CN219997675U - Detection warning system is not worn to safety helmet - Google Patents
Detection warning system is not worn to safety helmet Download PDFInfo
- Publication number
- CN219997675U CN219997675U CN202223346460.9U CN202223346460U CN219997675U CN 219997675 U CN219997675 U CN 219997675U CN 202223346460 U CN202223346460 U CN 202223346460U CN 219997675 U CN219997675 U CN 219997675U
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- Prior art keywords
- safety helmet
- audible
- helmet body
- alarm
- alarm circuit
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 230000000007 visual effect Effects 0.000 claims abstract description 24
- 238000010276 construction Methods 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Helmets And Other Head Coverings (AREA)
Abstract
The utility model discloses a helmet non-wearing detection warning system, which comprises a helmet body, wherein an alarm circuit is arranged on the surface of a shell of the helmet body and comprises a battery arranged in the helmet body, and an audible and visual alarm is connected in series on a cable between two poles of the battery; the top of the lining inside the safety helmet body is provided with a button switch, and the button switch is connected with the audible and visual alarm in series and is electrically connected to the alarm circuit. The device has solved the prior art and is difficult to in time supervise the condition of wearing to the neck area of safety helmet, and the problem of warning has the characteristics that whether the automatically detecting safety helmet neck area is worn correctly to send warning to the illegal action.
Description
Technical Field
The utility model belongs to the technical field of engineering construction, and particularly relates to a helmet non-wearing detection warning system.
Background
In construction in engineering industry, field construction personnel are more; when wearing the safety helmet, many workers often do not like to hang the neck strap of the safety helmet on the chin correctly for convenience or comfort, so that the safety helmet is not firm enough to wear, and is easy to drop in danger, and potential safety hazards exist; and because the construction site is often bigger, the project is more, personnel are wider, only supervision personnel is needed to carry out visual supervision, whether the neck strap is worn correctly by workers is difficult to find effectively, therefore, a detection warning system which is not worn by the safety helmet is needed to be designed, whether the neck strap of the safety helmet is worn correctly is monitored in real time, and warning is given out to illegal behaviors.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a detection warning system for the helmet, which solves the problem that the prior art is difficult to effectively and timely monitor and warn the wearing condition of the neck strap of the helmet, and has the characteristics of automatically detecting whether the neck strap of the helmet is correctly worn and warning illegal behaviors.
In order to solve the technical problems, the utility model adopts the following technical scheme: the detection warning system for the non-wearing of the safety helmet comprises a safety helmet body, wherein an alarm circuit is arranged on the surface of a shell of the safety helmet body and comprises a battery arranged in the safety helmet body, and an audible and visual alarm is connected in series on a cable between two poles of the battery; the top of the lining inside the safety helmet body is provided with a button switch, and the button switch is connected with the audible and visual alarm in series and is electrically connected to the alarm circuit.
Further, the battery is effectively a rechargeable lithium battery.
Preferably, the lower part of the helmet body is connected with a neck strap, and the middle part of the neck strap is connected with a tension detection mechanism.
Preferably, the tension detecting mechanism comprises a sleeved piston cylinder and a piston rod; the inner wall of the opening of the piston cylinder is connected with a resistance strain gauge which is matched with the piston rod in a contact way; the end parts of the piston cylinder and the piston rod are all connected with the neck strap in a hanging way through hooks.
Preferably, the resistance type strain gauge is electrically connected with the alarm circuit, and the resistance type strain gauge is arranged in parallel with the audible and visual alarm.
Preferably, the alarm circuit is provided with a fixed resistor which is matched with the audible and visual alarm in series.
Further, the resistance strain gauge is a resistance strain gauge with the BX350-3AA size, and the resistance is reduced along with the increase of stress; when personnel wear the safety helmet correctly, take the neck strap taut to suitable degree, strain gauge resistance reduces this moment, can carry out the short circuit with audible and visual alarm to close audible and visual alarm.
Further, when a person wears the neck strap incorrectly, the resistance type strain gauge has larger resistance, and current can pass through the audible and visual alarm to warn.
Further, the fixed resistor can effectively avoid the short circuit of the alarm circuit.
The beneficial effects of the utility model are as follows:
the system is refitted at the safety helmet, the alarm circuit is arranged to monitor the real-time wearing condition of the safety helmet and whether the neck belt is correct, so that the problem that the wearing condition of the safety helmet is difficult to monitor and warn effectively and timely in the prior art is effectively solved, and the safety helmet wearing system has the characteristic of avoiding the behavior of illegal wearing of the safety helmet.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a tension detecting mechanism according to the present utility model;
FIG. 3 is a circuit diagram of the alarm circuit of the present utility model;
the reference numerals in the drawings are: the safety helmet comprises a battery 1, an audible and visual alarm 2, a fixed resistor 3, a safety helmet body 4, a button switch 41, a neck strap 42, a piston cylinder 43, a piston rod 44, a resistance strain gauge 45, a hook 46 and a tension detection mechanism 7.
Detailed Description
As shown in fig. 1-3, a helmet non-wearing detection warning system comprises a helmet body 4, wherein an alarm circuit is arranged on the surface of the shell of the helmet body 4 and comprises a battery 1 arranged in the helmet body 4, and an audible and visual alarm 2 is connected in series on a cable between two poles of the battery 1; the top of the inner lining inside the helmet body 4 is provided with a button switch 41, and the button switch 41 is connected with the audible and visual alarm 2 in series and electrically connected to an alarm circuit.
Further, the battery is effectively a rechargeable lithium battery.
Preferably, the lower part of the helmet body is connected with a neck strap 42, and the middle part of the neck strap 42 is connected with a tension detection mechanism 7.
Preferably, the tension detecting mechanism comprises a sleeved piston cylinder 43 and a piston rod 44; the inner wall of the opening of the piston cylinder 43 is connected with a resistance strain gauge 45 which is in contact fit with the piston rod 44; the piston cylinder 43 and the end of the piston rod 44 are both hooked to the neck strap 42 by a hook 46.
Preferably, the resistive strain gauge 45 is electrically connected with the alarm circuit, and the resistive strain gauge 45 is arranged in parallel with the audible and visual alarm 2.
Preferably, a fixed resistor 3 is arranged on the alarm circuit and is matched with the audible and visual alarm 2 in series.
Further, the resistance strain gauge 45 is a resistance strain gauge with BX350-3AA size, and the resistance is reduced along with the increase of stress; when personnel wear the safety helmet correctly, take up neck area to suitable degree, the strain gauge resistance reduces this moment, can carry out the short circuit with audible and visual alarm 2 to close audible and visual alarm 2.
Further, when a person wears the neck strap incorrectly, the resistance type strain gauge has larger resistance, and current can pass through the audible and visual alarm to warn.
Further, the fixed resistor 3 can effectively avoid the short circuit of the alarm circuit.
The working principle of the detection warning system not worn on the safety helmet is as follows:
when the helmet is used, the button switch 41 and the resistance strain gauge 45 in the helmet detect whether the helmet body 4 is worn and whether the neck strap 42 is correctly mounted, if the helmet is illegal, the audible and visual alarm 2 is connected through the alarm circuit to continuously warn, an operator is reminded to correctly wear the helmet, and the audible and visual alarm 2 is stopped after the neck strap is correctly tensioned by the user.
The above embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments of the present utility model may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (3)
1. The utility model provides a detection warning system is not worn to safety helmet which characterized in that: the safety helmet comprises a safety helmet body (4), wherein an alarm circuit is arranged on the surface of the shell of the safety helmet body (4), the alarm circuit comprises a battery (1) arranged in the safety helmet body (4), and an audible and visual alarm (2) is connected in series on a cable between two poles of the battery (1); the top of the inner lining in the safety helmet body (4) is provided with a button switch (41), and the button switch (41) is connected in series with the audible and visual alarm (2) and is electrically connected to an alarm circuit; the lower part of the helmet body is connected with a neck belt (42), and the middle part of the neck belt (42) is connected with a tension detection mechanism (7); the tension detection mechanism comprises a sleeved piston cylinder (43) and a piston rod (44); the inner wall of the opening of the piston cylinder (43) is connected with a resistance strain gauge (45) which is in contact fit with a piston rod (44); the ends of the piston cylinder (43) and the piston rod (44) are both connected with the neck belt (42) in a hanging way through a hanging hook (46).
2. The headgear unworn detection and warning system of claim 1, wherein: the resistance type strain gauge (45) is electrically connected with the alarm circuit, and the resistance type strain gauge (45) is connected with the audible and visual alarm (2) in parallel.
3. The headgear unworn detection and warning system of claim 1, wherein: the alarm circuit is provided with a fixed resistor (3) which is matched with the audible and visual alarm (2) in series.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202223346460.9U CN219997675U (en) | 2022-12-14 | 2022-12-14 | Detection warning system is not worn to safety helmet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202223346460.9U CN219997675U (en) | 2022-12-14 | 2022-12-14 | Detection warning system is not worn to safety helmet |
Publications (1)
Publication Number | Publication Date |
---|---|
CN219997675U true CN219997675U (en) | 2023-11-10 |
Family
ID=88608428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202223346460.9U Active CN219997675U (en) | 2022-12-14 | 2022-12-14 | Detection warning system is not worn to safety helmet |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN219997675U (en) |
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2022
- 2022-12-14 CN CN202223346460.9U patent/CN219997675U/en active Active
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