Flagpole turn flag crossing sensing device

Abstract

The utility model relates to the technical fields of sign pole turn back flag is especially related to sign pole turn back flag pole passing induction device, including base, the bottom of base is connected with the bottom disc, the bottom of bottom disc is connected with the mounting nail, the top of base is connected with the sign pole, the surface of sign pole is installed with the reflection patch, the surface of sign pole is provided with lifting device, the side of sign pole is provided with induction device, the top of lifting device is provided with flagpole, the surface of flagpole is connected with the banner. The sign pole turn back flag pole passing induction device, through the setting of induction device, can utilize infrared probe and gear drive structure, realizes the multi -angle accurate scanning monitoring of the athlete's turn back action, effectively avoids the missed judgment misjudgment, simultaneously, combines data processing and real -time display function, not only can instant feedback pole passing data auxiliary training adjustment, also can satisfy the multi -scene demand of sports events, physical ability test etc, greatly promotes the functionality and practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of signpost turning flag technology, and in particular to a signpost turning flag overpass sensing device. Background Technology

[0002] Turnaround flags are widely used in sports training and competitions, often placed in various shuttle run events such as the 30x2 serpentine run and shuttle races, to clearly indicate the athletes' turning positions. In the past, traditional turnaround flags mainly relied on manual observation to see if athletes correctly turned around the poles, which was not only labor-intensive but also prone to human error affecting the accuracy of results. It was difficult to record data efficiently and accurately in large-scale training or competitions. At the same time, some existing simple sensing devices have significantly reduced sensing effectiveness in complex environments, such as strong light, sandstorms, and other adverse weather conditions, resulting in missed or false judgments. They cannot meet the needs of high-precision monitoring of athletes' turning movements. Therefore, a pole-passing sensing device for turnaround flags is particularly needed.

[0003] Chinese patent CN107060475B, published on July 28, 2023, discloses an electric flagpole. By setting a fixing sleeve, the connection between the pole and the base can be made more stable, enhancing the wind resistance of the pole and making the electric flagpole less prone to tipping and deformation. At the same time, the device has a simple structure, low cost, and good practicality. However, this flagpole only focuses on raising and lowering the flag, with a single function. It cannot accurately monitor the athlete's turning movements and provide relevant data support, thus limiting its application scenarios and making it difficult to meet the needs of diverse scenarios such as sports training, competitions, and physical fitness testing. Utility Model Content

[0004] The purpose of this invention is to provide a signpost return flag crossing sensing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a signpost return flag passing-through sensing device, comprising a base, a chassis connected to the bottom of the base, mounting nails connected to the bottom of the chassis, a signpost connected to the top of the base, a reflective patch installed on the surface of the signpost, a lifting device provided on the surface of the signpost, a sensing device provided on the side of the signpost, a flagpole provided at the top of the lifting device, and a flag attached to the surface of the flagpole;

[0006] The sensing device includes a support plate connected to the upper side of the sign post. A data processing box is connected above the support plate, and a drive box is connected above the data processing box. A motor is installed inside the drive box, and a drive shaft is connected to the output end of the motor. A rotating gear is connected to the surface of the drive shaft. A bearing is connected in the middle inside the drive box, and a half gear is connected to the surface of the bearing. The rotating gear and the half gear mesh with each other. A rotating seat is connected to the outer end of the bearing, and a sensor is installed above the rotating seat. An infrared probe is installed on the surface of the sensor. A display screen is connected to the side of the sign post.

[0007] Preferably, multiple identical sets of mounting nails are provided on the bottom of the chassis, and each set of mounting nails is distributed in a circular pattern with equal spacing around the center of the chassis.

[0008] Preferably, multiple sets of reflective patches are provided on the surface of the signpost, and the reflective patches in each set are distributed at equal intervals.

[0009] Preferably, the lifting device includes a housing, which is installed on the side of the sign post. A handwheel is connected to the outer side of the housing, and a rotating shaft is connected to the inner end of the handwheel. A ratchet is connected to the surface of the rotating shaft. A lifting groove is provided inside the sign post, and a lifting rod is slidably connected inside the lifting groove. A toothed groove is provided on the side of the lifting rod, and the ratchet meshes with the toothed groove. Limiting blocks are connected to both sides of the bottom of the lifting rod, and a limiting groove is provided on the inner side of the lifting groove.

[0010] Preferably, the lifting rod forms a sliding limiting structure inside the lifting groove via a limiting block, and the outer wall dimension of the limiting block matches the inner wall dimension of the limiting groove.

[0011] Preferably, the ratio of the number of teeth of the rotating gear to the number of teeth of the half gear is 1:2, and the motor drives the sensor to reciprocate within the range of 0-90° through gear transmission.

[0012] Preferably, the data processing box integrates a wireless transmission module and a storage unit, and the data processing box is connected to the sensor and the display screen by wires.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the marker pole turning flag passing pole sensing device, through the setting of the sensing device, can use infrared probes and gear transmission structure to realize multi-angle accurate scanning and monitoring of the athlete's turning action, effectively avoiding missed judgments and misjudgments. At the same time, combined with data processing and real-time display functions, it can not only provide instant feedback on the passing pole data to assist in training adjustments, but also meet the needs of multiple scenarios such as sports events and physical fitness tests, greatly improving the functionality and practicality of the device. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the lifting device structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the sensing device structure of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Base; 2. Chassis; 3. Mounting pin; 4. Signpost; 5. Reflective patch; 6. Lifting device; 601. Housing; 602. Handwheel; 603. Rotating shaft; 604. Ratchet; 605. Lifting groove; 606. Lifting rod; 607. Gear groove; 608. Limiting block; 609. Limiting groove; 7. Sensing device; 701. Support plate; 702. Data processing box; 703. Drive box; 704. Motor; 705. Drive shaft; 706. Rotary gear; 707. Bearing; 708. Half gear; 709. Rotating seat; 710. Sensor; 711. Infrared detector; 712. Display screen; 8. Flagpole; 9. Flag. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a signpost return flag passing over the signpost sensing device, including a base 1, a base plate 2 connected to the bottom of the base 1, a mounting nail 3 connected to the bottom of the base plate 2, a signpost 4 connected to the top of the base 1, a reflective patch 5 installed on the surface of the signpost 4, a lifting device 6 provided on the surface of the signpost 4, a sensing device 7 provided on the side of the signpost 4, a flagpole 8 provided at the top of the lifting device 6, and a flag 9 connected to the surface of the flagpole 8;

[0021] The sensing device 7 includes a support plate 701, which is connected to the upper side of the sign pole 4. A data processing box 702 is connected above the support plate 701, and a drive box 703 is connected above the data processing box 702. A motor 704 is installed inside the drive box 703, and a drive shaft 705 is connected to the output end of the motor 704. A rotating gear 706 is connected to the surface of the drive shaft 705. A bearing 707 is connected in the middle inside the drive box 703, and a half gear 708 is connected to the surface of the bearing 707. The rotating gear 706 and the half gear 708 are connected to each other. The bearing 707 is meshed with a rotating seat 709 connected to its outer end. A sensor 710 is mounted on top of the rotating seat 709, and an infrared detector 711 is mounted on the surface of the sensor 710. A display screen 712 is connected to the side of the marker rod 4. Through the sensor 7, the motor 704 is started as a power source, and its output drives the transmission shaft 705 to rotate. The rotating gear 706 on the surface of the transmission shaft 705 rotates synchronously. Because the rotating gear 706 meshes with the half-gear 708 on the surface of the bearing 707, and the number of teeth of the two have a specific ratio, the rotating gear 706... The rotation of 06 drives the half gear 708 to reciprocate around the axis of the bearing 707. The oscillation of the half gear 708 is transmitted to the outer rotating seat 709 through the bearing 707, causing the rotating seat 709 to drive the sensor 710 above to adjust its angle synchronously. This ensures that the infrared probe 711 on the surface of the sensor 710 can reciprocate within a preset range, expanding the sensing coverage area. When the athlete completes the turning motion after passing the marker pole 4, the infrared probe 711 will detect the human body blocking the infrared signal, and then generate a sensing signal and transmit it to the data processing box 702. The data processing box 702 analyzes and processes the received signals, converting them into specific data including the time to clear the bar and the effectiveness of the action. This data is recorded in the internal storage unit and transmitted in real time to the display screen 712 on the side of the marker pole 4 for intuitive display. Throughout the process, the precise coordination of the gear transmission ensures the stable swing of the sensor 710. The rapid response of the infrared probe 711 and the efficient calculation of the data processing box 702 enable real-time and accurate monitoring and recording of the athlete's bar-clearing action, providing reliable quantitative data support for training or competitions.

[0022] Furthermore, multiple sets of mounting nails 3 are provided at the bottom of the chassis 2, and each set of mounting nails 3 is distributed in a circular pattern with equal spacing around the center of the chassis 2. Through the setting of mounting nails 3, multiple sets of circularly distributed mounting nails 3 can be inserted into the ground from multiple angles, which greatly improves the connection strength between the base and the ground, disperses the external force on the marker pole, effectively prevents the device from tilting or falling over during use, and ensures the stability and safety of the overall structure, especially suitable for complex outdoor environments.

[0023] Furthermore, multiple sets of reflective patches 5 are provided on the surface of the marker pole 4, and each set of reflective patches 5 is evenly spaced. Through the setting of reflective patches 5, multiple sets of evenly spaced reflective patches 5 can significantly enhance the visual recognition of the marker pole 4 by reflecting light when the light is dim, helping athletes to quickly identify the turning point and reduce errors in navigating the pole due to poor visibility. At the same time, it is convenient for coaches or referees to observe from a distance whether athletes have correctly cleared the pole, thereby improving the safety and accuracy of training and competitions.

[0024] Furthermore, the lifting device 6 includes a housing 601, which is installed on the side of the signpost 4. A handwheel 602 is connected to the outer side of the housing 601, and a rotating shaft 603 is connected to the inner end of the handwheel 602. A ratchet 604 is connected to the surface of the rotating shaft 603. A lifting groove 605 is provided inside the signpost 4, and a lifting rod 606 is slidably connected inside the lifting groove 605. A toothed groove 607 is provided on the side of the lifting rod 606, and the ratchet 604 meshes with the toothed groove 607. Limiting blocks 608 are connected to both sides of the bottom of the lifting rod 606, and a limiting groove 609 is provided on the inner side of the lifting groove 605. With the lifting device 6, when the height of the flagpole 8 needs to be adjusted, the operator rotates the handwheel 602 on the outer side of the housing 601. The handwheel 602 drives the rotating shaft 603 at the inner end to rotate synchronously, and the ratchet 604 on the surface of the rotating shaft 603 rotates accordingly. The ratchet 604 meshes with the toothed groove 607 on the side of the lifting rod 606. The rotation of the ratchet 604 drives the lifting rod 606 to move linearly in the lifting groove 605 inside the flagpole 4. At this time, the limiting blocks 608 on both sides of the bottom of the lifting rod 606 slide synchronously in the limiting groove 609, ensuring that the lifting rod 606 rises and falls smoothly along the predetermined trajectory, avoiding deviation or shaking. When the flagpole 8 is adjusted to the required height, the one-way locking function of the ratchet 604 will automatically lock the current position to prevent the lifting rod 606 from falling back due to external force. If it is necessary to lower the height of the flagpole 8, the operator needs to rotate the handwheel 602 in the opposite direction to release the ratchet 604 from the locked state, and drive the lifting rod 606 to slide down along the lifting groove 605. Through this structural design, the lifting device 6 realizes the manual adjustment and stable locking of the height of the flagpole 8, meeting the flexible needs of flag display height in different usage scenarios.

[0025] Furthermore, the lifting rod 606 forms a sliding limiting structure inside the lifting groove 605 via the limiting block 608 and the limiting groove 609. The outer wall size of the limiting block 608 matches the inner wall size of the limiting groove 609. Through the setting of the limiting block 608 and the limiting groove 609, the precise matching size ensures that the lifting rod 606 can only move in a straight line along the trajectory of the limiting groove 609 during the lifting process, effectively limiting its radial displacement and rotation, avoiding jamming or tilting caused by uneven force, and ensuring that the flagpole 8 is lifted smoothly and stably. At the same time, this structure can disperse the lateral force generated by the swinging of the flag, enhance the impact resistance of the lifting device, and extend its service life.

[0026] Furthermore, the ratio of the number of teeth of the rotating gear 706 to the number of teeth of the half gear 708 is 1:2. The motor 704 drives the sensor 710 to reciprocate within the range of 0-90° through gear transmission. Through the setting of the rotating gear 706 and the half gear 708, the specific tooth ratio and meshing transmission mode make the continuous rotational motion of the motor 704 accurately converted into the reciprocating oscillation of the sensor 710 within the range of 0-90°, realizing the periodic scanning and monitoring of the fan-shaped area in front of the sign post. This design not only expands the sensing range of the infrared probe 711, but also avoids the energy waste caused by omnidirectional rotation, and optimizes the working efficiency and energy consumption ratio of the sensing device.

[0027] Furthermore, the data processing box 702 integrates a wireless transmission module and a storage unit. The data processing box 702 is connected to the sensor 710 and the display screen 712 by wires. Through the setup of the data processing box 702, the sensor 710 and the display screen 712, the three form a complete data acquisition-processing-display link. The sensor 710 captures the athlete's bar clearance signal in real time. The data processing box 702 filters, analyzes and stores the signal, and then synchronizes it to an external terminal through the wireless transmission module. At the same time, it drives the display screen 712 to intuitively display data such as bar clearance time and speed, providing data support for real-time feedback on training effects and adjustment of tactics, thereby improving the scientific level of training and competition.

[0028] Working Principle: During operation of the entire flagpole turning flag passing sensing device, all components work closely together to accurately monitor and provide data feedback on the athlete's turning movements. During installation, the base 1 is firmly anchored by mounting nails 3 evenly spaced around the bottom of the chassis 2, ensuring the device will not shift or tilt due to external forces during use, thus laying a stable foundation for subsequent work. The reflective patch 5 on the surface of the flagpole 4 continuously reflects light in low-light conditions, allowing athletes and referees to clearly identify the flagpole's position and ensuring the accuracy of the turning movement. After training or competition begins, if the flag height needs adjustment, the handwheel 602 of the lifting device 6 can be operated. Utilizing the meshing of the ratchet 604 and the toothed groove 607, as well as the sliding limiting structure of the limiting block 608 and the limiting groove 609, the flagpole 8 can be smoothly and accurately adjusted in height. Once the designated height is reached, the ratchet 604 automatically locks. Simultaneously, the motor 704 in the sensing device 7 continuously operates, driving the sensor 710 through a specific gear ratio transmission between the rotating gear 706 and the half-gear 708. The infrared sensor 711 rotates back and forth within an angle range of 0-90°, cyclically scanning the area in front of the marker pole. When an athlete performs a shuttle run and passes the marker pole 4, their body blocks the infrared signal emitted by the infrared sensor 711. The sensor 710 quickly converts the signal change into an electrical signal and transmits it to the data processing box 702. The data processing box 702 immediately filters and analyzes the signal using algorithms, extracting key data such as the athlete's pole-crossing time and speed. On one hand, the data is stored in the internal storage unit for subsequent review and analysis; on the other hand, the data is transmitted to the display screen 712 via wires for real-time display. Simultaneously, the data is transmitted wirelessly to the coach's mobile terminal or the event management system. Throughout the process, all components work together, from the stable fixation of the device and the clear identification of the marker pole, to the flexible adjustment of the flag height, the accurate sensing of the athlete's pole-crossing action, and the data processing feedback. This achieves efficient and scientific monitoring of shuttle run training and events, thus completing the usage process of the marker pole shuttle flag crossing sensing device.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A marker pole turning flag overpass sensing device, comprising a base (1), characterized in that: The bottom of the base (1) is connected to the chassis (2), the bottom of the chassis (2) is connected to the mounting nail (3), the top of the base (1) is connected to the sign pole (4), the surface of the sign pole (4) is equipped with a reflective patch (5), the surface of the sign pole (4) is provided with a lifting device (6), the side of the sign pole (4) is provided with a sensing device (7), the top of the lifting device (6) is provided with a flagpole (8), and the surface of the flagpole (8) is connected with a flag (9). The sensing device (7) includes a support plate (701) connected to the upper side of the sign post (4). A data processing box (702) is connected above the support plate (701), and a drive box (703) is connected above the data processing box (702). A motor (704) is installed inside the drive box (703), and a drive shaft (705) is connected to the output end of the motor (704). A rotating gear (706) is connected to the surface of the drive shaft (705). The drive box (703) has a bearing (707) connected in the middle inside. A half gear (708) is connected to the surface of the bearing (707). The rotating gear (706) meshes with the half gear (708). A rotating seat (709) is connected to the outer end of the bearing (707). A sensor (710) is installed above the rotating seat (709). An infrared probe (711) is installed on the surface of the sensor (710). A display screen (712) is connected to the side of the sign pole (4).

2. The signpost turning flag overpass sensing device according to claim 1, characterized in that: The mounting pins (3) are arranged in multiple identical sets at the bottom of the chassis (2), and each set of mounting pins (3) is distributed in a circular pattern with equal spacing around the center of the chassis (2).

3. The signpost turning flag overpass sensing device according to claim 1, characterized in that: The reflective patches (5) are arranged in multiple sets on the surface of the signpost (4), and each set of reflective patches (5) is distributed at equal intervals.

4. The signpost turning flag overpass sensing device according to claim 1, characterized in that: The lifting device (6) includes a housing (601), which is installed on the side of the sign post (4). A handwheel (602) is connected to the outer side of the housing (601), and a rotating shaft (603) is connected to the inner end of the handwheel (602). A ratchet (604) is connected to the surface of the rotating shaft (603). A lifting groove (605) is provided inside the sign post (4). A lifting rod (606) is slidably connected inside the lifting groove (605). A toothed groove (607) is provided on the side of the lifting rod (606). The ratchet (604) meshes with the toothed groove (607). Limiting blocks (608) are connected to both sides of the bottom of the lifting rod (606). A limiting groove (609) is provided on the inner side of the lifting groove (605).

5. The signpost turning flag overpass sensing device according to claim 4, characterized in that: The lifting rod (606) forms a sliding limiting structure inside the lifting groove (605) through the limiting block (608) and the limiting groove (609). The outer wall size of the limiting block (608) matches the inner wall size of the limiting groove (609).

6. The signpost turning flag overpass sensing device according to claim 1, characterized in that: The ratio of the number of teeth of the rotating gear (706) to the number of teeth of the half gear (708) is 1:

2. The motor (704) drives the sensor (710) to reciprocate within the range of 0-90° through gear transmission.

7. The signpost turning flag overpass sensing device according to claim 1, characterized in that: The data processing box (702) integrates a wireless transmission module and a storage unit, and the data processing box (702) is connected by wires to the sensor (710) and the display screen (712).

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