Detachable impact-resistant high-throwing ball

Abstract

The utility model discloses a detachable impact-resistant high-throwing ball which comprises a foam shell, a threaded middle layer, a silica gel inner layer and a chip element. The foam shell and the silica gel inner layer have elasticity, have double damping effects and can resist strong external impact, so that the high-throwing ball has very strong impact resistance, normal operation of internal chip components is ensured, and the high-throwing ball can be used in various scenes. The threaded middle layer is connected through threads, the silica gel inner layer is clamped in the interior, the effect of stabilizing the structure is achieved, disassembly and assembly at any time can be achieved, production and assembly are easy, and disassembly, replacement and maintenance are easy.

Description

Technical Field

[0001] The utility model relates to the field of sports measuring devices, in particular to a detachable and impact-resistant high-throwing ball with a protected built-in circuit board. Background Art

[0002] The height of a ball throw refers to the height of the highest point of the thrown ball in a parabolic motion relative to the throwing position. By measuring the height of the ball throw, the throwing heights of athletes can be compared, and a new competitive event can be developed as a mass sports and national fitness exercise. The commonly used method of measuring height is to measure based on a ruler. In order to determine the highest point of the sports ball, it can be combined with photography technology. Since the height of the ball throw ranges from a few meters to more than ten meters, the measurement device required for this method is complex, and multiple cameras need to be set up at the expected height for photography and recording. Since the position range of the ball thrower is difficult to control, the accuracy of the measurement is difficult to grasp, and the efficiency is low, so this sport is difficult to carry out.

[0003] With the development of detection and measurement technology, motion measurement devices equipped with motion detection sensors have gradually become a low-cost and simple measurement method. At present, the common balls with circuit boards inside can be used for entertainment and sports, with sound, music, flash, sound and light, vibration, measurement functions, can be thrown high and prevent collision, and its built-in circuit board is solidified inside the ball, cannot be disassembled, cannot be replaced, and is a disposable product. There is also a kind of such device that is detachable, for example, utility model patent CN218553061U discloses a high-altitude self-test ball, which is mainly composed of a sphere, a circuit board, a circuit board bracket, a lithium battery, a filling block and a silicone seal, and the outer surface of the sphere contains an annular concave belt surrounding the sphere, and the silicone seal is set on the annular concave belt and limited to the filling block, and the filling block abuts the spherical circuit board bracket to achieve fixation. Although the structure of the high-altitude self-test ball is firm and can resist impact, its structural design is relatively complex, with many parts, complicated assembly, high production cost, and inconvenient disassembly and maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a detachable anti-impact high throwing ball for protecting a built-in circuit board, with an optimized structural design, which can be easily assembled and disassembled while ensuring the same anti-impact ability, and can be easily disassembled to replace batteries, etc., which is conducive to maintenance and reduces the production cost by reducing the number of parts.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A detachable anti-collision high throwing ball comprises a foam outer shell (1), a threaded middle layer (2), a silicone inner layer (3) and a chip element (4); wherein the foam outer shell (1) comprises two hemispherical foam shells, the inner side of the foam outer shell (1) being bonded to the outer side of the threaded middle layer (2); the threaded middle layer (2) comprising two hemispherical shells, the large circles of the two hemispherical shells respectively comprising mutually matching male threads (21) and female threads (22), the two hemispherical shells being assembled into a spherical whole by screwing the male threads (21) and the female threads (22); the silicone inner layer (3) being located inside the threaded middle layer (2) and clamped by the inner side of the threaded middle layer (2), the silicone inner layer (3) comprising two mutually butted hemispherical parts; the chip element (4) being fixed inside the two hemispherical parts of the silicone inner layer (3), the chip element (4) comprising a circuit board and a lithium battery mainly composed of a microprocessor, a six-axis sensor, a charging management circuit and a Bluetooth communication module.

[0007] Furthermore, the foam shell (1) and the threaded intermediate layer (2) are bonded together by an adhesive.

[0008] Furthermore, a portion of the edges of the two hemispherical parts of the silicone inner layer (3) are connected to each other, and the other parts of the edges are point-bonded using an adhesive.

[0009] Furthermore, the chip component (4) is clamped in the internal clamping groove of the silicone inner layer (3), and the four sides of the chip component (4) are fixed with screws.

[0010] Furthermore, the lithium battery on the chip component (4) is square and is adhered to the back side of the circuit board of the chip component (4).

[0011] Furthermore, the six-axis sensor includes a three-axis gravity acceleration sensor and a three-axis gyroscope.

[0012] The advantages of the detachable anti-impact high throwing ball of the utility model are:

[0013] 1. The foam shell and silicone inner layer of the high-throwing ball are both elastic and have dual shock-absorbing effects. They can resist strong external impacts, making the high-throwing ball highly resistant to impact and ensuring the normal operation of the internal chip components, and can be used in a variety of scenarios.

[0014] 2. The threaded middle layer is connected by threads to clamp the silicone inner layer to the inside, which not only stabilizes the structure, but also can be disassembled and assembled at any time, making it easy to produce and assemble, as well as easy to disassemble, replace and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model discloses a detachable anti-collision high ball structure.

[0016] Figure 2A-2BIt is a structural diagram of the threaded middle layer of the utility model.

[0017] Description of reference numerals:

[0018] 1- Foam shell;

[0019] 2-thread middle layer;

[0020] 21-male thread;

[0021] 22-female thread;

[0022] 3-Silica gel inner layer;

[0023] 4-Chip components. DETAILED DESCRIPTION

[0024] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below and described in detail with reference to the accompanying drawings.

[0025] This embodiment discloses a detachable anti-impact high throwing ball, such as Figure 1 The structure shown in the figure comprises a foam shell 1, a threaded intermediate layer 2, a silicone inner layer 3 and a chip element 4. The foam shell 1 comprises two hemispherical foam shells, the inner side of which is bonded to the outer side of the threaded intermediate layer 2 by an adhesive. The threaded intermediate layer 2 comprises two hemispherical shells, the great circles of which (i.e. the edges at the maximum diameter) respectively contain male threads 21 and female threads 22 that fit each other, as shown in FIG. Figure 2A-2B As shown, the two hemispherical shells are assembled into a spherical whole by screwing the male thread 21 and the female thread 22. The silicone inner layer 3 is located inside the threaded middle layer 2 and is clamped by the inner side of the threaded middle layer 2. The silicone inner layer 3 includes two hemispherical parts that are connected to each other. A part of the edge of the two hemispherical parts of the silicone inner layer 3 is connected to each other, and the other parts of the edge are point-bonded with adhesive. The chip component 4 is fixed inside the two hemispherical parts of the silicone inner layer 3 and is clamped in the internal card slot of the silicone inner layer 3. The four sides of the chip component 4 are fixed with screws. The chip component 4 includes a circuit board and a lithium battery mainly composed of a microprocessor, a six-axis sensor (including a three-axis gravity acceleration sensor and a three-axis gyroscope), a charging management circuit and a Bluetooth communication module. The lithium battery is square and is attached to the back of the circuit board of the chip component 4.

[0026] This detachable anti-collision high-throwing ball uses a low-power detection mode, which does not require frequent manual power on and off, improving the user experience. When the six-axis sensor detects long-term stillness, it automatically enters a low-power detection state. When it detects that the acceleration value exceeds the threshold, it re-enters the detection state. When it detects that the vector sum of the three-axis acceleration sensor is less than the threshold of gravity acceleration only, the timing starts. When it detects that the three-axis acceleration vector sum exceeds the collision threshold in the gravity acceleration only state, the timing is stopped and the time is converted into height. The height value is transmitted to the mobile phone APP via Bluetooth for display and data analysis. The three-axis gyroscope of this detachable anti-collision high-throwing ball can offset the centripetal acceleration value caused by rotation during the detection process, thereby improving the sensor's detection accuracy for the gravity acceleration only state and the ball catching action.

[0027] The working principle of this detachable anti-collision high-throwing ball is as follows: the six-axis sensor includes a three-axis gravity acceleration sensor and a three-axis gyroscope, which are used to measure the motion state of the high-throwing ball, including acceleration, angle offset, moving trajectory and spatial position. The gravity acceleration sensor in the ball is used as a sensing device for throwing and catching the ball. When throwing the ball, the moment the high-throwing ball leaves the hand of the test person, the force of the hand disappears, and the ball enters a completely weightless state. The acceleration in the ball will theoretically become 0, and the ball enters a state with only gravity acceleration. The reading of the acceleration sensor in the ball is gravity acceleration. Once the catcher touches the ball, the collision between the hand and the ball will produce a large acceleration. The timer is triggered when the ball is thrown, and the timer stops when the ball is caught. According to the relationship between time and height, the time signal is output as a height value by using a circuit, and the measured data is processed by a microprocessor to achieve the purpose of measuring height. Considering that the acceleration sensor is not installed at the absolute center of the sphere, the rotation of the sphere will produce centripetal acceleration, which will interfere with the detection of the opponent's force and the state of weightlessness. At this time, the centripetal acceleration generated by the rotation is calculated through the angular velocity detected by the gyroscope, and vector superposition is performed with the original three-axis acceleration sensor to obtain an acceleration reading close to the ideal state.

[0028] The advantages of this detachable anti-impact high-throwing ball are: the foam shell and the silicone inner layer of the high-throwing ball are both elastic, have a dual shock-absorbing effect, can resist strong external impact, make the high-throwing ball have strong anti-impact ability, ensure the normal operation of the internal chip components, and can be used in a variety of scenarios. The threaded middle layer is connected by threads to clamp the silicone inner layer to the inside, which not only plays a role in stabilizing the structure, but also can be disassembled and assembled at any time, is easy to produce and assemble, and is easy to disassemble, replace and repair.

[0029] Although the utility model has been disclosed as above in the form of embodiments, it is not intended to limit the utility model. Appropriate modifications or equivalent substitutions of the technical solutions of the utility model made by ordinary technicians in the field should be included in the protection scope of the utility model. The protection scope of the utility model shall be based on that defined in the claims.

Claims

1. A detachable anti-impact high ball, characterized in that: The invention comprises a foam outer shell (1), a threaded middle layer (2), a silicone inner layer (3) and a chip element (4); wherein the foam outer shell (1) comprises two hemispherical foam shells, the inner side of the foam outer shell (1) is bonded to the outer side of the threaded middle layer (2); the threaded middle layer (2) comprises two hemispherical shells, the large circles of the two hemispherical shells respectively contain male threads (21) and female threads (22) that match each other, and the two hemispherical shells are assembled into a spherical whole by screwing the male threads (21) and the female threads (22); the silicone inner layer (3) is located inside the threaded middle layer (2) and is clamped by the inner side of the threaded middle layer (2), and the silicone inner layer (3) comprises two hemispherical parts that are butted against each other; the chip element (4) is fixed inside the two hemispherical parts of the silicone inner layer (3), and the chip element (4) comprises a circuit board and a lithium battery mainly composed of a microprocessor, a six-axis sensor, a charging management circuit and a Bluetooth communication module.

2. The detachable anti-impact high throwing ball as claimed in claim 1, characterized in that: The foam shell (1) and the threaded middle layer (2) are bonded together by an adhesive.

3. The detachable anti-impact high throwing ball as claimed in claim 1, characterized in that: A portion of the edges of the two hemispherical parts of the silicone inner layer (3) are connected to each other, and the other parts of the edges are point-bonded by using an adhesive.

4. The detachable anti-impact high throwing ball as claimed in claim 1, characterized in that: The chip component (4) is clamped in the internal clamping groove of the silicone inner layer (3), and the four sides of the chip component (4) are fixed with screws.

5. The detachable anti-impact high throwing ball as claimed in claim 1, characterized in that: The lithium battery on the chip component (4) is square and is adhered to the back of the circuit board of the chip component (4).

6. The detachable anti-impact high throwing ball as claimed in claim 1, characterized in that: The six-axis sensor includes a three-axis gravity acceleration sensor and a three-axis gyroscope.

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