Anti-disassembly wearing detection device for helmet bridle

Abstract

The utility model relates to the technical field of target detection, and discloses an anti-disassembly wearing detection device for a helmet bridle, which comprises a shell, the shell comprises an upper cover and a lower shell, the lower end face of the upper cover is provided with a mounting groove matched with the bridle, the lower shell is internally provided with a circuit board, the circuit board is provided with a detection circuit, and the detection circuit is connected with the upper cover. The detection circuit is connected with a microswitch, a channel is formed in the center of the upper end face of the lower shell, a plastic column is installed in the channel in a sliding mode, the top end of the plastic column stretches out of the lower shell to abut against the bridle, and the bottom end of the plastic column abuts against the microswitch. After the upper cover, the bridle and the lower shell are assembled, the plastic column abuts against the bridle and is stressed to move downwards, the microswitch is closed, activation is determined to be completed after a detection circuit detects that the microswitch is closed for more than 30 seconds, once the bridle is pulled out or separated from the shell, the plastic column is bounced, the microswitch is opened again, and the plastic column is closed. And the detection circuit affirms that the device is invalid and timely feeds back when the user privately removes the device.

Description

Technical Field

[0001] The utility model relates to the technical field of target detection, in particular to an anti-disassembly wearing detection device for a helmet strap. Background Art

[0002] At present, there are usually two types of helmets with wearing detection functions on the market: one is to use infrared counter-radiation sensors, and set the infrared transmitter and receiver on opposite sides of the inside of the helmet respectively. When the receiver cannot receive the signal from the transmitter, it is considered that there is an obstacle in the middle, that is, the helmet has been worn. However, this method can only detect whether the helmet body is worn on the rider's head, and cannot determine whether the helmet strap is correctly buckled and fastened. If the helmet strap is not fastened, the helmet can easily fall off and lose its protective function in the event of an accident; the second is to directly install the detection device on the helmet strap, and determine whether the user has safely worn the helmet by detecting the strap status, but it does not have an anti-dismantling function, and it is easy for the user to remove the detection device privately. Utility Model Content

[0003] The utility model aims to provide an anti-disassembly wearing detection device for helmet straps to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-disassembly wearing detection device for a helmet strap, comprising a shell, the shell comprising an upper cover and a lower shell, the lower end surface of the upper cover is provided with a mounting groove matching the strap, a circuit board is provided inside the lower shell, the circuit board is provided with a detection circuit, a detection module and a power supply battery, a micro switch is connected to the detection circuit, a channel is provided at the center of the upper end surface of the lower shell, a plastic column is slidably installed in the channel, the top end of the plastic column extends out of the lower shell to abut against the strap, and the bottom end abuts against the micro switch.

[0005] The following improvement is made in the solution of the present application: the inner wall of the installation groove and both sides of the top of the lower shell are provided with saw teeth that bite into each other, and the saw teeth are symmetrical along the center of the plastic column.

[0006] The following improvements are made in the present application: a buckle is provided on the side of the upper cover, and a slot that matches the buckle is provided on the upper cover and the lower shell, a rotating shaft is provided on the upper end of the buckle, a T-shaped rod is sleeved on the rotating shaft, and slide grooves are provided on both sides of the inner wall of the slot of the upper cover, and the end of the T-shaped rod away from the rotating shaft is slidably installed in the slide groove. The upper cover and the lower shell are fixed together by the buckle and the slot, and the buckle rotates downward and slides to the bottom of the slot of the lower shell under the cooperation of the slide groove, the T-shaped rod and the rotating shaft, and then slides upward and buckles into the slot.

[0007] The following improvement is made in the solution of the present application: the slide groove is inclined from top to bottom toward the inner side of the upper cover.

[0008] The following improvements are made in the present application: the detection module includes a Bluetooth communication chip, a Bluetooth antenna, a gyroscope, a capacitive induction coil and a six-axis accelerometer. One end of the Bluetooth communication chip is set through the lower shell, and the Bluetooth communication chip has a built-in temperature sensor. The capacitive induction coil is used for contact detection, and the gyroscope and the six-axis accelerometer are used for posture and movement amplitude detection, which can ensure that the helmet is worn in the correct direction and close to the skin; the temperature sensor is used for temperature detection, which can avoid bypassing the contact detection. If the rider tries to fix an object on the device for a long time to simulate human contact, the temperature will not rise slowly. A comprehensive judgment is made through a detection system that includes multiple detection methods to ensure that the helmet strap is correctly buckled and tightened, effectively improving the safety factor.

[0009] The following improvements are made in the solution of the present application: the Bluetooth antenna and the capacitive induction coil are both connected to the Bluetooth communication chip, and the gyroscope is connected to the six-axis accelerometer.

[0010] Compared with the prior art, the utility model provides an anti-disassembly wearing detection device for helmet straps, which has the following beneficial effects:

[0011] The utility model adopts a one-time activation device composed of a detection circuit, a micro switch and a plastic column. After the upper cover, the strap and the lower shell are assembled, the plastic column and the strap resist the force and move downward to close the micro switch. After the detection circuit detects that the micro switch is closed for more than 30 seconds, it is determined that the activation is completed. Once the strap is pulled out or the upper cover is separated from the lower shell, causing the plastic column to pop up and the micro switch to be turned on again, the detection circuit determines that the device is invalid, and timely feedback is given when the user dismantles it privately. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0013] Figure 1 It is a cross-sectional view of the utility model;

[0014] Figure 2 It is a schematic diagram of the connection between the buckle and the slot;

[0015] Figure 3 This is a plan view of the detection module.

[0016] In the figure: 1. shell; 11. upper cover; 12. lower shell; 13. mounting slot; 14. channel; 15. serration; 16. slot; 2. circuit board; 21. detection circuit; 22. power supply battery; 23. micro switch; 24. Bluetooth communication chip; 25. Bluetooth antenna; 26. gyroscope; 27. capacitive induction coil; 28. six-axis accelerometer; 3. plastic column; 4. buckle; 41. shaft; 42. T-bar; 43. slide groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Example

[0020] like Figure 1-3 As shown, a helmet strap anti-disassembly wearing detection device comprises a housing 1 consisting of an upper cover 11 and a lower shell 12, wherein the lower end surface of the upper cover 11 is provided with a mounting groove 13 matched with the strap, and the inner wall of the mounting groove 13 and the two sides of the top of the lower shell 12 are provided with saw teeth 15 that bite each other, and the saw teeth 15 are symmetrical along the center of the plastic column 3; a circuit board 2 is provided inside the lower shell 12, and a detection circuit 21, a detection module and a power supply battery 22 are provided on the circuit board 2, a micro switch 23 is connected to the detection circuit 21, and a central portion of the upper end surface of the lower shell 12 is provided with a Channel 14, a plastic column 3 is slidably installed in the channel 14, the top end of the plastic column 3 extends out of the lower shell 12 and abuts against the strap, and the bottom end abuts against the micro switch 23; the detection module includes a Bluetooth communication chip 24, a Bluetooth antenna 25, a gyroscope 26, a capacitive induction coil 27 and a six-axis accelerometer 28, one end of the Bluetooth communication chip 24 is set through the lower shell 12, and the Bluetooth communication chip 24 has a built-in temperature sensor, wherein the Bluetooth antenna 25 and the capacitive induction coil 27 are both connected to the Bluetooth communication chip 24, and the gyroscope 26 is connected to the six-axis accelerometer 28.

[0021] A buckle 4 is provided on the side of the upper cover 11, and a slot 16 matching the buckle 4 is provided on the upper cover 11 and the lower shell 12. A rotating shaft 41 is provided on the upper end of the buckle 4, and a T-shaped rod 42 is sleeved on the rotating shaft 41. Slide grooves 43 are provided on both sides of the inner wall of the slot 16 of the upper cover 11. One end of the T-shaped rod 42 away from the rotating shaft 41 is slidably installed in the slide groove 43, and the slide groove 43 is inclined from top to bottom toward the inner side of the upper cover 11.

Claims

1. A helmet strap anti-disassembly wearing detection device, characterized in that: The invention comprises a shell (1), wherein the shell (1) comprises an upper cover (11) and a lower shell (12); a mounting groove (13) matching with a strap is provided on the lower end surface of the upper cover (11); a circuit board (2) is provided inside the lower shell (12); a detection circuit (21), a detection module and a power supply battery (22) are provided on the circuit board (2); a micro switch (23) is connected to the detection circuit (21); a channel (14) is provided at the center of the upper end surface of the lower shell (12); a plastic column (3) is slidably installed in the channel (14); the top end of the plastic column (3) extends out of the lower shell (12) to abut against the strap, and the bottom end abuts against the micro switch (23).

2. The anti-disassembly wearing detection device for helmet straps according to claim 1, characterized in that: The inner wall of the installation groove (13) and both sides of the top of the lower shell (12) are provided with saw teeth (15) that mesh with each other, and the saw teeth (15) are symmetrical along the center of the plastic column (3).

3. The anti-disassembly wearing detection device for helmet straps according to claim 1, characterized in that: A buckle (4) is provided on the side of the upper cover (11), and a slot (16) matching with the buckle (4) is provided on the upper cover (11) and the lower shell (12). A rotating shaft (41) is provided on the upper end of the buckle (4), and a T-shaped rod (42) is sleeved on the rotating shaft (41). Slide grooves (43) are provided on both sides of the inner wall of the slot (16) of the upper cover (11), and one end of the T-shaped rod (42) away from the rotating shaft (41) is slidably installed in the slide groove (43).

4. The anti-disassembly wearing detection device for helmet straps according to claim 3, characterized in that: The slide groove (43) is inclined from top to bottom toward the inner side of the upper cover (11).

5. The anti-disassembly wearing detection device for helmet straps according to claim 1, characterized in that: The detection module comprises a Bluetooth communication chip (24), a Bluetooth antenna (25), a gyroscope (26), a capacitive induction coil (27) and a six-axis accelerometer (28); one end of the Bluetooth communication chip (24) is arranged to penetrate the lower housing (12), and the Bluetooth communication chip (24) has a built-in temperature sensor.

6. The anti-disassembly wearing detection device for helmet straps according to claim 5, characterized in that: The Bluetooth antenna (25) and the capacitive induction coil (27) are both connected to the Bluetooth communication chip (24), and the gyroscope (26) is connected to the six-axis accelerometer (28).

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