of the trainer in a lying posture of the trainer, and are fixed, so that the two traction belts are stretched straightly, and the two stretched traction belts are used as transmission belts;

step S4: the trainer starts doing sit-up exercise, the upper half of the body starts doing exercise, in the exercise, the transmission strip in the step S4 drives the two first pulleys to move in the sliding groove, at the moment, the first pulleys rotate by taking the hip area of the trainer as a reference center and simultaneously drive the transmission arm group to move together, at the moment, if the lifting action of the sit-up exercise is standard, after the transmission strip is lifted synchronously with the trainer, the transmission strip tends to form a range close to 90 degrees with the ground, under the condition, the angle range of synchronous rotation of the transmission arm group is also in a certain range, on the fixed basis, a detection pressure value is set, such as 80-85 degrees, after the transmission end rotates to the angle range, the pressure detecting plate moves and contacts the sensing end of the pressure sensor, the pressure sensor transmits the detection result to the controller, the controller calculates the rotation angle according to the pressure value, it is determined whether the criteria are met.

Further, the result in step S4 is that the standard is reached, the magnetic attraction mechanism works to cling to the storage roller, and at this time, when the trainer lies down, the storage roller is subjected to a cling force, rotates slowly, i.e. has a certain buffer, and prevents the trainer from leaning backwards due to too much inertia.

Further, the result in the step S4 is that the standard is not met, the magnetic attraction mechanism does not work, so that no buffering effect is provided, the trainer can be subconsciously reminded that the action does not reach the standard and needs to be corrected;

when the trainer lies down after the step S4 is finished, the joint of the detection rod and the first pulley is firstly led to the lowest point of the sliding chute and is contacted with the proximity sensor, the proximity sensor receives a touch signal and transmits the touch signal to the controller, and the controller indicates the distance measuring sensor to work to judge whether the back of the trainer lies down completely;

when the push-up needs to be done, the traction ends are in butt joint, then the trainer is positioned below the transmission strip, and when the push-up movement is performed, the trainer pushes against the transmission strip when the back of the trainer lifts up, so that the first pulley moves in a small amplitude, and the detection requirement is met.

The invention has the beneficial effects that: compared with the prior art, the invention has the following beneficial effects

Firstly, the position of the boss is horizontally adjusted according to the height of a trainer, so that the boss is pulled, then the feet are placed below the leg pressing rod, the height of the leg pressing rod is adjusted by means of a hand-operated lead screw lifting mechanism, the leg pressing rod presses the feet, the sit-up exercise can be smoothly performed, and the leg pressing operation of extra personnel is not needed;

secondly, the two hands of the trainer respectively grasp one traction end, and the two traction ends are oppositely pulled to the chest of the trainer (lying in the process), at the moment, the traction belt is stretched straight to form a transmission belt, and the transmission belt limits two arms of the trainer when the trainer does sit-up movement, so that the phenomenon that one side inclines to the other side to cause the one side to exert excessive force to sit up on one side is prevented;

thirdly, when the trainer does sit-up movement, the transmission belt can move along with the trainer, under the belt of the transmission belt, the first pulley and the transmission arm group are linked, the pressure detection plate can continuously abut against the pressure sensor, the pressure sensor presses the detection spring, the detection result is transmitted to the controller, the controller judges the rotation angle according to the set pressure value, the lowest pressure value is set in advance, the pressure value represents that after the transmission end of the transmission arm group rotates to a certain angle, the pressure detection plate can equally press the pressure sensor, the sitting posture of the trainer reaches the standard, the controller carries out corresponding recording, and the motion data is obtained, namely, which is qualified and which is not qualified;

fourthly, the transmission arm group reaches a preset lowest position rotation angle, the controller judges a signal value returned by the pressure sensor, the signal value reaches the standard and is recorded, the electromagnet is triggered to be electrified, the return force gearbox is used for approaching the storage roller, the storage roller is restrained by the return force gearbox, the rotation is slow, certain buffering is realized, and a trainer is prevented from violently bending back and returning back;

fifthly, if the transmission arm group does not reach the preset lowest position rotation angle, the trainer directly lies down again, the controller judges the signal value returned by the pressure sensor, if the signal value does not reach the standard, the electromagnet is not indicated to work, the return force tooth box does not participate in the work, the traction rope normally moves, and no buffering effect is provided, so that the trainer is timely reminded of the situation that the signal value does not reach the standard and needs to be corrected on subconscious;

sixthly, when the push-up needs to be performed, the traction ends are in butt joint, then a trainer is positioned below the transmission strip, the trainer props against the transmission strip when the back of the trainer lifts, the second pulley moves upwards, and after the second pulley is separated from the contact end of the proximity sensor, the controller receives a return signal of the proximity sensor, so that the action is started, the transmission arm group rotates, the force of the pressure probe plate contacting the pressure sensor is dynamically changed under the rotation angle of the transmission end, the pressure sensor transmits a signal value to the controller, and the controller records the signal value; meanwhile, when the trainer inclines down to the ground, the second pulley contacts the proximity sensor, the proximity sensor transmits an electric signal to the controller, the controller indicates the distance measuring sensor to carry out measuring work and returns the electric signal to the controller, and the controller judges whether the downward-tilting action of the push-up is in place or not, namely whether the push-up action is just 'half-stroke' movement or not;

seventh, the invention can add the display screen, according to the cooperation among every sensor, record the movement times, standard times, nonstandard times and required time, in order to count exercise intensity and movement quality of the trainer;

and eighthly, the hands of the sit-up chair are required to be placed in front of the chest during sit-up, so that a trainer can be assisted to avoid an incorrect movement mode.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 1;

FIG. 4 is an enlarged view at C of FIG. 1;

FIG. 5 is a first schematic plan view of the present invention;

FIG. 6 is a front view of the present invention;

FIG. 7 is an enlarged view at D of FIG. 6;

FIG. 8 is an enlarged view at E of FIG. 6;

FIG. 9 is a second perspective view of the present invention;

FIG. 10 is an enlarged view at F of FIG. 9;

FIG. 11 is a third schematic perspective view of the present invention;

FIG. 12 is an enlarged view at G of FIG. 11;

FIG. 13 is an enlarged view at H of FIG. 11;

FIG. 14 is a second schematic plan view of the present invention;

fig. 15 is an enlarged view at I in fig. 14.

In the figure: 0. a training mat;

1. a guide slide rail; 2. a chute;

3. a first pulley; 4. a traction belt; 5. a drive bar; 6. a traction grip;

7. a bearing table; 8. a pressure probe plate; 9. a first gear; 10. a second gear; 11. a third gear; 12. a pressure sensor; 13. detecting a spring;

14. adjusting the slide rail; 15. adjusting the handle; 16. positioning the bolt; 17. an avoidance groove; 18. positioning a nut; 19. positioning the grip;

20. a first plug-in block; 21. inserting the column; 22. positioning holes; 23. a second insertion block; 24. inserting a pipe; 25. a through hole;

26. a pressing plate; 27. a pressing spring; 28. a positioning column;

29. a transmission arm group;

30. a return force tooth box; 31. a receiving roller; 32. an electromagnet; 33. a contact pad; 34. a permanent magnet; 35. a return spring;

36. a rack plate; 37. a toothed ring;

38. accommodating grooves; 39. a detection lever; 40. a second pulley; 41. a ranging sensor;

42. a boss; 43. a leg pressing rod; 44. hand formula lead screw elevating system.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 15, the training and teaching device for improving the national constitution comprises a controller and a training mat 0, wherein the training mat 0 has a front end and a rear end, two sides of the front end of the training mat 0 are respectively provided with a guide mechanism, each guide mechanism is respectively provided with a traction mechanism, one end of each traction mechanism is in sliding fit with the guide mechanism,

specifically, the sliding direction of the traction mechanism is from bottom to top from the side part of the front end of the training mat 0 and gradually decreases towards the direction of the rear end of the training mat 0 along an arc, and the other end of the traction mechanism is suspended at the opposite side of the two guide mechanisms and forms a traction end for the hand holding of the trainee; training pad 0's front end one side still is provided with angle detection mechanism and transmission armset 29, the one end of transmission armset 29 articulates in the training pad 0 outside to this one end is the transmission end, the other end and the drive of transmission armset 29 are connected, and this one end is the free end of transmission armset 29, transmission armset 29 is extending structure, angle detection mechanism sets up the transmission end at transmission armset 29 to be connected with the transmission end transmission, angle detection mechanism and controller electric connection.

The guide mechanism comprises a guide slide rail 1 with an arc-shaped structure, one end of the guide slide rail 1 is fixedly connected with the training pad 0, and specifically, the other end of the guide slide rail 1 extends in a bending manner from bottom to top and gradually towards the rear end of the training pad 0 to form the arc-shaped structure;

each guide slide rail 1 is provided with a slide groove 2 extending along the arc direction; the traction mechanism comprises a first pulley 3 and a traction belt 4, the first pulley 3 is arranged in the sliding groove 2 and is in sliding fit with the sliding groove 2, one end of the traction belt 4 is fixedly connected with the first pulley 3, the other end of the traction belt constitutes a traction end, the traction end is provided with a traction handle 6, and a proximity sensor electrically connected with the controller is arranged in the lowest point of the sliding groove 2.

The angle detection mechanism comprises a bearing platform 7, the transmission end of a transmission arm group 29 is in shaft connection fit with the bearing platform 7, the free end of the transmission arm group 29 is in shaft connection fit with the first pulley 3, the angle detection mechanism also comprises a pressure probe plate 8, a gear set and a pressure sensor 12,

specifically, the gear set includes a first gear 9, a second gear 10, and a third gear 11, the first gear 9 is fixedly sleeved on the transmission end of the transmission arm set 29, the second gear 10 is coupled to the side of the first gear 9 and engaged with the first gear 9, the second gear 10 is further provided with the third gear 11 coaxially connected with the second gear, the pressure detecting plate 8 is horizontally slidably disposed below the third gear 11, and the pressure detecting plate 8 is provided with a tooth surface for the third gear 11 to engage with, when the third gear 11 rotates counterclockwise, the pressure detecting plate 8 slides from the front end of the training pad 0 to the rear end of the training pad 0 in a radial direction under the engagement action, and the pressure sensor 12 is disposed on the sliding stroke,

specifically, the sensing end of the pressure sensor 12 faces the pressure probe plate 8, a detection spring 13 is arranged on one side of the pressure sensor 12 away from the pressure probe plate 8, the detection spring 13 is elastically connected with the pressure sensor 12, and the pressure sensor 12 is electrically connected with the controller.

The outer side of the training mat 0 is further provided with an adjusting slide rail 14, the bearing platform 7 is slidably arranged on the adjusting slide rail 14,

specifically, the bearing platform 7 can slide on the adjusting slide rail 14 in a reciprocating manner from the front end of the training mat 0 to the rear end of the training mat 0, the bearing platform 7 is provided with a fastening mechanism which can be detachably connected with the outer side of the adjusting slide rail 14,

in particular, the fastening mechanism comprises an adjustment handle 15 arranged on the carrier table 7,

specifically, the fastening mechanism further comprises a positioning bolt 16 arranged on the side of the bearing table 7, an avoiding groove 17 is formed in the side of the adjusting slide rail 14, and the positioning bolt 16 is always located in the avoiding groove 17 and can synchronously slide along with the bearing table 7; the positioning bolt 16 has a part of thread area located outside the avoiding groove 17, and a positioning nut 18 in threaded fit with the positioning bolt 16 is arranged on the part, and a positioning handle 19 is arranged on the positioning nut 18.

Each guide slide rail 1 is also provided with a buffer mechanism, the buffer mechanism is arranged at one end of the guide slide rail 1 far away from the training pad 0, the buffer mechanism comprises a return gear box 30, a receiving roller 31 and a traction rope, the receiving roller 31 is coupled on the guide slide rail 1, the return gear box 30 is arranged at one end of the receiving roller 31 in a horizontal sliding manner, a contact disc 33 is arranged on a return shaft of the return gear box 30, the contact disc 33 is just opposite to one end of the receiving roller 31, one end of the traction rope is fixedly connected with a first pulley 3, the other end of the traction rope freely extends and is wound on the receiving roller 31, the return gear box 30 directly approaches or is far away from the receiving roller 31 in the moving direction, and the tail part of the return gear box 30 is provided with a magnetic attraction mechanism,

specifically, the magnetic attraction mechanism includes a permanent magnet 34,

specifically, the tail of the return tooth box 30 is further provided with a return spring 35 elastically connected thereto, the electromagnet 32 is arranged in the return spring 35, and the electromagnet 32 can have the same magnetism as the permanent magnet 34,

the outer part of the first pulley 3 is fixedly provided with a guide mechanism and is in sliding fit with the outer side of the guide slide rail 1 through the guide mechanism,

specifically, the guide mechanism includes a rack plate 36, the rack plate 36 is capable of sliding back and forth along an arc of the guide rail 1, and a toothed ring 37 is fitted on the outer portion of the receiving roller 31, and the toothed ring 37 is engaged with a tooth surface of the rack plate 36.

The front end of the training mat 0 is provided with a holding groove 38 which is concave downwards, a detection rod 39 is arranged in the holding groove 38, the detection rod 39 is connected with the first pulley 3,

specifically, each sliding chute 2 is further provided with a second pulley 40, the first pulley 3 in each sliding chute 2 is located above the second pulley 40, and the two pulleys are connected through a bracket, two ends of the detection rod 39 are fixedly connected with the two second pulleys 40 respectively,

the middle section of the detection rod 39 is provided with a through hole 25, a distance measuring sensor 41 is arranged in the through hole 25, and the distance measuring sensor is electrically connected with the controller.

The traction ends of the two traction belts can be detachably connected in a butt joint mode,

specifically, the detachable connection is realized in a manner that two of the traction grips 6 are respectively provided with an insertion structure, one of the insertion structures comprises a first insertion block 20 and a plurality of insertion posts 21 fixed on the first insertion block 20, the other one of the insertion structures comprises a second insertion block 23 and a plurality of insertion tubes 24 fixed on the second insertion block 23, all the insertion tubes 24 are respectively in one-to-one insertion fit with all the insertion posts 21, wherein a pressing plate 26 is arranged above the second insertion block 23, the pressing plate 26 is elastically connected with the top of the second insertion block 23 through a plurality of pressing springs 27, a plurality of positioning posts 28 are further arranged above the second insertion block 23, all the insertion tubes 24 are respectively in one-to-one correspondence with all the positioning posts 28, each insertion tube 24 is respectively provided with a through hole 25 for the positioning post 28 at the position of the insertion tube to be vertically inserted into, all the positioning columns 28 are fixedly connected with the pressing plate 26, all the positioning columns 28 can respectively correspond to all the inserting columns 21 one by one, and the front end of each inserting column 21 is respectively provided with one positioning hole 22.

Specifically, the rear end top of training pad 0 is provided with can be directly towards the gliding boss 42 of training pad 0 front end, be provided with on the boss 42 and be horizontally leg pressing rod 43, leg pressing rod 43 can vertical activity through hand formula lead screw elevating system 44.

Specifically, the first pulley 3, the second pulley 40, and the rack plate 36 are made of a lightweight material.

A teaching method based on a training teaching device comprises the following steps:

step S1: the trainer lies on the training mat 0 and places the back area near the corresponding shoulder at the position of the accommodating groove 38;

step S2: the position of the boss 42 is horizontally adjusted according to the height of a trainer, the boss 42 is pulled for the purpose, then the two feet are placed below the leg pressing rod 43, and the height of the leg pressing rod 43 is adjusted by the hand-operated lead screw lifting mechanism 44, so that the leg pressing rod presses the two feet;

step S3: step S2: the fastening mechanism is released, the adjusting handle 15 is held by hand, and the bearing platform 7 is pushed to move along the adjusting slide rail 14, so that the bearing platform 7 corresponds to the hip area of the trainer;

step S4: the two hands of the trainer respectively grasp one traction end, the two traction ends are oppositely pulled to the chest of the trainer in the lying posture of the trainer, and the two traction ends are fixed, so that the two traction belts 4 are stretched straightly, and the two stretched traction belts 4 are used as transmission strips 5;

step S5: when the trainer starts doing sit-up exercise, the upper half of the body starts doing exercise, in the exercise, the transmission strip 5 described in step S4 will bring the two first pulleys 3 to move in the chute 2, at this time, the first pulleys 3 rotate around the hip area of the trainer as the reference center, and at the same time, the transmission arm set 29 is taken to move together, at this time, if the sit-up raising action is standard, after the transmission strip 5 is raised synchronously with the trainer, it will tend to form a range close to 90 ° with the ground, in this case, the angle range of synchronous rotation of the transmission arm set 29 is also in a certain range, on this fixed basis, a detection pressure value is set, such as 80-85 °, after the transmission end rotates to this angle range, the pressure detecting plate 8 will move and contact the sensing end of the pressure sensor 12, the pressure sensor 12 will transmit the detection result to the controller, the controller calculates the rotation angle according to the pressure value and judges whether the rotation angle reaches the standard or not;

the result in the step S5 is that the standard is reached, the magnetic attraction mechanism works to cling to the receiving roller 31, and at this time, when the trainer lies down, the receiving roller 31 is subjected to a cling force and rotates slowly, i.e. has a certain buffer, so that the trainer is prevented from bending backwards due to too large inertia;

the result in the step S5 is that the standard is not reached, the magnetic attraction mechanism does not work, so that no buffer effect is provided, the trainer can be reminded subconsciously, and the action does not reach the standard and needs to be corrected;

when the trainer lies down after the step S5 is finished, the joint of the detection rod 39 and the first pulley 3 leads to the lowest point of the chute 2 and contacts the proximity sensor, the proximity sensor receives the touch signal and transmits the touch signal to the controller, and the controller instructs the distance measuring sensor 41 to work to judge whether the back of the trainer lies down completely;

when needing to do push-up, will draw the end butt joint, then the training person is in transmission strip 5 below, when carrying out the push-up motion, the training person pushes against transmission strip 5 when the back lifts up the action, impels 3 small amplitude movements of first pulley, has reached the detection demand.

The working principle of the invention is as follows: the trainer lies on the training mat 0 and places the back area near the corresponding shoulder at the position of the accommodating groove 38; then, the adjusting handle 15 is held by hand, the plummer 7 is pushed by the handle to move along the adjusting slide rail 14, the plummer 7 is promoted to correspond to the hip area of the trainer, then the positioning handle 19 is held by hand, the positioning nut 18 is rotated for 90 degrees, the positioning nut 18 is promoted to displace along the axis of the positioning bolt 16, the side surface of the positioning nut 18 is further tightly contacted with the side surface of the adjusting slide rail 14, and the plummer 7 is acted;

the position of the boss 42 is horizontally adjusted according to the height of a trainer, so that the boss 42 is pulled, then the two feet are placed below the leg pressing rod 43, and the height of the leg pressing rod 43 is adjusted by the hand-operated lead screw lifting mechanism 44, so that the leg pressing rod presses the two feet;

then, the trainee respectively grasps one traction end by two hands, and pulls the two traction ends to the chest of the trainee in opposite directions (at this time, the trainee lies down), at this time, the traction belt 4 is stretched straight, then the plug-in post 21 on the first plug-in block 20 is manually inserted into the plug-in tube 24 on the second plug-in block 23, before the insertion, the manual thumb abuts against the pressing plate 26 to promote the pressing plate 26 to be lifted, namely, the positioning post 28 is separated from the through hole 25 in advance, after the plug-in post 21 is inserted into the plug-in tube 24, the pressing plate 26 is manually released, under the reaction force of the pressing spring 27, the positioning post 28 enters the plug-in tube 24 through the corresponding through hole 25 and falls into the front end of the plug-in post 21 through the positioning hole 22, and the plug-in post 21 is locked in the horizontal direction;

at the moment, the two traction belts 4 are stretched straightly, the two traction ends are respectively positioned at the left hand and the right hand of a human, the two stretched straight traction belts 4 are used as the transmission strip 5 at the moment, then the body starts to do sit-up movement, the upper half of the body starts to move, the transmission strip 5 can drive the two first pulleys 3 to move in the sliding chute 2 during movement, the first pulleys 3 do arc movement at the moment, and the central point is in the hip area of a trainer;

when the first pulley 3 moves, the transmission arm set 29 is driven to move together, the transmission arm set 29 is of a telescopic structure, the transmission end of the transmission arm set 29 is hinged with the bearing platform 7, the free end of the transmission arm set 29 rotates along with the transmission arm set 29, the transmission arm set 29 is telescopic and matched with the stroke, the transmission end of the transmission arm set 29 rotates under the telescopic linkage action of the transmission arm set 29, the first gear 9 synchronously rotates along with the transmission end of the transmission arm set 29, the first gear 9 is meshed with the second gear 10, the second gear 10 drives the third gear 11 to rotate, the third gear 11 is meshed with the pressure detecting plate 8, the pressure detecting plate 8 horizontally slides, and the sliding direction faces the pressure sensor 12;

at this time, if the lifting action of the sit-up is standard, after the transmission strip 5 is lifted synchronously with the trainer, the transmission strip and the ground are bound to form 90 degrees, under the condition, the angle range of synchronous rotation of the transmission arm group 29 is also fixed, a lowest pressure value is set on the fixed basis, only after the transmission end of the transmission arm group 29 rotates to the angle, the pressure detecting plate 8 moves and contacts with the sensing end of the pressure sensor 12, the pressure sensor 12 transmits the detection result to the controller, and the controller records the detection result;

when the first pulley 3 moves, the second pulley 40 is driven to move together, and the second pulley 40 mainly cooperates with the proximity sensor to detect whether a target is in place;

when the first pulley 3 moves in an ascending way, the rack plate 36 can be driven to move along the sliding chute 2, the rack plate 36 is meshed with the toothed ring 37, and under the meshing action, the toothed ring 37 rotates to achieve the effect of accommodating the traction rope and prevent the traction rope from arching outwards;

there are two cases as follows:

firstly: if the transmission arm set 29 does not reach the preset lowest position rotation angle, the trainer directly lies down again, and the controller judges the signal value returned by the pressure sensor 12 without recording;

secondly, the method comprises the following steps: the transmission arm set 29 reaches a preset lowest position rotation angle, the controller judges and records a signal value returned by the pressure sensor 12, the signal value reaches the standard and is input, the electromagnet 32 is triggered to be electrified, after the electromagnet 32 is electrified, the magnetism of the electromagnet is the same as that of the permanent magnet 34, the return force gearbox 30 is acted to approach the storage roller 31, the plate surface of the contact plate 33 is made to contact the end surface of the storage roller 31 to form close contact, therefore, when a trainer lies down, the storage roller 31 is restrained by the return force gearbox 30, the rotation is slow, certain buffering is achieved, the trainer can be prevented from bending backwards and returning violently, the other point is that the trainer lies down if the action does not reach the standard, the electromagnet 32 does not work, the working process is not exist, the buffering effect is not achieved, the trainer can be reminded on subconsciously, the action does not reach the standard, and the correction is needed;

when the trainer lies down again, firstly the second pulley 40 leads to the lowest point position of the chute 2, the second pulley 40 contacts with the proximity sensor, the proximity sensor receives the touch signal and transmits the touch signal to the controller, and the controller indicates the distance measuring sensor 41 to work, mainly checks whether the back of the trainer lies down completely or not, prevents the back of the trainer from not lying down completely, and starts to do the action of raising up again;

the return force gearbox 30 can be replaced by other buffer structures, for example, a disc body with a large friction surface requires more labor in rotation;

the bearing table 7 can be adjusted in a sliding manner, so that the bearing table can be matched with trainers with different heights for use, and even if the heights are different, the bearing table 7 is adjusted to the hip of the trainers, so that the rotating direction and the angle of the transmission arm set 29 are always constant due to the limitation of standard actions;

when the push-up needs to be done, the traction ends are in butt joint, then a trainer is positioned below the transmission strip 5, when the push-up is done, the trainer pushes the transmission strip 5 when the back of the trainer lifts up to move, the first pulley 3 and the second pulley 40 are driven to move in a small amplitude, the second pulley 40 moves upwards, after the second pulley is separated from the contact end of the proximity sensor, the controller receives a return signal of the proximity sensor, which means that the action is started, the transmission arm group 29 rotates subsequently, the force of the pressure probe plate 8 contacting the pressure sensor 12 is also dynamically changed under the rotation angle of the transmission ends, the pressure sensor 12 transmits a signal value to the controller, and the controller records the signal value; meanwhile, when the trainer inclines down to the ground, the second pulley 40 contacts the proximity sensor, the proximity sensor transmits an electric signal to the controller, the controller instructs the distance measuring sensor 41 to carry out measuring work and returns the electric signal to the controller, and the controller judges whether the downward tilting action of the push-up is in place, namely whether the push-up action is just 'half-way' movement.

The invention can be additionally provided with a display screen, and the exercise intensity and the exercise quality of the trainer can be counted by recording the exercise times, the standard times, the non-standard times and the required time according to the cooperation among all the sensors;

in the invention, the pressure sensor adopts PT124G-111 model; the controller adopts CP2E-N14DR-A model; the distance measuring sensor adopts a model L3/L3 s; the proximity sensor is of an LJ12A3-4 embedded type.

It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims (8)

1. A training and teaching device for improving the national constitution is characterized by comprising a controller and a training pad (0), wherein the training pad (0) is provided with a front end and a rear end, two sides of the front end of the training pad (0) are respectively provided with a guide mechanism, each guide mechanism is respectively provided with a traction mechanism, one end of each traction mechanism is in sliding fit with the corresponding guide mechanism, and the other end of each traction mechanism is suspended on one opposite side of the two guide mechanisms to form a traction end for a trainer to hold; an angle detection mechanism and a transmission arm group (29) are further arranged on one side of the front end of the training pad (0), one end of the transmission arm group (29) is hinged to the outer side of the training pad (0) and is a transmission end, the other end of the transmission arm group (29) is in transmission connection with a traction mechanism, the other end of the transmission arm group is a free end of the transmission arm group (29), the transmission arm group (29) is of a telescopic structure, the angle detection mechanism is arranged at the transmission end of the transmission arm group (29) and is in transmission connection with the transmission end, and the angle detection mechanism is electrically connected with the controller;

the guide mechanism comprises guide slide rails (1) with arc-shaped structures, one ends of the guide slide rails (1) are fixedly connected with the training pads (0), and each guide slide rail (1) is provided with a sliding chute (2) extending along the arc direction of the guide slide rail; the traction mechanism comprises a first pulley (3) and a traction belt (4), the first pulley (3) is arranged in the sliding groove (2) and is in sliding fit with the sliding groove (2), one end of the traction belt (4) is fixedly connected with the first pulley (3), the other end of the traction belt forms a traction end, the traction end is provided with a traction handle (6), and a proximity sensor electrically connected with the controller is arranged in the sliding groove (2);

the angle detection mechanism comprises a bearing table (7), the transmission end of a transmission arm set (29) is in shaft connection fit with the bearing table (7), the free end of the transmission arm set (29) is in shaft connection fit with a first pulley (3), the angle detection mechanism further comprises a pressure detection plate (8), a gear set and a pressure sensor (12), the pressure detection plate (8) is in meshed transmission connection with the transmission end of the transmission arm set (29) through the gear set, the pressure detection plate (8) slides in the direction of the rear end of a front end radial straight training pad (0) of the self-training pad (0) under the meshing effect, the pressure sensor (12) is arranged on the section of sliding stroke, and the pressure sensor (12) is electrically connected with a controller.

2. The training and teaching device for improving the physique of the people according to claim 1, wherein an adjusting slide rail (14) is further arranged on the outer side of the training pad (0), the bearing platform (7) is slidably arranged on the adjusting slide rail (14), and a fastening mechanism which can be detachably connected with the outer side of the adjusting slide rail (14) is arranged on the bearing platform (7).

3. The training and teaching device for improving the physique of the people according to claim 2, wherein a buffer mechanism is further arranged on each guide slide rail (1), the buffer mechanism is arranged at one end of the guide slide rail (1) far away from the training pad (0), the buffer mechanism comprises a return tooth box (30), a receiving roller (31) and a traction rope, the receiving roller (31) is connected to the guide slide rail (1) in an axial mode, the return tooth box (30) can be horizontally and slidably arranged at one end of the receiving roller (31), a contact disc (33) is arranged on a return shaft of the return tooth box (30), the contact disc (33) is opposite to one end of the receiving roller (31), one end of the traction rope is fixedly connected with the first pulley (3), the other end of the traction rope freely extends and is wound on the receiving roller (31), and the return tooth box (30) moves in a direction directly approaching to or far away from the receiving roller (31), the tail of the return gear box (30) is provided with a magnetic attraction mechanism, and the outer part of the first pulley (3) is fixedly provided with a guide mechanism and is in sliding fit with the outer side of the guide sliding rail (1) through the guide mechanism.

4. The training and teaching device for improving the physique of the people as claimed in claim 3, wherein a downward-recessed accommodating groove (38) is formed in the front end of the training pad (0), a detection rod (39) is arranged in the accommodating groove (38), the detection rod (39) is connected with the first pulley (3), a through hole (25) is formed in the middle section of the detection rod (39), a distance measuring sensor (41) is arranged in the through hole (25), and the distance sensor is electrically connected with the controller.

5. A training and teaching device for improving national physical fitness according to claim 2, wherein the traction ends of the two traction belts are detachably connected in a butt-joint manner.

6. A teaching method based on a training teaching device, comprising the training teaching device of any one of claims 1 to 5, characterized in that: the method comprises the following steps:

step S1: the trainer lies on the training pad (0) and places the back area near the corresponding shoulder at the position of the accommodating groove (38);

step S2: the fastening mechanism is released, and the bearing platform (7) is pushed to move along the adjusting slide rail (14), so that the bearing platform (7) corresponds to the hip area of the trainer;

step S3: the two traction ends are oppositely pulled to the chest of the trainer in a lying posture of the trainer, and are fixed, so that the two traction belts (4) are stretched straightly, and the two stretched traction belts (4) are used as transmission bars (5);

step S4: when the trainer starts to do sit-up exercise, the upper body starts to move, in the exercise, the transmission strip (5) in the step S4 drives the two first pulleys (3) to move in the sliding chute (2), at the moment, the first pulley (3) rotates by taking the hip area of the trainer as a reference center, and simultaneously drives the transmission arm set (29) to move together, at the moment, if the lifting action of the sit-up exercise is standard, after the transmission strip (5) is lifted synchronously along with the trainer, the transmission strip and the ground tend to form a range close to 90 degrees, under the condition that the angle range of synchronous rotation of the transmission arm set (29) is also in a certain range, under the fixed basis, a detection pressure value is set, for example, 80-85 degrees, after the transmission end rotates to the angle range, the pressure probe plate (8) can move and contact with the sensing end of the pressure sensor (12), the pressure sensor (12) transmits the detection result to the controller, and the controller calculates the rotation angle according to the pressure value and judges whether the rotation angle reaches the standard or not.

7. A teaching method based on a training teaching device as claimed in claim 6, wherein the result of step S4 is that the standard is reached, the magnetic attraction mechanism works to cling to the receiving roller (31), and when the trainer lies down, the receiving roller (31) is pressed tightly and rotates slowly, i.e. has a certain buffer, to prevent the trainer from bending backward due to too much inertia.

8. The teaching method based on the training teaching device of claim 7, wherein the result of step S4 is that the standard is not met, the magnetic attraction mechanism does not work, so there is no buffering effect, and the trainer is subconsciously reminded that the action is not up to standard and needs to be corrected;

when the trainer lies down after the step S4, the joint of the detection rod (39) and the first pulley (3) leads to the lowest point of the chute (2) and contacts the proximity sensor, the proximity sensor receives the touch signal and transmits the touch signal to the controller, and the controller indicates the distance measuring sensor (41) to work to judge whether the back of the trainer lies down completely;

when needing to do push-up, will draw the end butt joint, then the training person is in transmission strip (5) below, when carrying out the push-up motion, the training person pushes up transmission strip (5) when the action is lifted to the back, impels first pulley (3) small amplitude motion, has reached the detection demand.

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