Sit-up evaluation device for standardizing test actions

Abstract

The invention discloses a sit-up evaluation device for standardizing test actions, and relates to the technical field of action evaluation, the sit-up evaluation device comprises a flat plate, an evaluation device is fixedly connected to one side of the flat plate, a soft cushion is fixedly connected to the other side of the flat plate, and a low probe is detachably connected to one side, close to the soft cushion, of the edge of the flat plate; through the arrangement of the action positioning mechanism, when a testee sits up, under the action of the change of the gravity center of the body, the hip drives the seat cushion and the arc-shaped supporting plate to extrude forwards or backwards, so that the arc-shaped supporting plate slides on the top of the pulley, and then the testee can sit up. The pulley not only can reduce the frictional resistance of the arc-shaped supporting plate, but also is matched with the first sliding groove to limit and support the seat cushion, so that the hip position of the testee is kept within the fixed range of the first sliding groove, the body of the testee is prevented from deviating, the sit-ups made by the testee can be accurately counted, and the testing accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motion assessment, and specifically relates to a sit-up assessment device for standardizing test movements. Background Art

[0002] A sit-up assessment device is a device specifically used to test and evaluate an individual's ability to perform sit-ups. It combines advanced sensor technology, image processing technology, and algorithms, and can accurately capture and analyze the movements of sit-ups, providing a strong basis for the physical fitness assessment of students;

[0003] In the prior art, the action area of the device is usually designed as a flat soft pad to avoid injury to the tester and keep it clean. However, since sit-ups require repeated folding of the body by abdominal force, it is easy for the center of gravity of the buttocks to gradually shift forward or backward on the flat pad. And devices such as intelligent assessment counters are usually fixedly arranged, and the sensitivity to the shifted human body is insufficient, resulting in the device being unable to accurately measure the number of sit-ups;

[0004] In addition, the current foot presser is usually a horizontally arranged stick, and its outside is wrapped with sponge cushioning. However, in actual use, when most testers sit up during sit-ups, they will unconsciously lift their feet forcefully and abut against the foot presser. And the design of the stick makes the contact area with the instep smaller, which does not conform to the curve of the human foot, resulting in an increase in the force on the instep. After doing sit-ups multiple times, pain is likely to appear on the instep, thus distracting the tester's attention and making it difficult for them to standardize their movements and continue the test.

[0005] In view of this, the present invention proposes a sit-up assessment device for standardizing test movements to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0006] To solve the above technical problems, the present invention provides a sit-up assessment device for standardizing test movements that can increase the accuracy of the test; can concentrate the attention and standardize one's own movements; can reduce frictional losses and improve the service life of the device, so as to solve the corresponding technical problems raised in the above background art.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a sit-up assessment device for standardizing test movements, including a flat plate, one side of the flat plate is fixedly connected with an assessment device, the other side of the flat plate is fixedly connected with a soft pad, a low probe is detachably connected to one side of the edge of the flat plate close to the soft pad, a high probe is detachably connected to one side of the edge of the flat plate close to the assessment device, and further includes:

[0008] An action positioning mechanism for keeping the buttocks position of the tester within a fixed range to prevent deviation;

[0009] The covering foot pressing mechanism is used to moderately press the feet of different testers in a covering manner.

[0010] Preferably, the action positioning mechanism includes an arc-shaped support plate slidably connected to the inner wall of the soft pad. A pair of first chutes are provided at the bottom of the arc-shaped support plate. A pair of pulleys are rotatably connected to the inner wall of the middle part of the flat plate. The outer walls of the pulleys are slidably connected in the first chutes. A seat cushion is fixedly connected to the inner wall of the arc-shaped support plate. A pair of straps are fixedly connected to both sides of the top of the arc-shaped support plate. One side of the two straps away from the arc-shaped support plate is fixedly connected with a pair of magic tapes respectively. A pair of walking wheels are fixedly connected to the edge of the flat plate close to the evaluation device.

[0011] Preferably, the covering foot pressing mechanism includes an anti-slip pad fixedly connected to the side of the flat plate close to the evaluation device. A limiting shaft is rotatably connected to the inner wall of the flat plate. The top of the limiting shaft penetrates through the top of the flat plate and is fixedly connected with a threaded sleeve. A threaded column is threadedly connected to the inner wall of the threaded sleeve. The top of the threaded column is rotatably connected with a T-shaped plate. Arc-shaped plates are fixedly connected to both sides of the T-shaped plate. Elastic pads are fixedly connected to the bottoms of the two arc-shaped plates.

[0012] Preferably, the covering foot pressing mechanism further includes a chute box fixedly connected to the top of the flat plate. The chute box is located on one side of the middle of the anti-slip pad away from the threaded sleeve. A movable rod is slidably connected to the inner wall of the chute box. A second chute is provided at the bottom of the T-shaped plate. The top of the movable rod is movably connected in the second chute.

[0013] Preferably, the covering foot pressing mechanism further includes a fixed sleeve fixedly connected to the bottom of the movable rod. A second spring is fixedly connected to the inner wall of the fixed sleeve. One end of the second spring away from the fixed sleeve is fixedly connected with a telescopic column. The telescopic column slidably penetrates through the inner wall of the movable rod. A plurality of round holes are equidistantly provided on one side of the chute box away from the second spring. The outer wall of the telescopic column is slidably clamped in the round holes.

[0014] Preferably, the covering foot pressing mechanism further includes a push plate. The push plate is slidably connected to one side of the chute box close to the round holes. A first spring is fixedly connected to both the push plate and the bottom of the chute box. A plurality of convex blocks are fixedly connected to one side of the push plate close to the chute box at equal intervals.

[0015] Preferably, the outer diameter of the convex block matches the inner diameter of the round hole, and the distance between the convex block and the round hole is set to be the same.

[0016] Preferably, the threaded sleeve is located on the side of the flat plate close to the evaluation device.

[0017] Preferably, the height of the seat cushion is consistent with the height of the soft pad.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. Through the setting of the action positioning mechanism, when the tester does sit-ups, under the action of the change of the body center of gravity, the buttocks drive the seat cushion and the arc-shaped support plate to move forward or backward and squeeze, so that the arc-shaped support plate slides on the top of the pulley. The pulley can not only reduce the frictional resistance of the arc-shaped support plate, but also cooperate with the first chute to limit and support the seat cushion, ensuring that the buttocks position of the tester remains within the fixed range of the first chute, thereby preventing the body from shifting, enabling the sit-ups done by the tester to be accurately counted, and increasing the accuracy of the test;

[0020] 2. Through the setting of the covering type foot pressing mechanism, when doing sit-ups, it cooperates with the covering type arc panel and the elastic pad, which is more in line with the instep curve of the human body. At the same time, it is beneficial to disperse the extrusion force, avoid the situation that the tester's feet hurt after doing sit-ups repeatedly for many times, thus distracting their attention. The large instep coverage area can increase the comfort of the tester and help them concentrate on standardizing their movements;

[0021] 3. Through the setting of the push plate and the convex block, when it is necessary to release the lock between the telescopic column and the round hole, the tester directly presses the push plate, and the convex block is completely clamped into the round hole to fill it, so that the telescopic column can contract and be instantaneously pulled out of the inner wall of the chute box along with the movable rod. The cooperation and unlocking of the push plate and the convex block are more labor-saving and faster to operate compared with the traditional direct pulling unlocking method. It can also reduce the frictional loss between the telescopic column and the round hole, improve the service life of the device. In addition, the arc panel can adjust the pressing height respectively according to the thickness of the tester's toes and soles through the threaded sleeve and the equidistantly arranged round holes to adapt to testers of different ages, enhancing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of a preferred embodiment shown in the present invention;

[0023] Figure 2 is the side view three-dimensional structural schematic diagram shown in the present invention;

[0024] Figure 3 is the structural schematic diagram of the connection part of the arc-shaped support plate shown in the present invention;

[0025] Figure 4 is the structural schematic diagram of the connection part of the pulley shown in the present invention;

[0026] Figure 5 is the structural schematic diagram of the connection part of the chute box shown in the present invention;

[0027] Figure 6 is shown in the present invention Figure 5 The enlarged structural schematic diagram of part A;

[0028] Figure 7 As shown in the present invention Figure 5 The enlarged structural schematic diagram at position B in

[0029] Figure 8 The structural schematic diagram of the connection part of the telescopic column as shown in the present invention

[0030] Figure 9 The structural schematic diagram of the connection part of the bump as shown in the present invention

[0031] The reference numerals in the figure are as follows:

[0032] 1. Flat plate; 2. Low probe; 3. High probe; 4. Evaluator; 5. Soft pad;

[0033] 6. Action positioning mechanism; 61. Magic tape; 62. Belt; 63. Seat cushion; 64. Walking wheel; 65. Arc-shaped support plate; 66. First chute; 67. Pulley;

[0034] 7. Covering foot pressing mechanism; 71. Anti-slip pad; 72. Elastic pad; 73. Arc-shaped panel; 74. Threaded sleeve; 75. Limit shaft; 76. T-shaped plate; 77. Moving rod; 78. Chute box; 79. Push plate; 710. Threaded column; 711. Telescopic column; 712. Round hole; 713. Fixed sleeve; 714. First spring; 715. Bump; 716. Second spring; 717. Second chute. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiments of the present invention

[0037] Please refer to Figures 1 to 9 As shown, a sit-up evaluation device for standardizing test actions includes a flat plate 1. One side of the flat plate 1 is fixedly connected with an evaluator 4, and the other side of the flat plate 1 is fixedly connected with a soft pad 5. A low probe 2 is detachably connected to one side of the edge of the flat plate 1 close to the soft pad 5, and a high probe 3 is detachably connected to one side of the edge of the flat plate 1 close to the evaluator 4. It further includes:

[0038] An action positioning mechanism 6 for keeping the hip position of the testee within a fixed range to prevent deviation;

[0039] A covering foot pressing mechanism 7 for moderately covering and pressing the feet of different testees;

[0040] The action positioning mechanism 6 includes an arc-shaped support plate 65 slidably connected to the inner wall of the soft pad 5. A pair of first sliding grooves 66 are formed at the bottom of the arc-shaped support plate 65. A pair of pulleys 67 are rotatably connected to the inner wall of the middle part of the flat plate 1. The outer wall of the pulley 67 is slidably connected within the first sliding groove 66. A seat cushion 63 is fixedly connected to the inner wall of the arc-shaped support plate 65. A pair of straps 62 are fixedly connected to both sides of the top of the arc-shaped support plate 65. One side of the two straps 62 away from the arc-shaped support plate 65 is respectively fixedly connected with a pair of magic tapes 61. A pair of walking wheels 64 are fixedly connected to the edge of the flat plate 1 close to the evaluator 4;

[0041] The height of the seat cushion 63 is consistent with the height of the soft pad 5;

[0042] Among them: The seat cushion 63 being flush with the soft pad 5 can ensure that the tester lies flat horizontally.

[0043] The effects achieved by this embodiment are as follows: In the prior art, since sit-ups require the abdomen to exert force to repeatedly fold the body, it is easy for the center of gravity of the buttocks to gradually shift forward or backward on a flat pad. And devices such as the counter for intelligent evaluation are usually fixedly arranged, with insufficient sensitivity to the shifted human body, resulting in the device being unable to accurately measure the number of sit-ups. Compared with the prior art, through the implementation of this embodiment, by setting the action positioning mechanism 6, under the action of the change in the body's center of gravity, the buttocks drive the seat cushion 63 and the arc-shaped support plate 65 to be squeezed forward or backward, causing the arc-shaped support plate 65 to slide on the top of the pulley 67. The pulley 67 can not only reduce the frictional resistance of the arc-shaped support plate 65, but also cooperate with the first sliding groove 66 to limit and support the seat cushion 63, ensuring that the position of the tester's buttocks remains within the fixed range of the first sliding groove 66, thereby preventing the body from shifting.

[0044] Further embodiment:

[0045] Please refer to Figure 1 、 Figure 2 、 Figures 5 to 9 As shown, the covering type foot pressing mechanism 7 includes an anti-slip pad 71 fixedly connected to one side of the flat plate 1 close to the evaluator 4. A limiting shaft 75 is rotatably connected to the inner wall of the flat plate 1. The top of the limiting shaft 75 penetrates through the top of the flat plate 1 and is fixedly connected with a threaded sleeve 74. A threaded column 710 is threadedly connected to the inner wall of the threaded sleeve 74. The top of the threaded column 710 is rotatably connected with a T-shaped plate 76. Arc-shaped panels 73 are fixedly connected to both sides of the T-shaped plate 76. Elastic pads 72 are fixedly connected to the bottom of the two arc-shaped panels 73;

[0046] The covering type foot pressing mechanism 7 further includes a chute box 78 fixedly connected to the top of the flat plate 1. The chute box 78 is located on one side of the middle of the anti-slip pad 71 away from the threaded sleeve 74. A movable rod 77 is slidably connected to the inner wall of the chute box 78. A second sliding groove 717 is formed at the bottom of the T-shaped plate 76. The top of the movable rod 77 is movably connected within the second sliding groove 717;

[0047] The covering presser foot mechanism 7 further includes a fixed sleeve 713 fixedly connected to the bottom of the movable rod 77. A second spring 716 is fixedly connected to the inner wall of the fixed sleeve 713. One end of the second spring 716 away from the fixed sleeve 713 is fixedly connected to a telescopic column 711. The telescopic column 711 slidably penetrates through the inner wall of the movable rod 77. A plurality of round holes 712 are equidistantly formed on one side of the chute box 78 away from the second spring 716. The outer wall of the telescopic column 711 is slidably clamped in the round holes 712;

[0048] The covering presser foot mechanism 7 further includes a push plate 79. The push plate 79 is slidably connected to one side of the chute box 78 close to the round holes 712. A first spring 714 is fixedly connected to both the push plate 79 and the bottom of the chute box 78. A plurality of bumps 715 are fixedly connected to one side of the push plate 79 close to the chute box 78 at equal intervals;

[0049] The outer diameter of the bump 715 matches the inner diameter of the round hole 712, and the distance between the bump 715 and the round hole 712 is set to be the same;

[0050] The threaded sleeve 74 is located on one side of the flat plate 1 close to the evaluator 4;

[0051] Wherein: A handwheel for rotation is fixedly connected to the outer wall of the threaded sleeve 74, and the limiting shaft 75 is used to keep the threaded sleeve 74 rotating smoothly.

[0052] The effects achieved by this embodiment are as follows: In the prior art, when most testers sit up during sit-ups, they will unconsciously lift their feet upward and abut against the presser foot device. The design of the stick makes the contact area with the instep smaller, which does not conform to the curve of the human foot, resulting in an increase in the force on the instep. After doing sit-ups multiple times, the instep is prone to pain, which distracts the tester's attention and makes it difficult for them to continue the test with standardized movements. Compared with the prior art, by implementing this embodiment, the setting of the covering presser foot mechanism 7 can cooperate with the covering arc-shaped panel 73 and the elastic pad 72 during sit-ups, which is more in line with the curve of the human instep. At the same time, it is beneficial to disperse the extrusion force, can increase the comfort of the tester, and helps to concentrate attention and standardize their own movements.

[0053] The complete usage steps and working principles of the above embodiment are as follows:

[0054] In the initial state: The pulley 67 is located in the middle of the first chute 66. The top of the seat cushion 63 is parallel to the soft pad 5. The threaded column 710 is completely located inside the threaded sleeve 74. The push plate 79 and the chute box 78 are away from each other. The first spring 714 and the round holes 712 are both in a natural and relaxed state.

[0055] During use, after the device is debugged, the tester can put on shoes and step onto the flat plate 1. Place both feet on both sides of the anti-slip pad 71, within the included angle between the anti-slip pad 71 and the elastic pad 72. Then sit on the seat cushion 63. Next, overlap the two straps 62 on the abdomen and fix them with the magic tape 61. The straps 62 do not need to be tightened to prevent hindering the abdominal force during sit-ups. When doing sit-ups, the tester bends the legs, lies on the soft pad 5 with the upper body reclined, holds the head with both hands, and exerts force on the abdomen. Using the buttocks as a fulcrum, the upper body bends. Therefore, under the action of the change in the body's center of gravity, the buttocks drive the seat cushion 63 and the arc-shaped support plate 65 to move forward or backward and squeeze, causing the arc-shaped support plate 65 to slide on the top of the pulley 67. The pulley 67 can not only reduce the frictional resistance of the arc-shaped support plate 65 but also cooperate with the first chute 66 to limit and support the seat cushion 63, ensuring that the position of the tester's buttocks remains within the fixed range of the first chute 66, thereby preventing the body from shifting and enabling the number of sit-ups done by the tester to be accurately sensed and measured. In addition, after the test is completed, the operator can lift the side of the flat plate 1 away from the evaluation device 4 upward by an appropriate angle, so that the walking wheels 64 contact the ground and support the entire flat plate 1. Then the flat plate 1 can be directly dragged away for storage, which is convenient for operation, saving time and effort;

[0056] Please refer to the above working process Figures 1 to 4 。

[0057] Furthermore, before starting to do sit-ups, the tester's feet need to be fixed. Through the arc-shaped design of the arc panel 73 and the elastic pad 72, it better conforms to the instep curve of the human body and increases the instep coverage area when pressing the feet, which is beneficial to dispersing the extrusion force and avoiding foot pain when the tester does sit-ups repeatedly. Also, due to the difference in the thickness of the soles of the feet according to the age of the tester, to ensure appropriate and effective foot pressing, the handwheel on the threaded sleeve 74 can be rotated to extend or retract the threaded column 710 in the threaded sleeve 74 to adjust the height of the toe part. After the tester's feet are placed between the elastic pad 72 and the anti-slip pad 71, then press down the arc panel 73 to push the elastic pad 72 to wrap the instep of the tester's foot. At this time, the movable rod 77 will also move downward. When moving, the telescopic column 711 squeezes the second spring 716 and contracts into the fixed sleeve 713 until it reaches an appropriate position. Then, the elastic force of the second spring 716 pops out the telescopic column 711 and locks it in the round hole 712. After this is completed, the tester can press the push plate 79 to approach the direction of the chute box 78 until the convex block 715 is completely engaged in the round hole 712 and fills the entire round hole 712. At this time, the telescopic column 711 can maintain the contracted state of squeezing the second spring 716. As the movable rod 77 is instantaneously pulled out of the inner wall of the chute box 78, it can not only simplify the operation and quickly complete unlocking but also reduce the frictional loss between the telescopic column 711 and the round hole 712, improving the service life of the device;

[0058] Please refer to the above working process Figure 1, Figure 2 , Figures 5 to 9 .

[0059] The circuits and controls involved in the present invention are all prior arts and will not be elaborated here.

[0060] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sit-up assessment device for standardizing test movements, comprising a flat plate (1), one side of the flat plate (1) is fixedly connected to an assessor (4), the other side of the flat plate (1) is fixedly connected to a cushion (5), a side of the edge of the flat plate (1) close to the cushion (5) is detachably connected to a low probe (2), and a side of the edge of the flat plate (1) close to the assessor (4) is detachably connected to a high probe (3), characterized in that: Also included are: An action positioning mechanism (6) is used to keep the test subject's hip position within a fixed range to prevent deviation; The covering foot pressing mechanism (7) is used for appropriately covering and pressing the feet of different testers.

2. A sit-up assessment device for standardizing test movements according to claim 1, characterized in that: The action positioning mechanism (6) includes an arc-shaped support plate (65) slidably connected to the inner wall of the cushion (5), a pair of first slide grooves (66) are opened at the bottom of the arc-shaped support plate (65), a pair of pulleys (67) are rotatably connected to the inner wall of the middle part of the plate (1), and the outer wall of the pulley (67) is slidably connected to the first slide groove (66), the inner wall of the arc-shaped support plate (65) is fixedly connected to the seat cushion (63), the top two sides of the arc-shaped support plate (65) are fixedly connected to the straps (62), and the two straps (62) are fixedly connected to a pair of Velcro (61) on the side away from the arc-shaped support plate (65), and the edge of the plate (1) close to the evaluator (4) is fixedly connected to a pair of walking wheels (64).

3. A sit-up assessment device for standardizing test movements according to claim 1, characterized in that: The covering presser foot mechanism (7) comprises an anti-slip pad (71) fixedly connected to a side of the flat plate (1) close to the evaluator (4); the inner wall of the flat plate (1) is rotatably connected to a limiting shaft (75); the top of the limiting shaft (75) passes through the top of the flat plate (1) and is fixedly connected to a threaded sleeve (74); the inner wall of the threaded sleeve (74) is threadedly connected to a threaded column (710); the top of the threaded column (710) is rotatably connected to a T-shaped plate (76); both sides of the T-shaped plate (76) are fixedly connected to arc panels (73); and the bottoms of the two arc panels (73) are fixedly connected to elastic pads (72).

4. A sit-up assessment device for standardizing test movements according to claim 3, characterized in that: The covering presser foot mechanism (7) also includes a slide box (78) fixedly connected to the top of the flat plate (1), the slide box (78) is located on the side of the middle of the anti-slip pad (71) away from the threaded sleeve (74), the inner wall of the slide box (78) is slidably connected to a movable rod (77), the bottom of the T-shaped plate (76) is provided with a second slide groove (717), and the top of the movable rod (77) is movably connected to the second slide groove (717).

5. A sit-up test device for standardizing test movements according to claim 4, characterized in that: The covering presser foot mechanism (7) also includes a fixing sleeve (713) fixedly connected to the bottom of the movable rod (77); the inner wall of the fixing sleeve (713) is fixedly connected to a second spring (716); one end of the second spring (716) away from the fixing sleeve (713) is fixedly connected to a telescopic column (711); the telescopic column (711) slides through the inner wall of the movable rod (77); a side of the slide slot box (78) away from the second spring (716) is equidistantly provided with a plurality of circular holes (712); the outer wall of the telescopic column (711) is slidably engaged in the circular holes (712).

6. A sit-up test device for standardizing test movements according to claim 5, characterized in that: The covering presser foot mechanism (7) also includes a push plate (79), the push plate (79) is slidably connected to a side of the slide slot box (78) close to the circular hole (712), the push plate (79) and the bottom of the slide slot box (78) are fixedly connected to a first spring (714), and a plurality of protrusions (715) are fixedly connected to the side of the push plate (79) close to the slide slot box (78) at equal intervals.

7. A sit-up test device for standardizing test movements according to claim 6, characterized in that: The outer diameter of the protrusion (715) matches the inner diameter of the circular hole (712), and the spacing between the protrusion (715) and the circular hole (712) is set to be the same.

8. A sit-up test device for standardizing test movements according to claim 3, characterized in that: The threaded sleeve (74) is located on a side of the flat plate (1) close to the evaluation device (4).

9. A sit-up test device for standardizing test movements according to claim 2, characterized in that: The height of the seat cushion (63) is consistent with the height of the soft cushion (5).

Images