Backward turning trainer

Abstract

The utility model provides a backward turning training device which comprises a first base, a waist support and a rotating disc, a group of springboard is arranged on the top of the first base, a plurality of groups of springs are arranged on the lower portion in the first base, and a group of second bases are arranged on the left side and the right side of the first base respectively. Compared with the prior art, the device has the advantages that the fixed disc, the rotary disc, the first universal ball and the second universal ball are arranged, the first universal ball can roll between the first ball groove and the second ball groove when the two elastic ropes are wound, the second universal ball can roll between the third ball groove and the fourth ball groove, and therefore the rotary disc rotates in the fixed disc, and the two elastic ropes are wound. The two elastic cords are prevented from being wound together after the child turns backwards, potential safety hazards caused by unbalance of the body of the child due to winding of the elastic cords are avoided, the backward turning training effect is not affected, the waist support can be conveniently maintained by arranging a threaded connecting rod and a mounting groove, and extra elastic assistance can be provided for the child by arranging a first base and a springboard; and the backward turning training effect is prevented from being influenced by insufficient leg strength of children.

Description

Technical Field

[0001] The utility model belongs to the technical field of educational equipment, and particularly relates to a back flip training device. Background Art

[0002] A backflip training device for children's education is an auxiliary tool used to help children practice backflip skills. Usually, this type of training device uses an elastic cord as a device to support and stabilize the child's body. During the exercise, the child's backflip causes the elastic cord to rotate, causing the two elastic cords to entangle with the rotation. The entangled elastic cords affect the child's posture and ability to maintain balance. This may cause the child to be unable to perform the backflip movement correctly during training, limiting their ability to develop motor skills and coordination.

[0003] Secondly, the entangled elastic cord will restrict children's free movement and hinder them from performing various actions on the trainer. This may reduce the training effect and hinder their progress in learning and mastering the skills of turning over. At the same time, the entangled elastic cord causes children to lose balance, which can easily cause hidden dangers. In order to avoid the above problems, it is very important to set up a mechanism to prevent the elastic cord from spirally winding. This can be achieved through reasonable design and manufacturing to ensure the safety and reliability of the trainer. Therefore, it is hoped to develop a back flip trainer to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a back flip training device.

[0005] The utility model is realized by the following technical scheme: a back flip training device, comprising: a base one, a waist protector and a turntable, a group of springboards are arranged on the top of the base one, a plurality of groups of springs are arranged at the bottom of the base one, and a group of base two is arranged on the left and right sides of the base one;

[0006] A set of support plates are fixed on the top of each set of bases by bolts, and a number of hooks are fixed on the inner side of each set of support plates from top to bottom. A set of waist protectors are arranged between the two sets of support plates, and a set of tightening belts are respectively arranged at the upper and lower positions of the front of the waist protectors, and a set of fixing plates are respectively arranged on the left and right sides of the waist protectors;

[0007] A set of rotating disks are installed inside each set of fixed disks, a set of hooks 2 are provided at the upper and lower positions on the outside of each set of rotating disks, a set of elastic ropes are provided between each set of hooks 1 and 2, a set of threaded connecting rods are provided on the inside of each set of fixed disks, and the left and right sides of the waist guard are recessed inward to form a set of installation grooves.

[0008] As a preferred embodiment, a group of slide grooves are provided at the front and rear positions on the left and right sides of the base, and a group of slide bars are provided at the front and rear positions on the left and right sides of the springboard, and the length, width and height of the slide bars are all smaller than the length, width and height of the slide grooves.

[0009] As a preferred embodiment, the base one is made of stainless steel, a rubber layer is glued to the bottom of the base one, the rubber layer is made of natural rubber, and the length of the slide groove is less than the height inside the base one.

[0010] As a preferred embodiment, both groups of support plates are made of stainless steel, and the two groups of support plates are arranged in mirror symmetry. The positions of hooks 1 on the left and right sides are opposite to each other, and the left and right sides of the elastic rope are respectively connected to hook 1 and hook 2 through buckle 1.

[0011] As a preferred embodiment, the waist protector surface material is nylon, the waist protector is composed of an outer layer, a middle layer and an inner layer, the middle layer material is natural rubber, the outer layer material is polyethylene, and the inner layer material is sponge;

[0012] The mounting groove is made of stainless steel, the inner side of the mounting groove penetrates the outer layer and is glued to the inside of the middle layer, an inner screw groove is opened inside the mounting groove, and the two ends of the tightening belt are connected and fixed by buckle 2.

[0013] As a preferred embodiment, threads are provided on the outer side of the threaded connecting rod, the radius of the threaded connecting rod is smaller than the radius of the mounting groove, and the length of the threaded connecting rod is equal to the depth of the mounting groove. After the training, the coach can remove the four elastic ropes on the left and right sides according to the steps, and then take off the waist protector from the child's waist, and rotate the left and right two sets of fixed disks respectively to make the two sets of threaded connecting rods rotate out of the two sets of mounting grooves, and then remove the two sets of fixed disks and the two sets of rotating disks, and then the waist protector can be maintained and cleaned.

[0014] As a preferred embodiment, the fixed disk and the rotating disk on the left and right sides of the waist guard have the same size and structure and are arranged in a mirror-symmetrical manner. The rotating disk is embedded in the fixed disk, and a group of rotating grooves are opened inside the fixed disk. The outer side of the rotating groove is connected with the outer side of the fixed disk.

[0015] As a preferred embodiment, a group of ball grooves 1 are opened on the outside of the rotating groove, and several groups of universal balls 1 are installed inside the ball grooves 1; a group of ball grooves 3 are opened on the inside of the rotating groove, and several groups of universal balls 2 are installed inside the ball grooves 3;

[0016] A set of ball grooves 2 is opened on the outer side of the turntable, and a set of ball grooves 4 is opened on the inner side of the turntable. The ball grooves 1 and 2 are opposite to each other and have the same radius length. The ball grooves 3 and 4 are opposite to each other and have the same radius length.

[0017] After the child flips backwards and falls to the ground, the elastic ropes become entangled due to the child's backward rotation. When the elastic ropes are entangled, the two elastic ropes on the left side apply a rotational torque to the two groups of hooks 2 on the left side, thereby forcing the left turntable to rotate. When the left turntable rotates, several groups of universal balls 1 roll between ball slots 1 and 2, and several groups of universal balls 2 roll between ball slots 3 and 4, thereby reducing the friction resistance between the left turntable and the fixed plate, making the turntable rotate more sensitive and smooth, and preventing the left turntable from failing to rotate due to excessive friction resistance, thereby causing the two elastic ropes on the left side to fail to untangle. Similarly, the movement mode of the two groups of turntables on the right side is consistent with the movement mode of the two groups of turntables on the left side, thereby preventing the four elastic ropes on the left and right from getting entangled, causing the child's body to be unbalanced and affecting the training effect.

[0018] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by setting a fixed plate, a rotating plate, a universal ball one and a universal ball two, when the two elastic ropes are entangled, the universal ball one can roll between the ball groove one and the ball groove two, and the universal ball two can roll between the ball groove three and the ball groove four, so that the rotating plate can rotate inside the fixed plate, and then the two elastic ropes can be prevented from being entangled together after the child does a back flip, thereby avoiding safety hazards caused by the entanglement of the elastic ropes and the imbalance of the child's body. At the same time, it can avoid the restriction of the child's back flip posture due to the entanglement of the elastic ropes, thereby affecting the back flip training effect. By setting a threaded connecting rod and an installation groove, the two sets of fixed plates can be disassembled to maintain and clean the waist protector. By setting a base one and a springboard, additional elastic assistance can be provided to the child, thereby avoiding the back flip training effect affected by insufficient leg strength of the child. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 The utility model is a schematic diagram of a back flip training device.

[0021] Figure 2 The utility model is a schematic diagram of the structure of a waist protector in a back flip training device.

[0022] Figure 3 The utility model is a schematic diagram of the structure of a fixed plate and a rotating plate in a back flip training device.

[0023] Figure 4 The utility model is a schematic structural diagram of a base and a springboard in a back flip training device.

[0024] In the figure, 100-base one, 110-base two, 120-support plate, 130-waist protector, 140-elastic rope, 150-hook one, 160-fixed plate, 170-turntable, 180-hook two, 190-threaded connecting rod, 200-installation groove, 210-tightening belt, 220-ball groove one, 230-ball groove two, 240-universal ball one, 250-ball groove three, 260-ball groove four, 270-universal ball two, 280-springboard, 290-slide bar, 300-slide groove, 310-spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only one end of the utility model, not the whole end. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 4 A back flip training device, comprising: a base 100, a waist protector 130 and a turntable 170, a group of springboards 280 are arranged on the top of the base 100, a plurality of groups of springs 310 are arranged at the bottom of the base 100, and a group of base 2 110 is arranged on the left and right sides of the base 100;

[0027] A set of support plates 120 are fixed on the top of each set of bases 110 by bolts, and a plurality of sets of hooks 150 are fixed on the inner side of each set of support plates 120 from top to bottom. A set of waist protectors 130 is arranged between the two sets of support plates 120, and a set of tightening belts 210 are respectively arranged at the upper and lower positions of the front of the waist protectors 130, and a set of fixing plates 160 are respectively arranged on the left and right sides of the waist protectors 130;

[0028] A set of rotating disks 170 is installed inside each set of fixed disks 160, a set of hooks 180 are provided at the upper and lower positions on the outer sides of each set of rotating disks 170, a set of elastic ropes 140 are provided between each set of hooks 150 and hooks 2 180, a set of threaded connecting rods 190 are provided on the inner side of each set of fixed disks 160, and the left and right sides of the waist protector 130 are recessed inward to form a set of installation grooves 200.

[0029] A set of slide grooves 300 are provided at the front and rear positions of the left and right sides of the base 100, and a set of slide bars 290 are provided at the front and rear positions of the left and right sides of the springboard 280. The length, width and height of the slide bars 290 are all smaller than the length, width and height of the slide grooves 300.

[0030] The base 100 is made of stainless steel, and a rubber layer is glued to the bottom of the base 100. The rubber layer is made of natural rubber. The length of the slide groove 300 is less than the height inside the base 100.

[0031] The two groups of support plates 120 are both made of stainless steel. The two groups of support plates 120 are arranged in mirror symmetry. The positions of the hooks 150 on the left and right sides are opposite to each other. The elastic rope 140 is connected to the hook 1 150 and the hook 2 180 on the left and right sides respectively through the buckle 1.

[0032] The surface material of the waist protector 130 is nylon. The waist protector 130 is composed of an outer layer, a middle layer and an inner layer. The middle layer is made of natural rubber, the outer layer is made of polyethylene, and the inner layer is made of sponge.

[0033] The mounting groove 200 is made of stainless steel, the inner side of the mounting groove 200 penetrates the outer layer and is glued to the inner part of the middle layer, an inner screw groove is provided inside the mounting groove 200, and both ends of the tightening belt 210 are connected and fixed by buckle 2.

[0034] A thread is provided on the outside of the threaded connecting rod 190, and the radius length of the threaded connecting rod 190 is smaller than the radius length of the mounting groove 200, and the length of the threaded connecting rod 190 is equal to the depth of the mounting groove 200. After the training, the coach can remove the four elastic ropes 140 on the left and right sides in steps, and then take off the waist protector 130 from the child's waist, and rotate the two sets of fixed disks 160 on the left and right sides respectively to make the two sets of threaded connecting rods 190 rotate out of the two sets of mounting grooves 200, and then remove the two sets of fixed disks 160 and the two sets of rotating disks 170, and then the waist protector 130 can be maintained and cleaned.

[0035] The fixed disk 160 and the rotating disk 170 on the left and right sides of the waist protector 130 have the same size and structure and are arranged in mirror symmetry. The rotating disk 170 is embedded in the fixed disk 160. A group of rotating grooves are opened inside the fixed disk 160, and the outer side of the rotating groove is connected to the outer side of the fixed disk 160.

[0036] A set of ball grooves 1 220 is opened on the outside of the rotating groove, and a plurality of sets of universal balls 1 240 are installed inside the ball grooves 1 220; a set of ball grooves 3 250 is opened on the inside of the rotating groove, and a plurality of sets of universal balls 2 270 are installed inside the ball grooves 3 250;

[0037] A set of ball grooves 230 is formed on the outer side of the turntable 170, and a set of ball grooves 4 260 is formed on the inner side of the turntable 170. The ball grooves 1 220 and 230 are opposite to each other and have the same radius length. The ball grooves 3 250 and 4 260 are opposite to each other and have the same radius length.

[0038] After the child flips backwards and falls to the ground, the elastic rope 140 becomes entangled due to the child's backward rotation. When the elastic rope 140 is entangled, the two elastic ropes 140 on the left side apply a rotational torque to the two groups of hooks 2 180 on the left side, thereby forcing the left turntable 170 to rotate. When the left turntable 170 rotates, several groups of universal balls 1 240 roll between the ball groove 1 220 and the ball groove 2 230, and several groups of universal balls 2 270 roll between the ball groove 3 250 and the ball groove 4 260, thereby reducing the friction resistance between the left turntable 170 and the fixed plate 160, making the turntable 170 rotate more sensitive and smooth, preventing the left turntable 170 from failing to rotate due to excessive friction resistance, thereby causing the two elastic ropes 140 on the left side to fail to untangle. Similarly, the movement mode of the two groups of turntables 170 on the right side is consistent with the movement mode of the two groups of turntables 170 on the left side, thereby preventing the four elastic ropes 140 on the left and right from getting entangled, causing the child's body to be unbalanced and affecting the training effect.

[0039] Example 1: Please refer to Figure 1 , Figure 2 and Figure 4 In actual use, first, the child stands on the springboard 280 under the guidance of the coach, wears the waist protector 130 on the child's waist, and tightens the two sets of tightening belts 210 respectively to complete the wearing of the waist protector 130. Then the coach picks up one elastic rope 140, connects the left side of the elastic rope 140 with the left hook 150, connects the right side of the elastic rope 140 with the hook 2 180 above the left turntable 170, and then picks up another elastic rope 140, connects the left side of the elastic rope 140 with the hook 1 150 below the left side, and connects the right side of the elastic rope 140 with the hook 2 180 below the left turntable 170, thereby completing the installation of the two elastic ropes 140 on the left side. Similarly, the two elastic ropes 140 on the right side are installed according to the above steps, and ensure that the hooks 150 connected to the left and right elastic ropes 140 are in the same plane. At the same time, the coach can adjust the connection position of the elastic rope 140 and the hook 1 150 according to the different heights of the children, which is convenient for flexible adjustment.

[0040] When the child is doing back flip training, the child pushes the springboard 280 downward with both legs. At this time, the springboard 280 moves downward inside the base 100, and the four groups of slide bars 290 slide downward inside the four groups of slide grooves 300, thereby ensuring the stability of the springboard 280 and preventing the springboard 280 from tilting and causing the child to lose balance and cause injury. The springboard 280 moves downward to squeeze the plurality of groups of springs 310 to shrink the springs 310, and then the springs 310 rebound to exert an upward elastic force on the springboard 280 to push the springboard 280 upward, thereby exerting a jumping assist on the child through the springboard 280, helping the child to reach the take-off height when doing back flip, and preventing the child from failing to do back flip due to insufficient leg strength when learning back flip for the first time, which affects the back flip effect.

[0041] Example 2: Please refer to Figures 1 to 3 After the child flips backwards and falls to the ground, the elastic rope 140 becomes entangled due to the rotation of the child flipping backwards. When the elastic rope 140 is entangled, the two elastic ropes 140 on the left side apply a rotational torque to the two groups of hooks 180 on the left side, thereby forcing the left turntable 170 to rotate. When the left turntable 170 rotates, several groups of universal balls 1 240 roll between the ball groove 1 220 and the ball groove 2 230, and several groups of universal balls 2 270 roll between the ball groove 3 250 and the ball groove 4 260, thereby reducing the friction resistance between the left turntable 170 and the fixed plate 160, making the turntable 170 rotate more sensitively and smoothly, preventing the left turntable 170 from failing to rotate due to excessive friction resistance, thereby causing the two elastic ropes 140 on the left side to fail to untangle. Similarly, the movement mode of the two groups of turntables 170 on the right side is consistent with the movement mode of the two groups of turntables 170 on the left side, thereby preventing the four elastic ropes 140 on the left and right from being entangled, causing the child's body to be unbalanced and affecting the training effect;

[0042] After the training, the coach can remove the four elastic ropes 140 on the left and right according to the steps, then take off the waist protector 130 from the child's waist, rotate the two sets of fixed plates 160 on the left and right respectively, so that the two sets of threaded connecting rods 190 can be rotated out of the two sets of installation grooves 200, and then the two sets of fixed plates 160 and the two sets of rotating plates 170 can be removed, and then the waist protector 130 can be maintained and cleaned.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A back flip training device, comprising: Base 1 (100), waist guard (130) and turntable (170), characterized in that: a group of springboards (280) are provided on the top of base 1 (100), a plurality of groups of springs (310) are provided at the bottom of base 1 (100), and a group of base 2 (110) is provided on the left and right sides of base 1 (100); A group of support plates (120) are fixed above each group of bases (110) by bolts, and a plurality of groups of hooks (150) are fixed on the inner side of each group of support plates (120) from top to bottom, and a group of waist protectors (130) are arranged between the two groups of support plates (120), and a group of tightening belts (210) are respectively arranged at the upper and lower positions of the front of the waist protectors (130), and a group of fixing plates (160) are respectively arranged on the left and right sides of the waist protectors (130); A set of rotating disks (170) is installed inside each set of the fixed disks (160); a set of hooks (180) are provided at upper and lower positions on the outer sides of each set of the rotating disks (170); a set of elastic ropes (140) are provided between each set of hooks (150) and hooks (180); a set of threaded connecting rods (190) are provided inside each set of the fixed disks (160); and the left and right sides of the waist protector (130) are both recessed inwards to form a set of mounting grooves (200).

2. A back flip training device as claimed in claim 1, characterized in that: A group of slide grooves (300) are provided at the front and rear positions of the left and right sides of the base (100), and a group of slide bars (290) are provided at the front and rear positions of the left and right sides of the springboard (280), and the length, width and height of the slide bars (290) are all smaller than the length, width and height of the slide grooves (300).

3. A back flip training device as claimed in claim 2, characterized in that: The base one (100) is made of stainless steel, a rubber layer is glued to the bottom of the base one (100), and the rubber layer is made of natural rubber. The length of the slide groove (300) is smaller than the height inside the base one (100).

4. A back flip training device as claimed in claim 1, characterized in that: The two groups of support plates (120) are both made of stainless steel. The two groups of support plates (120) are arranged in a mirror-symmetrical manner. The positions of the hooks (150) on the left and right sides are opposite to each other. The elastic rope (140) is connected to the hook (150) and the hook (180) on the left and right sides respectively through the buckle (1).

5. A back flip training device as claimed in claim 1, characterized in that: The surface material of the waist protector (130) is nylon. The waist protector (130) consists of an outer layer, a middle layer and an inner layer. The middle layer is made of natural rubber, the outer layer is made of polyethylene, and the inner layer is made of sponge. The mounting groove (200) is made of stainless steel, the inner side of the mounting groove (200) penetrates the outer layer and is glued to the inside of the middle layer, an inner screw groove is provided inside the mounting groove (200), and the two ends of the tightening belt (210) are connected and fixed by buckles.

6. A back flip training device as claimed in claim 5, characterized in that: The threaded connecting rod (190) is provided with threads on its outer side, the radius length of the threaded connecting rod (190) is smaller than the radius length of the mounting groove (200), and the length of the threaded connecting rod (190) is equal to the depth of the mounting groove (200).

7. A back flip training device as claimed in claim 1, characterized in that: The fixed disk (160) and the rotating disk (170) on the left and right sides of the waist protector (130) are of the same size and structure and are arranged in a mirror-symmetrical manner. The rotating disk (170) is engaged with the fixed disk (160). A group of rotating grooves are provided inside the fixed disk (160), and the outer side of the rotating groove is connected to the outer side of the fixed disk (160).

8. A back flip training device as claimed in claim 7, characterized in that: A group of ball grooves (220) is formed on the outer side of the rotating groove, and a plurality of groups of universal balls (240) are installed inside the ball grooves (220); a group of ball grooves (250) is formed on the inner side of the rotating groove, and a plurality of groups of universal balls (270) are installed inside the ball grooves (250); A group of ball grooves 2 (230) is opened on the outer side of the turntable (170), and a group of ball grooves 4 (260) is opened on the inner side of the turntable (170). The ball grooves 1 (220) and 2 (230) are positioned opposite to each other and have the same radius length, and the ball grooves 3 (250) and 4 (260) are positioned opposite to each other and have the same radius length.

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