A device to improve the accuracy of the striking point of a kick in Sanda (Chinese kickboxing).

Abstract

This invention provides an auxiliary device for improving the accuracy of striking points in Sanda (Chinese kickboxing). It includes a stainless steel hollow rod and flexible piezoresistive film sensors. A wireless WiFi module is glued to the front end of the stainless steel hollow rod. A stainless steel plug-in cylinder is fixed to the upper outer end of the stainless steel hollow rod by a hand-tightened screw. A wear-resistant rubber cylinder is glued to the outside of the stainless steel plug-in cylinder, and a sandbag is glued to the outside of the wear-resistant rubber cylinder. This design solves the problems of traditional Sanda training, such as the inability of coaches to provide real-time data through verbal instruction, the fixed height of the target being inconvenient to adjust, and the electronic target sensors being mostly concentrated in the center of the target surface, making it difficult to identify striking data in the edge areas. This invention uses an array of multiple flexible piezoresistive film sensors to cover the entire target surface, detecting the precise position and pressure value of the striking point. Furthermore, it can transmit striking data to a mobile APP in real time via a wireless data terminal, supporting offline storage and cloud-based synchronous analysis. The height is also adjustable, making it convenient for different users.

Description

Technical Field

[0001] This utility model is an auxiliary device for improving the accuracy of the striking point of a kick in Sanda (Chinese kickboxing), belonging to the technical field of Sanda auxiliary equipment. Background Technology

[0002] In Sanda (Chinese kickboxing), the roundhouse kick is one of the core offensive techniques, and its accuracy directly affects its effectiveness in actual combat. Traditional training methods mainly rely on verbal instructions from coaches or static striking of fixed targets, and common structures include:

[0003] Fixed targets: consisting of sandbags, soft pads, or hard target plates, fixed on a bracket to provide static targets for hitting; Electronic induction targets: with built-in pressure sensors or accelerometers, providing feedback on the hitting position and force through light or sound.

[0004] However, coaches need to observe and provide verbal feedback when giving verbal instructions, which cannot provide real-time data (such as the location of the hit and the distribution of force). The fixed height of the target is inconvenient to adjust, and the electronic target sensors are mostly concentrated in the center of the target surface, making it difficult to identify the hitting data of the edge area. There is an urgent need for a Sanda whip kick hitting point accuracy aid to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an auxiliary device for improving the accuracy of striking points in Sanda (Chinese kickboxing) to solve the problems mentioned in the background. This invention uses an array of multiple flexible piezoresistive thin-film sensors to cover the entire target surface, detect the precise location and pressure value of the striking point, and transmit the striking data to a mobile app in real time via a wireless data terminal. It supports offline storage and cloud-based synchronous analysis, and is highly adjustable for use by different personnel.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision aid for striking a kick in Sanda (Chinese kickboxing), comprising a stainless steel hollow rod and a flexible piezoresistive film sensor. A wireless WiFi module is adhered to the front end of the stainless steel hollow rod. A stainless steel insert cylinder is fixed to the upper outer end of the stainless steel hollow rod by a hand-tightened screw. A wear-resistant rubber cylinder is adhered to the outside of the stainless steel insert cylinder. A sandbag is adhered to the outside of the wear-resistant rubber cylinder. A cylindrical EVA foam block is adhered to the outside of the sandbag. Semi-circular EVA foam blocks are symmetrically adhered to the upper and lower ends of the sandbag. An embedding groove is formed at the upper end of each semi-circular EVA foam block. An elastic diaphragm is adhered to the inner side of the embedding groove. Multiple flexible piezoresistive film sensors are attached to the outer surface of the elastic diaphragm, and all of the multiple flexible piezoresistive film sensors are attached to the inner side of the embedding groove.

[0007] Furthermore, a flange seat is horizontally welded to the lower end of the stainless steel hollow rod, and the flange seat is installed on the external ground by multiple high-strength bolts.

[0008] Furthermore, a power connector is installed at the lower end of the wireless WiFi module, and a wire is inserted at the power connector to connect to an external power source. The wireless WiFi module is connected to an external mobile phone APP via a wireless signal, and the upper end of the wireless WiFi module is connected to multiple flexible piezoresistive film sensors via a data cable.

[0009] Furthermore, a metal positioning rod is longitudinally welded inside the stainless steel plug-in cylinder, and the lower end of the metal positioning rod is inserted into the stainless steel hollow rod.

[0010] Furthermore, each of the two semi-circular EVA foam blocks is wrapped with an elastic fabric wrapping layer.

[0011] Furthermore, the upper elastic fabric wrapping layer and the middle elastic fabric wrapping layer are zipped together.

[0012] The beneficial effects of this utility model are as follows: This utility model provides an auxiliary device for improving the accuracy of striking points in kicking techniques. It incorporates a wireless WiFi module, a stainless steel hollow rod, a stainless steel plug-in cylinder, a metal positioning rod, a hand-tightening screw, a semi-circular EVA foam block, a cylindrical EVA foam block, an elastic fabric wrapping layer, a flexible piezoresistive film sensor, and an elastic diaphragm. The device has a reasonable structure and can array multiple flexible piezoresistive film sensors to cover the entire target surface, detecting the precise position and pressure value of the striking point. Furthermore, it can transmit striking data to a mobile app in real time via a wireless data terminal, supporting offline storage and cloud-based synchronous analysis. The device is also height-adjustable, making it convenient for different users to adjust and use, and is highly practical. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a structural schematic diagram of a Sanda whip kick striking point accuracy auxiliary device according to the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of a sanda whip kick striking point accuracy auxiliary device according to the present invention;

[0016] Figure 3 This is a schematic diagram of the upper structure of the elastic fabric wrapping layer of a kicking device for improving the accuracy of striking points in Sanda (Chinese kickboxing).

[0017] In the diagram: 1-Flange seat, 2-High-strength bolt, 3-Wireless WiFi module, 4-Power connector, 5-Stainless steel hollow rod, 6-Stainless steel plug-in sleeve, 7-Metal positioning rod, 8-Hand-tightening screw, 9-Wear-resistant rubber sleeve, 10-Sandbag, 11-Semi-circular EVA foam block, 12-Cylindrical EVA foam block, 13-Elastic fabric wrapping layer, 14-Embedded groove, 15-Flexible piezoresistive film sensor, 16-Elastic diaphragm. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1-3 This utility model provides a technical solution: a sanda (Chinese kicking) striking point accuracy auxiliary device, including a stainless steel hollow rod 5 and a flexible piezoresistive film sensor 15. A wireless WiFi module 3 is glued to the front end of the stainless steel hollow rod 5. A stainless steel plug-in tube 6 is fixed to the upper part of the stainless steel hollow rod 5 by a hand-tightening screw 8. A wear-resistant rubber tube 9 is glued to the outside of the stainless steel plug-in tube 6. A sandbag 10 is glued to the outside of the wear-resistant rubber tube 9. A cylindrical EVA foam block 12 is glued to the outside of the sandbag 10. Semi-circular... EVA foam block 11, the upper end of the semi-circular EVA foam block 11 has an embedding groove 14, an elastic diaphragm 16 is glued to the inner side of the embedding groove 14, and multiple flexible piezoresistive thin film sensors 15 are attached to the outer surface of the elastic diaphragm 16, and all the multiple flexible piezoresistive thin film sensors 15 are attached to the inner side of the embedding groove 14. This design solves the problems in the original Sanda sports where coaches cannot provide real-time data through verbal guidance, the fixed target height is fixed and inconvenient to adjust, and the electronic target sensors are mostly concentrated in the center of the target surface, making it difficult to identify the hitting data of the edge area.

[0020] As the first embodiment of this utility model: A flange seat 1 is horizontally welded to the lower end of the stainless steel hollow rod 5. The flange seat 1 is installed on the external ground by multiple high-strength bolts 2. By adding the flange seat 1 and installing it on the external ground by multiple high-strength bolts 2, the stainless steel hollow rod 5 can be installed and fixed. A power connector 4 is installed at the lower end of the wireless WiFi module 3, and a wire is inserted at the power connector 4 to connect to an external power source. The wireless WiFi module 3 is connected to an external mobile phone APP via a wireless signal. The upper end of the wireless WiFi module 3 is connected to multiple flexible piezoresistive film sensors 15 via a data cable. The multiple flexible piezoresistive film sensors 15 added can provide the striking position coordinates (X, Y) and force value (0-100N) with an error of <5%. Moreover, the fighter can more intuitively know the whip kick striking point data through the external mobile phone APP. A metal positioning rod 7 is longitudinally welded inside the stainless steel plug-in tube 6. The lower end of the metal positioning rod 7 is inserted into the stainless steel hollow rod 5. By adding the metal positioning rod 7 and inserting its lower end into the stainless steel hollow rod 5, the connection strength between the stainless steel hollow rod 5 and the stainless steel plug-in tube 6 can be improved. Two semi-circular EVA foam blocks 11 are each covered with an elastic fabric wrapping layer 13. The added elastic fabric wrapping layer 13 can shield and protect the two semi-circular EVA foam blocks 11. The upper elastic fabric wrapping layer 13 and the middle elastic fabric wrapping layer 13 are connected together by a zipper. The upper elastic fabric wrapping layer 13 and the middle elastic fabric wrapping layer 13 can be opened to install the elastic diaphragm 16 and multiple flexible piezoresistive thin film sensors 15. The two semi-circular EVA foam blocks 11 are both high-density EVA foam blocks, which reduces the reaction force during impact, protects the user's joints, and extends the life of the target surface.

[0021] As a second embodiment of this utility model: Hold the elastic fabric wrapping layer 13, loosen the two hand screws 8, and adjust the height of the stainless steel plug-in cylinder 6 at the upper end of the stainless steel hollow rod 5. After adjustment, tighten the two hand screws 8 again, and you can start practicing the whip kick in Sanda. During this process, the elastic fabric wrapping layer 13 is subjected to force and transmitted to the cylindrical EVA foam block 12. The cylindrical EVA foam block 12 is transmitted to the flexible piezoresistive film sensor 15 under the action of the striking force. The flexible piezoresistive film sensor 15 directly contacts the area to capture the pressure distribution and transmits the whip kick striking point data to an external mobile phone APP through the wireless WiFi module 3, so that Sanda practitioners can more intuitively know the whip kick striking point data through an external mobile phone APP.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for improving the accuracy of a kicking point in Sanda (Chinese kickboxing), comprising a stainless steel hollow rod (5) and a flexible piezoresistive film sensor (15), characterized in that: The stainless steel hollow rod (5) has a wireless WiFi module (3) glued to its front end. The upper part of the stainless steel hollow rod (5) is fixed with a stainless steel plug tube (6) by a hand screw (8). The stainless steel plug tube (6) has a wear-resistant rubber tube (9) glued to its exterior. The wear-resistant rubber tube (9) has a sandbag (10) glued to its exterior. The sandbag (10) has a cylindrical EVA foam block (12) glued to its exterior. The upper and lower ends of the sandbag (10) have semi-circular EVA foam blocks (11) symmetrically glued to their upper and lower ends. The upper end of the semi-circular EVA foam block (11) has an embedded groove (14). The inner side of the embedded groove (14) has an elastic diaphragm (16) glued to its interior. The outer surface of the elastic diaphragm (16) is covered with multiple flexible piezoresistive thin film sensors (15), and all of the multiple flexible piezoresistive thin film sensors (15) are attached to the inner side of the embedded groove (14).

2. The auxiliary device for improving the accuracy of striking point in Sanda whip kicks according to claim 1, characterized in that: The lower end of the stainless steel hollow rod (5) is horizontally welded with a flange seat (1), and the flange seat (1) is installed on the external ground by a plurality of high-strength bolts (2).

3. The auxiliary device for improving the accuracy of striking point in Sanda whip kicks according to claim 1, characterized in that: The lower end of the wireless WiFi module (3) is equipped with a power connector (4), and a wire is inserted at the power connector (4) to connect to an external power source. The wireless WiFi module (3) is connected to an external mobile phone APP via a wireless signal. The upper end of the wireless WiFi module (3) is connected to multiple flexible piezoresistive film sensors (15) via a data cable.

4. The auxiliary device for improving the accuracy of striking point in Sanda whip kicks according to claim 1, characterized in that: A metal positioning rod (7) is longitudinally welded inside the stainless steel plug tube (6), and the lower end of the metal positioning rod (7) is inserted into the stainless steel hollow rod (5).

5. The auxiliary device for improving the accuracy of striking point in Sanda whip kicks according to claim 1, characterized in that: The two semi-circular EVA foam blocks (11) are respectively wrapped with an elastic fabric wrapping layer (13).

6. The auxiliary device for improving the accuracy of striking point in Sanda whip kicks according to claim 5, characterized in that: The upper elastic fabric wrapping layer (13) and the middle elastic fabric wrapping layer (13) are zipped together.

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