CN113082669B

CN113082669B - Gravity center assisting and stabilizing teaching aid for snowboarding

Info

Publication number: CN113082669B
Application number: CN202110453023.8A
Authority: CN
Inventors: 安婧; 刘志睿; 宁博文; 肖世成; 武俸羽
Original assignee: Harbin Institute of Physical Education
Current assignee: Harbin Institute of Physical Education
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2022-02-15
Anticipated expiration: 2041-04-26
Also published as: CN113082669A

Abstract

The invention relates to the technical field of skiing equipment, in particular to a gravity center assisting and stabilizing teaching aid for single-board skiing, which comprises a ski body, wherein two ski boots are symmetrically arranged on the ski body, a teaching aid board is detachably arranged at the top of the ski body, an avoiding groove for avoiding the ski boots is formed in the teaching aid board, two traction mechanisms are respectively arranged outside two ends of the teaching aid board and are respectively and elastically connected with the teaching aid board through a first elastic component, the two traction mechanisms can move in opposite directions or in opposite directions, a holding mechanism capable of being vertically and movably adjusted is arranged in the upper area of each traction mechanism, and a detachable boosting mechanism is arranged at the tail part of the ski body. The invention can stably assist beginners in skiing exercise, reduce the falling frequency and prevent abandonment caused by overhigh difficulty in the early stage.

Description

Gravity center assisting and stabilizing teaching aid for snowboarding

Technical Field

The invention relates to the technical field of skiing equipment, in particular to a gravity center assisting and stabilizing teaching aid for single-board skiing.

Background

Harbin relies on its unique weather environment, has many famous large-scale skiing places, because have these large-scale skiing places, has promoted skiing winter camp promptly, skiing winter camp is a skiing campaign, is the best motion in winter, sheathes in the ski, flies in the white world, experiences speed and skill. This movement allows the body parts to work in unison, resulting in increased flexibility of the body, but the greatest appeal of skiing sports is that people can experience a feeling of returning to nature from the middle of the sport.

Skiing sports are classified into snowboarding and double-boarding, and snowboarding is a winter sport evolved from skateboarding and surfing. The sport mainly has three types: alpine skateboards, freestyle skateboards, and ski-cross.

The single-board skiing is a movement with a higher threshold, and the single-board skiing depends on a slope to slide more, so that the learning of beginners is not facilitated, and the specific reason is that the stability of the gravity center of some beginners is difficult to guarantee in the early stage, so that the problem of rollover and the like can be caused when the gravity center deviates greatly; for frequent planting, the self-confidence of beginners is very easy to be struck, and the probability of injury is greatly improved.

According to the above problems, by searching for application No.: CN201810499271.4 single board skiing training method, through performing single board skiing learning on gentle snowfield, the pedal positions at the front end and the rear end of the ski are both provided with circular through holes, a power output assembly is nested in each circular through hole, the two power output assemblies can rotate independently, the upper ends of the two power output assemblies are respectively connected with a first fixer and a second fixer, the two power output assemblies are respectively connected with the power assembly through a transmission assembly, the power assembly is arranged at the gravity center position of the ski, thereby realizing that the single board ski can slide on a relatively flat and slow snow surface by enabling the power output assemblies to provide auxiliary power for the single board ski through the power assemblies and the transmission assemblies, facilitating beginners to adapt to the single board skiing, avoiding danger on a relatively large slope, and controlling the steering power output assembly through feet, the beginner can conveniently learn the skill of snowboarding.

The technical scheme has the following disadvantages: the power assembly is fixedly arranged at the bottom of the single plate, so that the weight of the single plate is greatly increased, and the single plate is inconvenient to carry;

meanwhile, the bottom of the single plate is contacted with the ground by the crawler belt, but the real bottom surface of the single plate is not contacted with the snow ground, so that the contact with the conventional single plate can not adapt after the transition of a beginner is finished, and the sliding force generated when the real bottom surface of the single plate is contacted with the snow ground is inconsistent with the contact of the crawler belt;

in addition, the coupling degree of the single board and the power assembly is very high, the single board and the power assembly need a complex assembly process, the later maintenance is very difficult, and if the power assembly is damaged, the single board cannot be used as a conventional single board.

Disclosure of Invention

The invention aims to provide a gravity center assisting and stabilizing teaching aid for snowboarding.

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

the gravity center auxiliary stabilizing teaching aid for the snowboarding movement comprises a skateboard body, wherein two skateboard boots are symmetrically arranged on the skateboard body, and the gravity center auxiliary stabilizing teaching aid is characterized in that a teaching aid board is detachably arranged at the top of the skateboard body, a avoiding groove for avoiding the skateboard boots is formed in the teaching aid board, two traction mechanisms are respectively arranged outside two ends of the teaching aid board and are respectively and elastically connected with the teaching aid board through a first elastic component, the two traction mechanisms can move in the opposite direction or in the opposite direction, a holding mechanism capable of being vertically movably adjusted is arranged in the upper area of each traction mechanism, a detachable boosting mechanism is arranged at the tail of the skateboard body, each traction mechanism respectively comprises two traction columns, and all the traction columns are arranged in a rectangular shape; a first gravity center traction guide area is formed between the two traction columns positioned at one end of the teaching aid board; the two first elastic components are symmetrically arranged on the teaching aid board and respectively correspond to a first gravity center traction guiding area, each first elastic component is connected with two traction columns in the corresponding first gravity center traction guiding area, each first elastic component comprises two traction ropes and a plurality of traction wheels which are arranged on the teaching aid board at intervals along the long edge direction of the skateboard body, all the traction wheels in each first elastic component form a guiding group, the traction wheel at the middle point position in the guiding group is a return wheel, each traction wheel can rotate around the axis of the traction wheel, one end of each traction rope is fixedly connected with one traction column, the other end of each traction rope is oppositely close to the return wheel from two ends of each traction wheel group respectively, and each traction wheel is sequentially wound around in the process of closing, finally, the traction rope is wound on the return wheel respectively in the clockwise direction and the anticlockwise direction, and the traction rope is always in a tight state; and a traction torsion spring is arranged at the rotating part of the return wheel.

Further, every pull the post and be hollow structure to every top of pulling the post all is uncovered, pull the internal surface of post and set up along its axially extended first screw thread, the internal surface of pulling the post is provided with rather than screw-thread fit's regulation pole, the top of adjusting the pole extends to the top of pulling the post, the outside of pulling the post still is provided with the stay tube, the stay tube with pull a coaxial line to sliding fit between the internal surface of stay tube and the surface of pulling the post, the top and the stay tube coupling cooperation of pulling the post, grab and hold the mechanism setting and adjust between two poles that are located teaching aid board one end.

Furthermore, a second centrobaric traction guide area is formed between the two adjusting rods positioned at one end of the teaching aid plate; each second gravity center traction guide area is provided with a positioning belt used for covering the knee area of an athlete on the skateboard body, and the positioning belt is elastically connected with the supporting pipe at the position of the positioning belt through a second elastic component; a waistband for binding the waist of the athlete can be formed between the two positioning belts.

Furthermore, a sleeve disc is sleeved outside each supporting tube, a containing tube is arranged below the sleeve disc, a space is reserved between the inner surface of the containing tube and the outer surface of the supporting tube, the upper end of the containing tube is rotatably connected with the lower end of the sleeve disc and can independently rotate around the axis of the containing tube, the outer diameter of the upper end of the containing tube is larger than the outer diameter of the lower end of the sleeve disc, a pressing tube is arranged outside the sleeve disc, second threads are arranged on the outer surface of the sleeve disc, the pressing tube is in threaded connection with the sleeve disc through the second threads, and the end face of the lower end of the pressing tube can be tightly contacted with the end face of the upper end of the containing tube; the second elastic component is connected with the storage barrel.

Furthermore, the second elastic component comprises two return force belts, the two return force belts are fixedly wound on the two storage barrels respectively, and the other ends of the two return force belts are intersected and fixedly connected with the outer parts of the positioning belts; and a third thread is formed on the outer part of the supporting tube, and the sleeve disc is in threaded connection with the outer part of the supporting tube through the third thread.

A teaching method of snowboarding movement comprises the following steps:

step S1: the teaching aid board is arranged on the skateboard body, and then two adjusting rods at one end of the teaching aid board are synchronously shifted to rotate according to different body lengths of users, so that the height of the grasping mechanism is adjusted; in addition, the height of the return belt is adjusted by the sleeve disc;

step S2: according to different user's shank thicknesses, rotate the containing barrel, unreel the return belt, realize return belt length adjustment promptly to make the location area when fully cladding user's shank, the return belt is the tight state of certain limit, can not too lax or too tight, through the compression cylinder rotation locking containing barrel after finishing adjusting.

When the stabilizing teaching aid is used in a practice court on a horizontal plane, the two positioning belts are respectively tightened on the two knees of a user; under the action of the boosting mechanism, a user stands on the skateboard body to do translational sliding exercise along the exercise field on the horizontal plane; in the translation process, a user can control the small-amplitude steering of the skateboard body by using two feet.

When stabilizing the teaching aid and being used in the exercise place that both ends are domatic structure, integrate into two location areas and become the beam waist area that is used for tightening user's waist, unload the boosting mechanism in advance, do not adopt the boosting mechanism to choose one leg contact ground of user for use as the driving source, order about the whole slip, the direction is towards both ends for the exercise place of domatic structure, and get into by the one end in this exercise place, and slide to another domatic along its domatic, with this reciprocal, simulate the landslide scene of ski.

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

firstly, the coupling of the ski board and the propeller is very low, so that the use of the ski board is not limited by the propeller; meanwhile, the influence on the self structure of the skiing veneer is small;

secondly, the skiing single plate adopts the traction rope as a return force foundation, so that the traction mechanism can be folded and stored, and the skiing single plate and the propeller can be detached, namely the skiing single plate is convenient to carry and store;

thirdly, the invention can be matched with a gripping mechanism which can be vertically adjusted, a return force belt and a positioning belt which have elastic characteristics, a sleeve disc and a pressing cylinder, so that the invention can be suitable for trainers with different heights and shapes;

fourthly, the knee parts can be tightened by the grip mechanism, the elastic return force belt and the positioning belt, so that the stability of the center of gravity of a trainer during smooth movement exercise in a plane field can be ensured, and the problems that a beginner is poor in body balance feeling due to rapid sliding of the skateboard, is not suitable for standing on the skateboard and is easy to fall down due to the fact that the upper half body of the trainer can incline unconsciously due to fear and the center of gravity of the skateboard deviates during inclining backwards in the face of visual impact brought by the moving skateboard can be prevented;

fifthly, the invention can remove the propeller, and simultaneously tighten the waist part according to the grasping mechanism, the elastic return force belt and the positioning belt, thereby ensuring that a trainer can drive the slide plate to move to the corresponding exercise field by stepping on the feet when the trainer is in the exercise field with a slope structure, and simultaneously ensuring the stability of the gravity center when the trainer exercises the slope movement, so as to reduce the probability of lodging;

the guide arm and the backer block are arranged, so that a trainer can dynamically select and release the grip according to the actual situation of the trainer during training, namely the trainer does not depend on the grip, the cross bar and the traction mechanism to keep self balance; if the user tries to release the handle, when the user cannot ensure self balance, the user can quickly and continuously hold the handle to keep balance, and meanwhile, the handle is always in the range which can be controlled by the user due to the acting force of the traction mechanism and cannot automatically slide to be separated from the area which cannot be controlled by the user; when the guide arm of the invention definitely limits the horizontal movement of the guide post, the free end of the guide arm can be forced to indirectly rotate along with the horizontal movement of the guide post, and the maximum angle of the rotating range is 15 degrees, namely indirectly expresses the limitation of the horizontal moving stroke of the guide post, and in addition, the setting range can ensure that the guide arm cannot topple in the direction far away from the teaching aid board; meanwhile, the arrangement of the mountain block can ensure that the traction column cannot topple over after the grip is manually released;

seventh, when the bottom of the sliding plate in the invention abandons a driving element and can realize automatic movement, the bottom of the sliding plate can be actually contacted with the ground, and the real environment is matched with a trainer during training, so that the use scene and feeling of the trainer are basically consistent when the trainer uses a normal sliding plate after the training is finished, and the situation of inadaptation cannot occur.

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 a top view of the present invention;

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

FIG. 6 is an enlarged view at C of FIG. 5;

FIG. 7 is a front view of the present invention;

FIG. 8 is a third schematic perspective view of the present invention;

FIG. 9 is an enlarged view at D of FIG. 8;

FIG. 10 is an enlarged view at E of FIG. 8;

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

FIG. 12 is a schematic partial perspective view of the present invention;

FIG. 13 is an enlarged view at F of FIG. 12;

fig. 14 is a schematic view of the practice court in the slope configuration of the present invention in a training position.

In the figure: 0. a skateboard body;

1. a teaching aid board; 2. an avoidance groove;

3. a traction column; 4. adjusting a rod; 5. supporting a tube; 6. a guide post; 7. a roller;

8. a hauling rope; 9. a traction wheel; 10. a return wheel;

11. a cross bar; 12. a grip;

13. a tensioning block;

14. a positioning belt; 15. bonding the end; 16. a length adjustment end; 17. an opening; 18. a force return belt;

19. sleeving a disc; 21. a storage cylinder; 22. a compression cylinder;

23. a guide arm; 24. a chute; 25. positioning blocks; 26. a backer block;

27. a boosting plate; 28. a support plate; 29. a bolt group;

30. a connecting arm; 31. connecting blocks; 32. a convex strip;

33. a fork arm;

34. a traction torsion spring;

35. a third thread.

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 14 show that a focus assists stabilizes teaching aid for veneer skiing sports, including slide body 0, the symmetry is provided with two slide boots on slide body 0, the installation that can dismantle at 0 top of slide body installs teaching aid board 1, offer the groove 2 of dodging that is used for dodging slide boots on the teaching aid board 1, be provided with a drive mechanism, two outside the both ends of teaching aid board 1 respectively drive mechanism is respectively through a first elastomeric element and 1 elastic connection of teaching aid board, two drive mechanism can move dorsad or dorsad in opposite directions, every drive mechanism's upper portion region is equipped with can vertical activity regulation grab the mechanism of holding, slide body 0's afterbody is provided with detachable boosting mechanism.

Each traction mechanism comprises two traction columns 3 respectively, and all the traction columns 3 are arranged in a rectangular shape; a first gravity center traction guide area is formed between the two traction columns 3 positioned at one end of the teaching aid board 1; two first elastic component symmetrical arrangement is on teaching aid board 1 to the two is corresponding to a first focus respectively and pulls the guide area, every first elastic component is connected with two traction columns 3 in its first focus that corresponds pulls the guide area.

The first elastic component comprises two traction ropes 8 and a plurality of traction wheels 9 which are arranged on the teaching aid board 1 at intervals along the long side direction of the skateboard body 0, all the traction wheels 9 in each first elastic component form a guide group, the traction wheel 9 at the middle point position in the guide group is a return wheel 10, each traction wheel 9 can rotate around the axis of the traction wheel 9, one end of each traction rope 8 is fixedly connected with one traction column 3, the other end of each traction rope 8 is close to the return wheel 10 in opposite directions from the two ends of the traction wheel group, and sequentially bypasses each traction wheel 9 in the closing process, and finally is wound on the return wheel 10 in the clockwise direction and the anticlockwise direction, and the traction ropes 8 are always in a tight state; a traction torsion spring 34 is arranged at the rotating part of the return wheel 10;

each hauling rope 8 is arranged in a roundabout way; the circuitous bent part of the hauling rope 8 in one of the two first elastic components corresponds to the heel part of the skateboard boot on the skateboard body 0, a tensioning block 13 is arranged at the circuitous bent part of the hauling rope 8, a thread passing hole for the hauling rope 8 to pass through is formed in the tensioning block 13, and the tensioning block 13 is used for tensioning the hauling rope 8; a wire passing groove for embedding a traction rope 8 in the other first elastic component is formed in the teaching aid board 1; this facilitates the integral mounting of the resilient member.

Every pull post 3 and be hollow structure to every top of pulling post 3 all is uncovered, pull the internal surface of post 3 and set up along its axially extended first screw thread, the internal surface of pulling post 3 is provided with adjusts pole 4 rather than screw-thread fit, the top of adjusting pole 4 extends to the top of pulling post 3, the outside of pulling post 3 still is provided with stay tube 5, stay

tube

5 and 3 coaxial lines of traction post to sliding fit between the internal surface of stay tube 5 and the surface of pulling post 3, the top of pulling post 3 and the cooperation of 5 couplings of stay tube, grab and hold the mechanism setting and adjust between 4 at two that are located teaching aid board 1 one end.

A second centrobaric traction guide area is formed between the two adjusting rods 4 positioned at one end of the teaching aid board 1; each second centrobaric traction guiding area is provided with a positioning belt 14 used for covering the knee area of an athlete on the skateboard body 0, and the positioning belt 14 is elastically connected with the supporting tube 5 at the position thereof through a second elastic component; a waistband for binding the waist of the athlete can be formed between the two positioning belts 14;

the positioning belt 14 is provided with two free ends which are respectively an adhesive end 15 and a length adjusting end 16 with an opening 17, and the adhesive end 15 passes through the length adjusting end 16 through the opening 17, so that the positioning belt 14 can form a positioning annular belt; the bonding ends 15 and the length adjusting ends 16 of the two positioning belts 14 are arranged in a staggered manner, so that a waistband for binding the waist of the athlete can be formed between the two positioning belts 14; the second elastic component can be vertically movably connected with the supporting tube 5; the user faces to one side of the skateboard body 0, and the positioning belt 14 is covered on the knee area through the bonding end 15 and the length adjusting end 16 of the positioning belt 14 and is tightly tied;

in addition, the structure is added, the use mode of the invention can be flexibly adjusted, for example, the booster is directly abandoned, the bonding end 15 of the two positioning belts 14 is butted with the length adjusting end 16 to form the positioning belt 14 for tightening the waist of the trainer, at the moment, the knees are not tightened, so that the other leg of the user can contact the ground to achieve the driving effect, and the main purpose is that after the booster is abandoned, the user can drive the skateboard to move through the own leg, and the skateboard can enter the landslide.

A sleeve disc 19 is sleeved outside each support tube 5, a containing cylinder 21 is arranged below the sleeve disc 19, a space is reserved between the inner surface of the containing cylinder 21 and the outer surface of the support tube 5, the upper end of the containing cylinder 21 is rotatably connected with the lower end of the sleeve disc 19, the containing cylinder 21 can independently rotate around the axis of the containing cylinder 21, the outer diameter of the upper end of the containing cylinder 21 is larger than the outer diameter of the lower end of the sleeve disc 19, a pressing cylinder 22 is arranged outside the sleeve disc 19, second threads are arranged on the outer surface of the sleeve disc 19, the pressing cylinder 22 is in threaded connection with the sleeve disc 19 through the second threads, and the end face of the lower end of the pressing cylinder 22 can be tightly contacted with the end face of the upper end of the containing cylinder 21; the second elastic member is connected to the storage cylinder 21.

The grasping mechanism comprises a cross rod 11 and a handle 12, the cross rod 11 is positioned in a second gravity center traction guide area and is horizontally and fixedly connected with the upper ends of two adjusting rods 4 in the area, and the handle 12 is sleeved on the cross rod 11 in a horizontally sliding manner; the advantage of adding the handle 12 is that during the sliding process, the user can return to the original position quickly by means of the balance of the two handles 12 according to the reciprocating sliding of the two slopes, so as to adapt to the landslide scene of the snowboard quickly.

The second elastic component comprises two return force belts 18, the two return force belts 18 are respectively fixedly wound on the two storage barrels 21, and the other ends of the two return force belts 18 are intersected and fixedly connected with the outer parts of the positioning belts 14; the exterior of the support tube 5 is provided with a third thread 35, and the sleeve disc 19 is connected with the exterior of the support tube 5 through the third thread 35.

The lower end of the traction column 3 is suspended right below the support tube 5; a guide column 6 is fixedly arranged outside the lower end of the traction column 3, the guide column 6 is vertical, a plurality of rollers 7 which can be in rolling fit with the top surface of the sliding plate body 0 are arranged at the bottom end of the guide column, and all the rollers 7 are arranged along a straight line; two ends of the teaching aid board 1 are respectively provided with a guide arm 23, the guide arms 23 are of a telescopic structure, one end of each guide arm 23 is hinged to the teaching aid board 1, the other end of each guide arm 23 is a free end, the free end of each guide arm 23 is in shaft joint fit with the corresponding guide column 6, a sliding groove 24 is formed in the outer side of each guide arm 23, a positioning block 25 capable of freely sliding along the extension direction of each guide arm 23 is further arranged in each sliding groove 24, a backer block 26 is arranged on each positioning block 25, one end of each backer block 26 is in shaft joint fit with the corresponding positioning block 25, the other end of each backer block 26 is a free end, the free end can be overturned and abutted to the outer surface of each traction column 3, and each backer block 26 is detachably connected with each traction column 3 through bolts; when the guide post 6 moves horizontally, the free end of the guide arm 23 can be forced to rotate indirectly along with the horizontal movement of the guide post 6, and the maximum angle of the rotation range is 15 degrees; the guide arm 23 is additionally arranged, so that when the guide column 6 moves horizontally, the free end of the guide arm 23 can be forced to indirectly rotate along with the horizontal movement of the guide column 6, the maximum angle of the rotation range is 15 degrees, namely, the limitation of the horizontal movement stroke of the guide column 6 is indirectly expressed, and in addition, the arrangement range can ensure that the guide arm 23 cannot topple in the direction far away from the teaching aid board 1;

meanwhile, the arrangement of the mountain block 26 can ensure that the guide arm 23 cannot topple in the direction of the teaching aid board 1 in the process of matching and sliding with the guide column 6

The boosting mechanism comprises a boosting plate 27, a booster and a bearing plate 28, the boosting plate 27 is of a U-shaped structure, two ends of an opening 17 of the boosting plate 27 can be detachably connected with two sides of the teaching aid plate 1 through bolt sets 29, the bearing plate 28 is arranged at the closed end of the boosting plate 27, and the closed end of the boosting plate 27 is in shaft joint fit with the bearing plate 28 through a bearing; the sliding plate body 0 is symmetrically provided with two fixedly connected connecting blocks 31, and the two connecting blocks 31 are respectively positioned at two ends of the sliding plate body 0; two ends of the teaching aid board 1 are respectively in threaded connection with a connecting block 31 through a group of connecting arms 30;

the center area of the top of the skateboard body 0 is provided with a plurality of convex strips 32, all the convex strips 32 are arranged at intervals along the width direction of the skateboard body 0, and the bottom of the teaching aid board 1 is provided with a plurality of clamping grooves which are in one-to-one insertion fit with all the convex strips 32; the front end of the booster is connected with a bearing plate 28.

A teaching method of snowboarding movement comprises the following steps:

step S1: the teaching aid board 1 is arranged on the skateboard body 0, and then two adjusting rods 4 at one end of the teaching aid board 1 are synchronously shifted to rotate according to different body lengths of users so as to adjust the height of the grasping mechanism; in addition, the height of the return belt 18 is adjusted by the sleeve disc 19;

step S2: according to the leg thickness of different users, the storage barrel 21 is rotated, the return belt 18 is unreeled, namely the length adjustment of the return belt 18 is realized, so that when the positioning belt 14 fully covers the legs of the users, the return belt 18 is in a tightening state in a certain range and cannot be too loose or too tight, and the storage barrel 21 is rotationally locked through the pressing barrel 22 after the adjustment is finished;

when the stabilizing teaching aid is used in a practice court on a horizontal plane, the two positioning belts 14 are respectively tightened on the two knees of a user; the user holds the grips 12 of the two gripping mechanisms with both hands to keep the body balance; under the action of the boosting mechanism, a user stands on the skateboard body 0 to do translational sliding exercise along the exercise field on the horizontal plane; in the translation process, the user can control the small-amplitude steering of the skateboard body 0 by using two feet.

When the stable teaching aid is used in an exercise field with slope structures at two ends, the two positioning belts 14 are integrated into a waistband for tightening the waist of a user, and the user holds the handles 12 of the two holding mechanisms with both hands to keep the body balance; the method comprises the following steps of removing a boosting mechanism in advance without adopting the boosting mechanism, selecting one leg of a user to contact the ground as a driving source, driving the whole body to slide, wherein the direction is towards an exercise field with slope structures at two ends, the exercise field enters from one end of the exercise field and slides to the other slope along the slope of the exercise field, and the exercise field reciprocates to simulate a landslide scene of a snowboard;

during the sliding process, the user can quickly return to the original position by means of the balance brought by the two handles 12 according to the reciprocating sliding of the two slope surfaces, so that the user can quickly adapt to the landslide scene of the snowboard.

The working principle of the invention is as follows: the teaching aid board 1 is arranged on the skateboard body 0, then two adjusting rods 4 at one end of the teaching aid board 1 are synchronously shifted to rotate according to different body lengths of users, the adjusting rods 4 axially move in the traction column 3 by means of first threads, namely, the part of the adjusting rods 4 in the traction column 3 slowly rises to achieve the effect of adjusting the height of the grasping mechanism;

a fork-shaped arm 33 can be adopted between the upper end of the adjusting rod 4 and the lower end of the traction column 3 as a guiding force for rotating the adjusting rod 4 to lift, so that two adjusting rods 4 can be simultaneously controlled by both hands by a person to lift synchronously;

the first thread is a trapezoidal thread and has self-locking force;

when the grasping mechanism ascends and descends along with the adjusting rod 4, the positioning belt 14 ascends and descends along with the adjusting rod, and after the positioning belt 14 ascends along with the grasping mechanism, the positioning belt can further rotate through the rotating sleeve disc 19, so that the sleeve disc 19 drives the containing barrel 21 to ascend, namely the return belt 18;

the rising function of the return belt 18 can be suitable for positioning and wrapping the knees of people with different body lengths, and can also be used as positioning and wrapping for girdling;

after the operation is finished, a person wears the skateboard boot, then according to the leg thicknesses of different users, the storage barrel 21 is rotated firstly, the storage barrel 21 is forced to rotate, the return belt 18 is unreeled, the length of the return belt 18 is adjusted through the forward and reverse rotation of the storage barrel 21, so that when the positioning belt 14 fully covers the legs of the user, the return belt 18 is in a tightening state in a certain range and cannot be too loose or too tight, after the adjustment is finished, the pressing barrel 22 is manually stirred to rotate, the pressing barrel 22 descends, and when the positioning belt descends, the lower end face of the pressing barrel 22 can be tightly contacted with the upper end face of the storage barrel 21, so that the locking effect on the storage barrel 21 is achieved;

the user faces to one side of the skateboard body 0, and the positioning belt 14 is covered on the knee area through the bonding end 15 and the length adjusting end 16 of the positioning belt 14 and is tightened;

the user holds the grips 12 of the two gripping mechanisms with both hands to keep balance;

firstly, a user adopts the teaching aid to train the snowfield on a horizontal plane, specifically, under the driving action of the booster, the booster pushes the skateboard body 0 to slide on the snowfield on the horizontal plane through the supporting plate 28, the boosting plate 27 and the teaching aid plate 1 in sequence, at the moment, due to the initial training, the body balance feeling and the adaptability between the booster and the skateboard are poor, because the trainer can generate reciprocating inclination relative to the front of the trainer, the inclination mainly comes from the area below the knees and the waist, but because the positioning belt 14 tightens the knees of the trainer and simultaneously holds the grip 12 with two hands, the inclination can be buffered, specifically, when the trainer tilts forwards and backwards, under the action of the return belt 18 under the tightening state in a certain range, the trainer can lean back in the direction relative to the inclination by virtue of the elastic action of the grip 12 and the return belt 18, the grip 12 slides freely on the cross bar 11 along the axis of the cross bar 11, which can be used as a guide for the trainer in the direction;

in addition, according to social investigation reports, some trainees are not suitable for standing on the skateboard due to the fact that the skateboard is fast in sliding and poor in body balance feeling during training and face visual impact brought by the moving skateboard, the upper half of the trainees can involuntarily lean backward due to fear, and the center of gravity of the skateboard deviates during backward tilting, so that the trainees can be easily planted;

however, as the teaching aid is used, a user holds the handle 12 with both hands, even if the above situation occurs, the arms of the user can be transferred to the cross rod 11, the cross rod 11 drives the traction column 3 and the guide column 6 to translate in a small amplitude, the guide column 6 pulls the corresponding traction rope 8 in the translation process, the corresponding traction rope 8 is led out under the action of each traction wheel 9 in the guide group, and the return wheel 10 at the end part of the traction rope 8 is forced to rotate to lead out the traction rope 8, so that the traction column 3 and the guide column 6 corresponding to the traction rope 8 generate a reactive pulling force under the action of the traction torsion spring 34 in the translation process, and the body is ensured to be instantly depended and maintained when the body tilts and shakes (leftwards and rightwards) due to poor balance feeling, and the gravity center of the sliding plate is ensured not to deviate;

in the process of horizontal movement of the guide post 6, the guide arm 23 is used as a guide for horizontal movement to prevent the guide arm from departing from the preset sliding direction;

in addition, when the guide arm 23 of the invention clearly limits the horizontal movement of the guide post 6, the free end of the guide arm 23 can be forced to indirectly rotate along with the horizontal movement of the guide post 6, and the maximum angle of the rotating range is 15 degrees, namely, the limitation of the horizontal moving stroke of the guide post 6 is indirectly expressed, and in addition, the setting range can ensure that the guide arm 23 cannot incline in the direction away from the teaching aid board 1;

meanwhile, the arrangement of the mountain block 26 can ensure that the guide arm 23 cannot topple towards the direction of the teaching aid board 1 in the process of matching and sliding with the guide column 6;

when the invention is used, because the guide arm 23 is limited by the rotation range of the guide arm and the backer block 26, a person can dynamically select to release the grip 12 according to the actual situation of the person, namely the person does not depend on the grip 12, the cross bar 11 and the traction mechanism to keep the balance of the person; if the user tries to release the handle 12, when the user cannot ensure the self balance, the user can quickly continue to hold the handle 12 to keep the balance, and meanwhile, the acting force of the traction mechanism can enable the handle 12 to be always within the range which can be controlled by the user and not to automatically slide and separate from the area which cannot be controlled by the user;

the used propeller can be of a crawler type or a conventional pulley type, which is the prior art and is not described herein again;

the teaching aid board 1 is connected with the boosting board 27, the supporting board 28 is hinged with the boosting board 27, and when the boosting board 27 is driven by the propeller to move, a user can control the steering of the skateboard body 0 by foot power without conflict with the work of the propeller;

in addition, the invention avoids the problem that a driving element is additionally arranged at the bottom of the sliding plate in the traditional technical scheme, can effectively avoid the assembly difficulty, reduces the coupling degree of the sliding plate and the driving element, and ensures that the design of the sliding plate is not in conflict with the design of the driving element, namely the design, the production and the assembly are facilitated;

in addition, when a driving element is abandoned at the bottom of the sliding plate and automatic movement can be realized, the bottom of the sliding plate can be actually contacted with the ground, and the real environment is matched with a trainer during training, so that the use scene and feeling of the trainer are basically consistent when the trainer uses a normal sliding plate after training is finished, and the situation of inadaptation cannot occur;

furthermore, the booster can be directly abandoned, the bonding ends 15 of the two positioning belts 14 are butted with the length adjusting end 16 to form the positioning belt 14 for tightening the waist of a trainer, and the knees are not tightened at the moment, so that the other leg of the user can contact the ground to achieve the driving function;

therefore, as a training mode, the training field with slope structures at two ends is selected, and the manpower enters from the slope surface at one end of the field and reaches the slope surface at the other end through the steps, so that the cycle is repeated for many times, the real scene of the snowboard is simulated, and a series of problems of beginners are overcome by matching with components such as a traction mechanism and the like.

The connecting blocks 31 at the two ends of the skateboard body 0 are only integrally formed and provided with the thread grooves for connecting the teaching aid board 1, so that the skateboard body 0 does not need other additional matching type processing in the following process, the structural design of the skateboard body 0 is not affected, namely the skateboard can be disassembled and assembled after being used by beginners to become a normal snowboard;

in the traction mechanism, the traction column 3, the adjusting rod 4, the supporting tube 5 and the guide column 6 can be folded and turned to the upper part of the teaching aid board 1 to be stacked up and down after the connection between the backrest block 26 and the positioning block 25 is released, so that the storage is favorable for carrying and storage;

the adhesive end 15 and the length adjustment end 16 of the positioning strap 14 may be selected from a snap fit connection or a hook and loop connection.

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

1. The gravity center assisting and stabilizing teaching aid for the snowboarding movement comprises a sliding plate body (0), wherein two sliding plate boots are symmetrically arranged on the sliding plate body (0), and is characterized in that the top of the sliding plate body (0) is detachably provided with a teaching aid board (1), the teaching aid board (1) is provided with a avoiding groove (2) for avoiding the sliding plate boots, two traction mechanisms are respectively arranged outside two ends of the teaching aid board (1) and are respectively and elastically connected with the teaching aid board (1) through a first elastic part and can move in opposite directions or in opposite directions, the upper area of each traction mechanism is provided with a holding mechanism capable of being vertically and movably adjusted, the tail part of the sliding plate body (0) is provided with a detachable boosting mechanism, and each traction mechanism comprises two traction columns (3) respectively, all the traction columns (3) are arranged in a rectangular shape; a first gravity center traction guide area is formed between the two traction columns (3) positioned at one end of the teaching aid board (1); the two first elastic components are symmetrically arranged on the teaching aid board (1) and respectively correspond to a first gravity center traction guide area, each first elastic component is connected with two traction columns (3) in the corresponding first gravity center traction guide area, each first elastic component comprises two traction ropes (8) and a plurality of traction wheels (9) which are arranged on the teaching aid board (1) at intervals along the long side direction of the skateboard body (0), all the traction wheels (9) in each first elastic component form a guide group, the traction wheel (9) in the middle point position in the guide group is a return wheel (10), each traction wheel (9) can rotate around the axis of the traction wheel (9), one end of each traction rope (8) is fixedly connected with one traction column (3), and the other ends of the two traction ropes (8) are respectively close to the return wheel (10) in opposite directions from the two ends of the traction wheel group, each traction wheel (9) is sequentially wound in the approaching process, and finally the traction ropes are wound on the return wheel (10) in the clockwise direction and the anticlockwise direction respectively, and the traction ropes (8) are always in a tight state; and a traction torsion spring (34) is arranged at the rotating part of the return wheel (10).

2. The gravity center assisting and stabilizing teaching aid for snowboarding according to claim 1, wherein each traction column (3) is of a hollow structure, the top end of each traction column (3) is open, the inner surface of each traction column (3) is provided with a first thread extending along the axial direction of the traction column, the inner surface of the traction column (3) is provided with an adjusting rod (4) which is in threaded fit with the traction column, the top end of the adjusting rod (4) extends to the upper part of the traction column (3), a supporting tube (5) is arranged outside the traction column (3), the supporting tube (5) and the traction column (3) are coaxial, and the inner surface of the supporting tube (5) is in sliding fit with the outer surface of the traction column (3), the top of traction column (3) is connected with supporting tube (5) by shaft and is cooperated, the grasping mechanism is arranged between two adjusting rods (4) at one end of teaching aid board (1).

3. The gravity center assisting and stabilizing teaching aid for snowboarding according to claim 2, characterized in that a second gravity center traction guide area is formed between two adjusting rods (4) at one end of the teaching aid board (1); each second gravity center traction guide area position is respectively provided with a positioning belt (14) used for covering the knee area of an athlete on the skateboard body (0), and the positioning belt (14) is elastically connected with the supporting pipe (5) at the position through a second elastic component; a waistband for binding the waist of the athlete can be formed between the two positioning belts (14).

4. A gravity center assisting and stabilizing teaching aid for snowboarding according to claim 3, characterized in that a sleeve disc (19) is sleeved outside each supporting tube (5), a receiving cylinder (21) is arranged below the sleeve disc (19), a distance is reserved between the inner surface of the receiving cylinder (21) and the outer surface of the supporting pipe (5), the upper end of the containing cylinder (21) is rotationally connected with the lower end of the sleeve disc (19), and the containing cylinder (21) can independently rotate around the axis of the containing cylinder, the outer diameter of the upper end of the containing cylinder (21) is larger than that of the lower end of the sleeve disc (19), a pressing cylinder (22) is arranged outside the sleeve disc (19), a second thread is arranged on the outer surface of the sleeve disc (19), the pressing cylinder (22) is in threaded connection with the sleeve disc (19) through the second threads, the lower end face of the pressing cylinder (22) can be in tight contact with the upper end face of the containing cylinder (21); the second elastic member is connected to the storage cylinder (21).

5. The gravity center assisting and stabilizing teaching aid for snowboarding according to claim 4, wherein the second elastic part comprises two return force belts (18), the two return force belts (18) are respectively fixedly wound on two storage barrels (21), and the other ends of the two return force belts (18) are intersected and fixedly connected with the outer part of the positioning belt (14); the outer part of the supporting tube (5) is provided with a third thread (35), and the sleeve disc (19) is in threaded connection with the outer part of the supporting tube (5) through the third thread (35).

6. A teaching method of snowboarding comprising the stabilizing teaching aid of claim 5, characterized in that: and comprises the following steps:

step S1: the teaching aid board (1) is arranged on the skateboard body (0), and then two adjusting rods (4) at one end of the teaching aid board (1) are synchronously shifted to rotate according to different body lengths of users so as to adjust the height of the grasping mechanism; in addition, the height of the return belt (18) is adjusted by a sleeve disc (19);

step S2: according to the leg thickness of different users, the storage barrel (21) is rotated, the return belt (18) is unreeled, and the length adjustment of the return belt (18) is realized, so that when the positioning belt (14) fully coats the legs of the users, the return belt (18) is in a tightening state in a certain range and cannot be too loose or too tight, and the storage barrel (21) is rotationally locked through the pressing barrel (22) after the adjustment is finished.

7. The teaching method of snowboarding according to claim 6, wherein: when the stabilizing teaching aid is used in a practice court on a horizontal plane, the two positioning belts (14) are respectively tightened on the two knees of a user; under the action of the boosting mechanism, a user stands on the skateboard body (0) to do translational sliding exercise along an exercise field on the horizontal plane; in the translation process, a user can control the small-amplitude steering of the skateboard body (0) by using two feet.

8. The teaching method of snowboarding according to claim 6, wherein: when the stable teaching aid is used in an exercise field with slope structures at two ends, two positioning belts (14) are integrated into a waistband for tightening the waist of a user, a boosting mechanism is dismounted in advance, the boosting mechanism is not adopted, one leg of the user is selected to contact the ground as a driving source, the whole sliding is driven, the direction is towards the exercise field with the slope structures at two ends, the exercise field enters from one end of the exercise field and slides along the slope to the other slope, and the reciprocating is carried out to simulate the landslide scene of the snowboard.