Sit-and-reach testing device for teaching and training

Abstract

The utility model relates to a sit-and-reach testing device for teaching and training, which belongs to the technical field of sports equipment and comprises a measuring base plate, a fixing plate and two groups of fixing components for pressing and limiting knee parts of a user, and a first side plate, a second side plate and a fixing side plate are fixedly mounted on each of two sides of the measuring base plate; a measuring plate is arranged above the fixed plate, sliding grooves are formed in the two sides of the measuring plate, L-shaped sliding blocks are slidably connected into the sliding grooves, the same moving plate is fixedly installed on the tops of the two L-shaped sliding blocks, the moving plate is in sliding fit with the top of the measuring plate, scales are arranged on the top of the measuring plate, and the moving plate is matched with the scales. The device is used for recording the sit-and-reach score of a user, and accurate recording of the sit-and-reach score of the user is achieved through combination of a measuring base plate, a fixed plate, a measuring plate, a sliding groove, an L-shaped sliding block, a movable plate, scales and other components.

Description

Technical Field

[0001] The utility model belongs to the technical field of sports equipment and relates to a sit-and-reach test device for teaching and training. Background Art

[0002] In physical education and fitness training, the sit-and-reach test is a commonly used item to assess students' flexibility. Flexibility refers to the ability of joints, muscles, tendons, and ligaments to stretch when performing movements. Greater flexibility indicates a greater range of motion and greater joint flexibility. The sit-and-reach test is often performed using a sit-and-reach test device. However, existing sit-and-reach test devices still present the following issues:

[0003] During the sit-and-reach test, the knees of the person being measured are prone to movement, which can easily affect the accuracy of the test results. Although some existing sit-and-reach test devices can limit the user's knees, the limiting effect is not good enough, and the operation is not convenient enough, making them inconvenient to use. Utility Model Content

[0004] In view of this, the present invention provides a sitting forward flexion test device for teaching and training in order to solve the shortcomings in the prior art that the knees of the person to be measured are easy to move during the test, and some existing devices have insufficient limiting effect on the knees and are not convenient to use.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] A sit-and-reach test device for teaching and training, comprising: a measuring pad, a fixing plate, and two sets of fixing components for pressing and limiting the user's knees;

[0007] A first side plate, a second side plate and a fixed side plate are fixedly installed on both sides of the measuring pad, the fixed side plate is located between the first side plate and the second side plate, and the first side plate, the fixed side plate and the second side plate on the same side are sequentially connected and fixedly connected;

[0008] A measuring plate is provided above the fixed plate, which is fixedly connected to the top of the measuring pad through the fixed plate, and the bottom of the measuring plate is fixedly connected to the top of the fixed plate. Slide grooves are provided on both sides of the measuring plate, and L-shaped sliders are slidably connected in the two slide grooves. The same movable plate is fixedly installed on the top of the two L-shaped sliders, and the movable plate slides together with the top of the measuring plate. A scale is provided on the top of the measuring plate, and the movable plate cooperates with the scale to record the user's sit-and-reach performance.

[0009] Furthermore, the fixing assembly includes a movable seat arranged on the fixed side panel, a first mounting groove is provided on the top of the movable seat, a limit plate is rotatably installed between the inner walls on both sides of the first mounting groove, an adjustment groove is provided inside the limit plate, a sponge pressing pad is provided below the limit plate, a groove is provided at the bottom of the sponge pressing pad for fitting with the user's legs, the top of the sponge pressing pad is slidably connected to the inner wall of the adjusting groove through a slider, a screw is fixedly installed on the top of the sponge pressing pad, one end of the screw passes through the adjusting groove and is threadedly connected to a fixing nut, and the fixing nut cooperates with the limit plate to complete the fixation of the sponge pressing pad.

[0010] Furthermore, the fixing assembly also includes a second mounting groove opened on the top of the movable seat, a ratchet is rotatably connected between the inner walls on both sides of the second mounting groove, one side of the ratchet is fixedly connected to the limit plate through a connecting shaft, a connecting rod is rotatably installed inside the second mounting groove, the outer wall fixing sleeve of the connecting rod is provided with a pawl, the outer wall sleeve of the connecting rod is provided with a torsion spring, one end of the torsion spring is fixedly connected to the movable seat, and the other end of the torsion spring is fixedly connected to one side of the pawl, and the pawl cooperates with the ratchet to complete the unidirectional rotation fixation of the limit plate.

[0011] Furthermore, racks are fixedly installed on the tops of the two fixed side plates, and the two moving seats are slidably connected to the tops of the corresponding fixed side plates. A limiting groove is provided at the bottom of the moving seat, and a card block is slidably connected inside the limiting groove. The bottom of the card block is provided with multiple teeth, and the card block is meshed with adjacent racks to complete the fixation of the moving seat. A spring is fixedly installed on the top of the card block, and the other end of the spring is fixedly connected to the inner wall of one side of the limiting groove. A groove is provided on one side of the card block, and one end of the connecting rod rotates through the second mounting slot and extends into the limiting slot. A cam is fixedly installed on one end of the connecting rod, and the cam is located in the groove on one side of the card block and abuts against the inner wall of the groove. The cam is used to abut the card block to rise, complete the separation of the card block and the rack, and thereby realize the unlocking of the moving seat.

[0012] Furthermore, a shift plate is fixedly mounted on an outer wall of one side of the pawl. The shift plate is located in the second mounting groove, and the shift plate is used to shift the connecting rod to rotate.

[0013] Furthermore, a soft rubber cushion is fixedly installed on the top of the measuring pad. The soft rubber cushion is located at an end of the measuring pad away from the fixed plate, and is used to ensure good comfort for the user during measurement.

[0014] When the user lowers the limit plate, the user also needs to adjust the position of the sponge pressing pad, and turn the fixing nut to make the sponge pressing pad close to the user's legs. When the user moves the gripper up and down, the gripper can be adjusted to the desired position and the gripper can be adjusted to the desired position, thereby ensuring that the user has a firm grip on the knee.

[0015] The beneficial effects of the present invention are:

[0016] 1. The utility model discloses a sit-and-reach test device for teaching and training. Through the combination of a measuring pad, a fixed plate, a measuring plate, a slide groove, an L-shaped slider, a movable plate and a scale, the user can accurately record the sit-and-reach test results. The user only needs to sit on the measuring pad and push the movable plate forward to complete the test. The operation is simple and quick.

[0017] 2. The utility model discloses a sit-and-reach test device for teaching and training. By setting a fixing component and utilizing the one-way rotation fixing function of the pawl and the ratchet, the device can effectively fix the user's knees, prevent the knees from moving during the test, and improve the accuracy of the test results. At the same time, the fixing component adopts a movable design, which can adapt to the body shapes and test requirements of different users, and the adjustment operation is simple and convenient, easy to use, and effectively improves the efficiency of the test.

[0018] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a three-dimensional structural diagram of a sit-and-reach test device for teaching and training proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a measuring pad of a sit-and-reach test device for teaching and training proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the measuring plate and the moving plate of a sit-and-reach test device for teaching and training proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the fixed component structure of a sit-and-reach test device for teaching and training proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the disassembled structure of the fixed components of a sit-and-reach test device for teaching and training proposed by the present invention;

[0025] Figure 6 This is a schematic cross-sectional view of the fixed components of a sit-and-reach test device for teaching and training proposed by the present invention;

[0026] Figure 7 This is a schematic cross-sectional view of the fixing assembly of the sit-and-reach test device for teaching and training proposed by the present invention from another perspective;

[0027] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of part A.

[0028] Figure numerals: 1. Measuring pad; 2. First side panel; 3. Second side panel; 4. Fixed side panel; 5. Soft rubber seat cushion; 6. Fixed plate; 7. Rack; 8. Measuring plate; 9. Slide groove; 10. L-shaped slider; 11. Moving plate; 12. Scale; 13. Moving seat; 14. Limiting plate; 15. Sponge pressing pad; 16. First mounting groove; 17. Adjusting groove; 18. Screw; 19. Fixing nut; 20. Second mounting groove; 21. Ratchet; 22. Pawl; 23. Switch plate; 24. Connecting rod; 25. Torsion spring; 26. Cam; 27. Block; 28. Spring; 29. ​​Limiting groove. DETAILED DESCRIPTION

[0029] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0030] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0031] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. Example 1

[0032] Reference Figure 1-8A sit-and-forth flexion test device comprises: a measuring pad 1, a fixing plate 6 arranged on the top of the measuring pad 1, and two sets of fixing components. The two sets of fixing components are respectively located on the fixed side plates 4 on both sides, and are used to press and limit the user's knees to ensure that the user's knees do not move during the test, thereby improving the accuracy of the test.

[0033] The first side plate 2, the second side plate 3 and the fixed side plate 4 are fixedly installed on both sides of the measuring pad 1; the fixed side plate 4 is located between the first side plate 2 and the second side plate 3, and the three side plates are connected and fixedly connected in sequence on the same side to form a stable frame.

[0034] A measuring plate 8 is provided above the fixed plate 6, which is fixedly connected to the top of the measuring pad 1 through the fixed plate 6. At the same time, the bottom of the measuring plate 8 is fixedly connected to the top of the fixed plate 6 to form a stable supporting structure; sliding grooves 9 are provided on both sides of the measuring plate 8, and L-shaped sliders 10 are slidably connected in the two sliding grooves 9. The top of the two L-shaped sliders 10 is fixedly installed with the same moving plate 11, and the moving plate 11 slides with the top of the measuring plate 8 to ensure that the moving plate 11 can move smoothly along the measuring plate 8. A scale 12 is provided on the top of the measuring plate 8, and the moving plate 11 cooperates with the scale 12 to record the user's sit-and-reach performance.

[0035] The fixing assembly mainly includes a movable seat 13 arranged on the fixed side panel 4, and a first mounting groove 16 is provided on the top of the movable seat 13. A limit plate 14 is rotatably installed between the inner walls on both sides of the first mounting groove 16, and an adjustment groove 17 is provided inside the limit plate 14. A sponge pressing pad 15 is provided below it, and a groove is provided at the bottom of the sponge pressing pad 15 for fitting with the user's legs to ensure that the user feels comfortable during the test. The top of the sponge pressing pad 15 is slidably connected to the inner wall of the adjusting groove 17 through a slider, and a screw 18 is also fixedly installed on the top thereof. One end of the screw 18 passes through the adjusting groove 17 and is threadedly connected to a fixing nut 19, which cooperates with the limiting plate 14. By rotating the fixing nut 19, the height of the sponge pressing pad 15 can be adjusted to adapt to the knee height of different users, thereby completing the pressure limit on the user's knee.

[0036] The fixing assembly also includes a second mounting groove 20 opened at the top of the movable seat 13, and a ratchet 21 is rotatably connected between the inner walls on both sides of the second mounting groove 20. One side of the ratchet 21 is fixedly connected to the limit plate 14 through a connecting shaft, and a connecting rod 24 is rotatably installed inside the second mounting groove 20. The outer wall of the connecting rod 24 is fixedly sleeved with a pawl 22, and the outer wall of the connecting rod 24 is also sleeved with a torsion spring 25. One end of the torsion spring 25 is fixedly connected to the movable seat 13, and the other end is fixedly connected to one side of the pawl 22. The pawl 22 cooperates with the ratchet 21. When the pawl 22 engages with the ratchet teeth of the ratchet 21, the one-way rotation fixation of the limit plate 14 can be completed to prevent it from accidentally rotating during use, thereby ensuring that it has a better pressing and limiting effect on the user's knee.

[0037] In order to achieve the fixation of the moving seat 13, the tops of the two fixed side plates 4 are fixedly installed with racks 7, and the two moving seats 13 are slidably connected to the tops of the corresponding fixed side plates 4. The bottom of the moving seat 13 is provided with a limiting groove 29, and the interior of the limiting groove 29 is slidably connected with a card block 27. The bottom of the card block 27 is provided with a plurality of card teeth, which mesh with the adjacent racks 7, thereby completing the fixation of the moving seat 13. The top of the card block 27 is fixedly installed with a spring 28, and the other end of the spring 28 is fixedly connected to the inner wall of one side of the limiting groove 29. , ensuring that the block 27 can automatically reset and engage with the rack 7; in addition, a groove is provided on one side of the block 27, and one end of the connecting rod 24 rotates through the second mounting groove 20 and extends into the limit groove 29, and a cam 26 is fixedly installed on one end of the connecting rod 24, which is located in the groove on one side of the block 27 and abuts against the inner wall of the groove; when it is necessary to unlock the moving seat 13, it is only necessary to rotate the connecting rod 24 so that the cam 26 abuts against the block 27 and rises, completing the separation of the block 27 and the rack 7, and the moving seat 13 can be unlocked.

[0038] In order to facilitate the user to operate the connecting rod 24 to rotate, a dial plate 23 is fixedly installed on the outer wall of one side of the pawl 22. The dial plate 23 is located in the second mounting groove 20. The user only needs to dial the dial plate 23 to easily rotate the connecting rod 24. At the same time, since the dial angle of the dial plate 23 is within the range of 0~90°, it is necessary to ensure that the initial position of the cam 26 and the length of the protrusion are reasonable and appropriate, so that the block 27 can be pushed up within the rotation range of 0~90° to complete the separation of its teeth from the rack 7.

[0039] This application can be used in the field of sports equipment technology, and can also be used in other fields applicable to this application. Example 2

[0040] refer to Figure 1 、 5 , 6, 7, based on the improvement of Example 1: a sit-and-reach test device for teaching and training, which is applied to the field of sports equipment technology;

[0041] To improve user comfort, a soft rubber cushion 5 is fixedly mounted on the top of the measuring plate 1, located at the end of the measuring plate 1 away from the fixing plate 6. The soft rubber cushion 5 has good elasticity and comfort, ensuring that the user feels more comfortable and stable support when performing the sit-and-reach test. The soft rubber cushion 5 is moderately thick and will not affect the user's measurement.

[0042] The working principle and use process of this technical solution are as follows: when in use, the user can sit on the soft rubber seat cushion 5 and ensure that the sole of his foot is completely in contact with one side of the fixed plate 6. The area of ​​the soft rubber seat cushion 5 is large enough to facilitate users of different physiques to sit on the soft rubber seat cushion 5; then the user can push the dial plate 23 upwards, at which time the protruding part of the cam 26 can abut against the block 27 and rise, and the block 27 is separated from the adjacent rack 7, and the user can adjust the position of the movable seat 13 until the movable seat 13 moves to a position close to his knees, and then release the movable seat. 13, at this time, the connecting rod 24 is reset under the action of the torsion spring 25, so that the protrusion of the cam 26 no longer abuts the block 27, and under the action of the spring 28, the block 27 will be engaged with the rack 7 again, completing the fixation of the movable seat 13, and then the user can rotate the limit plate 14. Due to the arrangement of the ratchet 21 and the pawl 22, the limit plate 14 will not be hindered when rotating inward, and the user can rotate the limit plate 14 until the sponge pressing pad 15 is close to the user's leg; while lowering the limit plate 14, the user also needs to press the sponge pressing pad 15 The position of the sponge pressing pad 15 can be adjusted by turning the fixing nut 19 to slightly move it away from the limiting plate 14. At this time, the friction between the sponge pressing pad 15 and the limiting plate 14 is reduced, and the user can adjust the sponge pressing pad 15 and lower the limiting plate 14 to finally place the groove at the bottom of the sponge pressing pad 15 at his knee. Tighten the fixing nut 19 and fix the sponge pressing pad 15. At this time, the pressing limit of the user's knee is completed. Since the limiting plate 14 can only rotate in one direction at this time, the limiting plate 14 cannot be lifted, which can ensure the limiting effect on the user's knee. The result is better; according to the above operation, the pressing limit of the other knee is completed, and then the sit-and-reach test can be started; during the test, the user needs to use his hand to push the movable plate 11 back, and finally use the scale 12 on the measuring plate 8 to complete the record of the test results according to the position of the movable plate 11; after completing a test, the movable plate 11 can be pushed back to its original position again for the next test; after the test, the user only needs to push the dial plate 23 upwards again to complete the unlocking of the limit plate 14. The operation is simple and fast, and it is convenient for the tester to use.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A sit-and-reach test device for teaching and training, characterized in that: include: A measuring pad (1), wherein a first side plate (2), a second side plate (3) and a fixed side plate (4) are fixedly mounted on both sides of the measuring pad (1), the fixed side plate (4) is located between the first side plate (2) and the second side plate (3), and the first side plate (2), the fixed side plate (4) and the second side plate (3) on the same side are sequentially connected and fixedly connected; The apparatus further comprises a fixed plate (6), a measuring plate (8) being provided above the fixed plate (6), the measuring plate (8) being fixedly connected to the top of the measuring pad (1) through the fixed plate (6), the bottom of the measuring plate (8) being fixedly connected to the top of the fixed plate (6), a sliding groove (9) being provided on both sides of the measuring plate (8), an L-shaped slider (10) being slidably connected in the two sliding grooves (9), a same movable plate (11) being fixedly installed on the top of the two L-shaped sliders (10), the movable plate (11) being slidably matched with the top of the measuring plate (8), a scale (12) being provided on the top of the measuring plate (8), the movable plate (11) being matched with the scale (12) for recording the user's sit-and-reach performance; It also includes two groups of fixing components, which are used to press and limit the user's knee area.

2. A sit-and-reach test device for teaching and training according to claim 1, characterized in that: The fixing assembly includes a movable seat (13) arranged on the fixed side plate (4), a first mounting groove (16) is provided on the top of the movable seat (13), a limit plate (14) is rotatably installed between the inner walls on both sides of the first mounting groove (16), an adjustment groove (17) is provided inside the limit plate (14), a sponge pressing pad (15) is provided below the limit plate (14), a groove is provided at the bottom of the sponge pressing pad (15) for fitting with the user's legs, the top of the sponge pressing pad (15) is slidably connected to the inner wall of the adjustment groove (17) through a slider, a screw (18) is fixedly installed on the top of the sponge pressing pad (15), one end of the screw (18) passes through the adjustment groove (17) and is threadedly connected to a fixing nut (19), and the fixing nut (19) cooperates with the limit plate (14) to complete the fixation of the sponge pressing pad (15).

3. A sit-and-reach test device for teaching and training according to claim 2, characterized in that: The fixing assembly further comprises a second mounting groove (20) provided on the top of the movable seat (13), a ratchet (21) being rotatably connected between the inner walls on both sides of the second mounting groove (20), one side of the ratchet (21) being fixedly connected to the limit plate (14) via a connecting shaft, a connecting rod (24) being rotatably mounted inside the second mounting groove (20), a pawl (22) being fixedly sleeved on the outer wall of the connecting rod (24), a torsion spring (25) being sleeved on the outer wall of the connecting rod (24), one end of the torsion spring (25) being fixedly connected to the movable seat (13), the other end of the torsion spring (25) being fixedly connected to one side of the pawl (22), the pawl (22) cooperating with the ratchet (21) to complete the unidirectional rotation fixation of the limit plate (14).

4. A sit-and-reach test device for teaching and training according to claim 3, characterized in that: The tops of the two fixed side plates (4) are fixedly mounted with racks (7), the two movable seats (13) are slidably connected to the tops of the corresponding fixed side plates (4), the bottoms of the movable seats (13) are provided with limiting grooves (29), the interior of the limiting grooves (29) is slidably connected with a card block (27), the bottom of the card block (27) is provided with a plurality of card teeth, the card block (27) is meshed with the adjacent racks (7), and is used to complete the fixing of the movable seat (13), the top of the card block (27) is fixedly mounted with a spring (28), the spring (29) is fixedly mounted with a spring (29 ... rack The other end of the clamping block (27) is fixedly connected to the inner wall of one side of the limiting groove (29), and a groove is provided on one side of the clamping block (27). One end of the connecting rod (24) rotates through the second mounting groove (20) and extends into the limiting groove (29). A cam (26) is fixedly installed on one end of the connecting rod (24). The cam (26) is located in the groove on one side of the clamping block (27) and abuts against the inner wall of the groove. The cam (26) is used to abut the clamping block (27) to rise, complete the separation of the clamping block (27) and the rack (7), and thereby realize the unlocking of the movable seat (13).

5. A sit-and-reach test device for teaching and training according to claim 4, characterized in that: A shift plate (23) is fixedly mounted on one side outer wall of the pawl (22), the shift plate (23) being located in the second mounting groove (20), and the shift plate (23) being used to shift the connecting rod (24) to rotate.

6. The sit-and-reach test device for teaching and training according to claim 1, characterized in that: A soft rubber seat cushion (5) is fixedly mounted on the top of the measuring pad (1). The soft rubber seat cushion (5) is located at an end of the measuring pad (1) away from the fixing plate (6) and is used to ensure good comfort for the user during measurement.

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