A device for testing the temperature rise of frictional force on the surface of a gymnastics venue

Abstract

This utility model relates to the technical field of sports testing equipment, and in particular to a device for testing the temperature rise of friction on the surface of a gymnastics arena. It includes a drive frame and a drive head connected to the drive frame that can move left and right. The drive head is connected to a movable test platform located below it that can move left and right. A pressing protrusion is fixed to the lower side of the movable test platform, which can exert pressure on the surface of the gymnastics arena and allow an active friction implementation sheet to be applied. A portion of the active friction implementation sheet is positioned between the pressing protrusion and the surface of the gymnastics arena. A temperature sensor is also fixed to the lower side of the movable test platform. The device exhibits high simulation accuracy and precise testing.

Description

Technical Field

[0001] This utility model relates to the field of sports testing equipment technology, and in particular to a testing device for the temperature rise of friction on the surface of a gymnastics field. Background Technology

[0002] Gymnastics uses several types of equipment that include carpeted surfaces, such as those for floor exercise, rhythmic gymnastics, and cheerleading. The requirements for carpet materials are particularly high for rhythmic gymnastics and floor exercise. Due to the nature of gymnastics, there are many twisting movements, and athletes are usually barefoot or wearing rhythmic gymnastics shoes. These twisting movements create friction on the carpet, causing it to heat up. Some substandard carpets can even become "scalding," affecting athletes' training and competition. Currently, there is no equipment on the market that can detect this temperature change caused by friction with specific materials, but the International Gymnastics Federation (FIG) has strict temperature control requirements for the carpets used in rhythmic gymnastics.

[0003] Therefore, there is an urgent need for a device that can test the temperature rise of the gymnastics arena surface. Utility Model Content

[0004] The purpose of this invention is to provide a highly realistic testing device for testing the temperature rise of friction on the surface of a gymnastics arena.

[0005] The above-mentioned objective of this utility model is achieved through the following technical solution: a gymnastics field surface friction temperature rise testing device, including a drive frame and a drive head connected to the drive frame that can move left and right. The drive head is connected to a movable test platform located below it that can move left and right. A pressing protrusion is fixed on the movable test platform, which is located below it and can form pressure with the gymnastics field surface and can be used for the application of active friction implementation sheet. A portion of the active friction implementation sheet can be located between the pressing protrusion and the gymnastics field surface. A temperature sensor is also fixed on the movable test platform located below it.

[0006] As a preferred embodiment of this utility model, the pressing protrusion is in the shape of an inverted trapezoid and forms a bottom pressing plane, a left waist slope, a right waist slope, and a top plane.

[0007] As a preferred embodiment of this invention, at least a portion of the active friction implementing sheet is attached to the bottom pressing plane, the left waist slope, and the right waist slope.

[0008] As a preferred embodiment of this invention, a left clamping device for clamping the left side portion of the sheet subjected to active friction and a right clamping device for clamping the right side portion of the sheet subjected to active friction are installed and connected on the top plane. The left clamping device includes an upper left clamping plate and a lower left clamping plate, and the right clamping device includes an upper right clamping plate and a lower right clamping plate. The lower left clamping plate is fixed at the top plane, and the upper left clamping plate can move up and down relative to the lower left clamping plate. The lower right clamping plate is fixed at the top plane, and the upper right clamping plate can move up and down relative to the lower right clamping plate.

[0009] As a preferred embodiment of this invention, the temperature sensor is a wireless temperature sensor and is flexibly connected to the mobile test bench.

[0010] As a preferred embodiment of this invention, the temperature sensor is provided with wheels at its bottom for movement.

[0011] As a preferred embodiment of this utility model, the movable test platform has a rectangular frame structure, and the pressing protrusion is integrally connected between the front frame edge and the rear frame edge of the movable test platform. A left hole is formed between the left side of the pressing protrusion and the left frame edge of the movable test platform, allowing the left side portion of the active friction implementation sheet to pass through from bottom to top. A right hole is formed between the right side of the pressing protrusion and the right frame edge of the movable test platform, allowing the right side portion of the active friction implementation sheet to pass through from bottom to top.

[0012] As a preferred embodiment of this utility model, a connecting rod is fixed to the lower part of the drive head, a connecting plate is fixed to the movable test platform, and a front and rear extending pin is passed through and connected between the connecting plate and the connecting rod, so that the connecting plate can rotate around the connecting rod.

[0013] As a preferred embodiment of this utility model, the drive frame includes a left column and a right column, and a movable crossbeam that can move up and down is connected between the left column and the right column. A horizontal slider that can move left and right is installed and connected on the movable crossbeam, and the drive head is fixed on the horizontal slider.

[0014] As a preferred embodiment of this utility model, a left longitudinal slider and a right longitudinal slider capable of moving up and down are respectively installed and connected on the left column and the right column. The two ends of the moving beam are respectively fixed on the left longitudinal slider and the right longitudinal slider. A transverse motor for moving the transverse slider left and right is installed and connected on the moving beam. A longitudinal motor for moving the left longitudinal slider and the right longitudinal slider up and down is installed and connected on the left column or the right column.

[0015] The advantages of this invention are: high simulation accuracy, which can simulate the real temperature generated by friction when a person wears shoes on a gymnastics field, high testing accuracy, relatively simple operation, good flexibility and adjustability, and applicability to many different venues. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the heating test device in the embodiment;

[0017] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure from a lower perspective;

[0018] Figure 3 yes Figure 1 A three-dimensional structural diagram of the middle structure during the assembly of the active friction implementation sheet;

[0019] Figure 4 yes Figure 3 A three-dimensional structural diagram of the sheet material after active friction assembly. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.

[0022] Examples, such as Figure 1-4As shown, a device for testing the temperature rise of friction on the surface of a gymnastics arena includes a drive frame and a drive head 1 connected to the drive frame, which can move left and right. The drive head 1 can be a rectangular block structure. The drive head 1 is connected to a movable test platform 2 located below it, which can move left and right. A downward pressure protrusion 4 is fixed on the movable test platform 2, which can form pressure with the surface of the gymnastics arena and can also be used for the application of an active friction implementation sheet 3. The active friction implementation sheet 3 is a sheet material that replaces a real shoe. This sheet material is made of shoe sole material, such as rubber sole material, tendon sole material, or cloth shoe sole material. A portion of the active friction implementation sheet 3 can be placed between the downward pressure protrusion 4 and the gymnastics arena. Between the surfaces, the downward-pressing protrusion 4 presses down against the active friction implementation sheet 3, creating downward pressure on the gymnastics arena surface. Then, the moving drive head 1 moves the test platform 2, causing the downward-pressing protrusion 4 and the active friction implementation sheet 3 to move and generate friction with the gymnastics arena surface. Furthermore, a temperature sensor w is fixed on the lower side of the moving test platform 2. After the aforementioned friction is generated, the surface temperature of the arena will rise, and the temperature sensor w can detect the change in surface temperature. The active friction implementation sheet 3 simulates the action of a person wearing shoes rubbing against the arena surface, thus simulating this process. This design has high realism and high testing accuracy. Here, the active friction implementation sheet 3 should be stretched as taut as possible on the downward-pressing protrusion 4 to ensure that the two are relatively stationary.

[0023] Preferably, the pressing protrusion 4 is in the shape of an inverted trapezoid, forming a bottom pressing plane 41, a left waist slope 42, a right waist slope 43, and a top plane 44. The cross-section of the pressing protrusion 4 is trapezoidal, and the whole is a trapezoidal prism. The two top surfaces of the pressing protrusion 4 are on the front and back sides, while the other four surfaces are the bottom pressing plane 41, the left waist slope 42, the right waist slope 43, and the top plane 44. The top plane 44 is on top, the bottom pressing plane 41 is on the bottom, and the two slopes are on the left and right sides. However, the pressing protrusion 4 does not necessarily have to be an absolute trapezoidal shape. It is better to approximate a trapezoidal shape. We make an arc transition at the four corners of the pressing protrusion 4 to form a rounded corner structure 45. This will make it smoother, reduce sharp corner structures, avoid damage to the active friction sheet 3, and also make the structure itself more stable and less prone to bumps and damage.

[0024] Furthermore, at least a portion of the active friction sheet 3 is attached to the bottom pressing plane 41, the left waist slope 42, and the right waist slope 43, meaning the active friction sheet 3 is tensioned on at least these three surfaces, which improves test stability. Specific tensioning settings also include the following structures:

[0025] A left clamping device for clamping the left side of the active friction sheet 3 and a right clamping device for clamping the right side of the active friction sheet 3 are installed and connected on the top plane 44. The left clamping device includes an upper left clamping plate 51 and a lower left clamping plate 52, and the right clamping device includes an upper right clamping plate 53 and a lower right clamping plate 54. The lower left clamping plate 52 is fixed at the top plane 44, and the upper left clamping plate 51 can move up and down relative to the lower left clamping plate 52. A lifting cylinder can be installed on the top plane 44. By connecting the lifting cylinder to the upper left clamping plate 51, the upper left clamping plate 51 can be raised and lowered to achieve clamping. Similarly, the lower right clamping plate 54 is fixed at the top plane 44, and the upper right clamping plate 53 can move up and down relative to the lower right clamping plate 54. Of course, other existing implementation methods can also be used to allow the upper left clamping plate 51 and the upper right clamping plate 53 to move up and down. Alternatively, other mechanical locking mechanisms can be used. For example, a detachable locking mechanism, such as a locking pin, can be installed between the upper left clamping plate 51 and the lower left clamping plate 52. During operation, the left side of the active friction sheet 3 is placed on the lower left clamping plate 52, and then the upper left clamping plate 51 presses against the upper side of the active friction sheet 3 and locks it in place. This clamps the left side of the active friction sheet 3 between the upper left clamping plate 51 and the lower left clamping plate 52. Alternatively, the aforementioned lifting cylinder structure can be used, allowing the upper left clamping plate 51 to move downwards and press against the upper side of the active friction sheet 3 for clamping. The right side is similar to the left side. To replace the active friction sheet 3, simply remove the upper left clamping plate 51.

[0026] Furthermore, the movable test platform 2 has a rectangular frame structure. The pressing protrusion 4 is integrally connected between the front and rear frame edges of the movable test platform 2. A left hole 201 is formed between the left side of the pressing protrusion 4 and the left frame edge of the movable test platform 2, allowing the left side portion of the active friction implementation sheet 3 to pass through from bottom to top. A right hole 202 is formed between the right side of the pressing protrusion 4 and the right frame edge of the movable test platform 2, allowing the right side portion of the active friction implementation sheet 3 to pass through from bottom to top. In order to achieve the above-mentioned clamping action, the left and right sides of the active friction implementation sheet 3 need to be tensioned upward and introduced into the area where the top plane 44 is located. Therefore, the passage structure of the left hole 201 and the right hole 202 is required. The shape of these two holes can be rectangular.

[0027] Preferably, the temperature sensor w is a wireless temperature sensor and is flexibly connected to the mobile test platform 2. Flexible connection means that the temperature sensor w is connected to the mobile test platform 2 via a flexible hose or strap. This is because the mobile test platform 2 will adjust its position by moving up and down. A rigid connection would cause the temperature sensor w to be pressed too tightly against the surface, resulting in excessive friction and damage. A flexible connection allows the temperature sensor w to maintain a low pressure on the surface and automatically adjust, providing better protection for the temperature sensor w. Furthermore, the wireless temperature sensor, through its built-in wireless communication module such as Wi-Fi or Bluetooth, can monitor and record the ambient temperature in real time and transmit the data to smartphones, computers, or other devices. It can monitor environmental changes in real time and transmit data wirelessly to a receiver or other devices.

[0028] Furthermore, the temperature sensor w is equipped with wheels w1 at its bottom for movement, which provides better protection. During left and right movement, the temperature sensor w can stay close to the surface of the field without causing friction and damage.

[0029] Preferably, a connecting rod 11 is fixed to the lower part of the drive head 1, and a connecting plate 12 is fixed to the movable test platform 2. A front and rear extension pin 13 is passed through and connected between the connecting plate 12 and the connecting rod 11, so that the connecting plate 12 can rotate around the connecting rod 11. Two connecting plates 12 can be arranged at intervals. The lower part of the connecting rod 11 is located at the interval between the front and rear connecting plates 12 and the three are connected in series by the front and rear extension pin 13, so that the connecting plate 12 can swing up and down relative to the connecting rod 11. This design is because the surface of the site may be uneven or have obstacles, so that the lower position of the pressing protrusion 4 can be adjusted up and down. If the connecting rod 11 and the connecting plate 12 are fixed, the pressing protrusion 4 will be fixed. If the site is not suitable for adjustment, mechanical impact or wear will occur, which will damage the equipment. Furthermore, this design allows the downward-pressing protrusion 4 to press itself against the surface, reducing the influence of external forces. Holes for the front and rear extension pins 13 to pass through are made on the connecting rod 11 and connecting plate 12. The diameter of these holes is larger than the diameter of the front and rear extension pins 13, creating a gap between the connecting plate 12 and the front and rear extension pins 13. This allows the downward-pressing protrusion 4 to press against the surface like a free-falling object under its own weight after vertical adjustment. The connecting rod 11 only generates a lateral dragging force, thus reducing interference factors such as vertical forces affecting friction. Of course, counterweights can also be detachably mounted on the downward-pressing protrusion 4. For example, a mounting rod can be fixed to the downward-pressing protrusion 4, and corresponding counterweights can be stacked on the mounting rod. The overall weight also includes the moving test platform 2, sensors, etc., which can be pre-weighed; only the number and size of the counterweights need to be calculated later. This can simulate the temperature rise caused by friction when using the device by people of different weights.

[0030] Preferably, the drive frame includes a left column 61 and a right column 62, and a movable crossbeam 63 connecting the left column 61 and the right column 62, which can move up and down. A horizontal slider 630 that can move left and right is mounted on the movable crossbeam 63. The drive head 1 is fixed to the horizontal slider 630. In use, the left column 61 and the right column 62 can be installed with the corresponding ground or building using existing assembly methods, preferably using a fixing method that is easy to assemble and disassemble, because sometimes the position needs to be adjusted or replaced. With this design, the drive head 1 can move left and right with the horizontal slider 630, thereby driving the downward pressing protrusion 4 to move left and right, generating friction.

[0031] Furthermore, left longitudinal sliders 610 and right longitudinal sliders 620, which can move up and down, are respectively installed and connected to the left column 61 and right column 62. The two ends of the moving beam 63 are respectively fixed to the left longitudinal sliders 610 and right longitudinal sliders 620. A transverse motor 64 for moving the transverse slider 630 left and right is installed and connected to the moving beam 63. A longitudinal motor 65 for moving the left longitudinal sliders 610 and right longitudinal sliders 620 up and down is installed and connected to the left column 61 or right column 62. The left column 61, right column 62 and moving beam 63 all adopt a slider guide rail structure, which facilitates the sliding of the corresponding sliders. Of course, there will be a lead screw and other transmission structure on the guide rail, so that the corresponding slider can move on the corresponding guide rail. These are all existing conventional moving structures, which will not be described in detail here.

[0032] The above design allows for more quantitative testing of the temperature rise caused by friction on the surface of a gymnastics arena, enabling more accurate and effective testing that meets the requirements of different competitions.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A gymnastic floor surface friction temperature increase testing device, characterized by, The device includes a drive frame and a drive head (1) connected to the drive frame that can move left and right. The drive head (1) is connected to a movable test platform (2) located on its lower side that can move left and right. The movable test platform (2) has a pressing protrusion (4) fixed on its lower side that can form pressure with the surface of the gymnastics field and can be used for the active friction implementation sheet (3) to adhere. A portion of the active friction implementation sheet (3) can be located between the pressing protrusion (4) and the surface of the gymnastics field. The movable test platform (2) also has a temperature sensor (w) fixed on its lower side.

2. A gymnastics floor surface friction temperature test device according to claim 1, wherein, The pressing protrusion (4) is in the shape of an inverted trapezoid and forms a bottom pressing plane (41), a left waist slope (42) and a right waist slope (43) and a top plane (44).

3. A gymnastics floor surface friction temperature increase testing device according to claim 2, wherein, At least a portion of the active friction implementation sheet (3) is attached to the bottom pressing plane (41), the left waist slope (42), and the right waist slope (43).

4. The device for testing the temperature rise of frictional force on the surface of a gymnastics arena according to claim 2, characterized in that, A left clamping device for clamping the left side of the active friction sheet (3) and a right clamping device for clamping the right side of the active friction sheet (3) are installed and connected on the top plane (44). The left clamping device includes an upper left clamping plate (51) and a lower left clamping plate (52). The right clamping device includes an upper right clamping plate (53) and a lower right clamping plate (54). The lower left clamping plate (52) is fixed at the top plane (44). The upper left clamping plate (51) can move up and down relative to the lower left clamping plate (52). The lower right clamping plate (54) is fixed at the top plane (44). The upper right clamping plate (53) can move up and down relative to the lower right clamping plate (54).

5. The device for testing the temperature rise of frictional force on the surface of a gymnastics arena according to claim 1, characterized in that, The temperature sensor (w) is a wireless temperature sensor and is flexibly connected to the mobile test bench (2).

6. The device for testing the temperature rise of frictional force on the surface of a gymnastics arena according to claim 5, characterized in that, The temperature sensor (w) is mounted on a wheel (w1) at its bottom for it to move.

7. The device for testing the temperature rise of frictional force on the surface of a gymnastics arena according to claim 2, characterized in that, The movable test platform (2) has a rectangular frame structure. The pressing protrusion (4) is integrally connected between the front frame edge and the rear frame edge of the movable test platform (2). A left hole (201) is formed between the left side of the pressing protrusion (4) and the left frame edge of the movable test platform (2) for the left side portion of the active friction implementation sheet (3) to pass through from bottom to top. A right hole (202) is formed between the right side of the pressing protrusion (4) and the right frame edge of the movable test platform (2) for the right side portion of the active friction implementation sheet (3) to pass through from bottom to top.

8. The device for testing the temperature rise of frictional force on the surface of a gymnastics arena according to claim 1, characterized in that, A connecting rod (11) is fixed to the lower part of the drive head (1), and a connecting plate (12) is fixed on the movable test platform (2). A front and rear extension pin (13) is passed through and connected between the connecting plate (12) and the connecting rod (11), so that the connecting plate (12) can rotate around the connecting rod (11).

9. The device for testing the temperature rise of frictional force on the surface of a gymnastics arena according to claim 1, characterized in that, The drive frame includes a left column (61) and a right column (62), and a movable crossbeam (63) that can move up and down is connected between the left column (61) and the right column (62). A horizontal slider (630) that can move left and right is installed on the movable crossbeam (63), and the drive head (1) is fixed on the horizontal slider (630).

10. A device for testing the temperature rise of frictional force on the surface of a gymnastics arena according to claim 9, characterized in that, The left column (61) and the right column (62) are respectively equipped with a left longitudinal slider (610) and a right longitudinal slider (620) that can move up and down. The two ends of the moving beam (63) are respectively fixed on the left longitudinal slider (610) and the right longitudinal slider (620). The moving beam (63) is equipped with a transverse motor (64) for the transverse slider (630) to move left and right. The left column (61) or the right column (62) is equipped with a longitudinal motor (65) for the left longitudinal slider (610) and the right longitudinal slider (620) to move up and down.

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