Novel safety helmet

Abstract

A novel safety helmet comprises a safety helmet body, a storage battery, a solar cell panel, a short message sending module, a photoelectric proximity switch, an alarm, an element box, a vibration detection circuit and an electric quantity prompt circuit. The solar cell panel is installed at the outer end of the element box, and the multiple photoelectric proximity switches, the storage battery, the short message sending module, the alarm, the vibration detection circuit and the electric quantity prompting circuit are installed in the element box and electrically connected. When a high-altitude falling object hurts a worker, an alarm can be given to remind other workers on site and related management personnel at the far end, the related personnel can rescue in time, and the negative effects caused by the fact that the worker cannot be rescued in time after being injured are reduced; when a worker works, the left end, the right end, the front end, the rear end and the upper end approach other buildings or other objects, after one corresponding photoelectric proximity switch detects the situation, the alarm can remind the worker not to collide with foreign matter in time, and the probability that the head of the worker is collided is reduced as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of safety helmet equipment, in particular to a new type of safety helmet. Background Technique

[0002] A safety helmet is a shallow domed hat made of steel, engineering plastic or other materials worn to protect the head, mainly playing the role of preventing impact objects from hurting the heads of workers. The safety helmet mainly consists of a cap shell, a cap lining, a lower cheek strap and a rear hoop. The cap shell is hemispherical, firm, smooth and has a certain elasticity. The impact and puncture kinetic energy of the impact object is mainly borne by the cap shell. There is a certain space between the cap shell and the cap lining, which can buffer and disperse the instantaneous impact force, thus avoiding or reducing the direct injury to the head. Impact absorption performance, puncture resistance performance, lateral rigidity, electrical insulation performance, and flame retardancy are the requirements for the basic technical performance of the safety helmet.

[0003] With the development of industrial technology, the functions of safety helmets have become more and more perfect. For example, in the authorized patent with the patent number "202120436289.7" and the patent name "Safety Helmet" in China, it is recorded that "the safety helmet is provided with a protection plate, and by arranging an elastic member between the protection plate and the safety helmet body, the buffer force of collision can be increased, and the safety level of the safety helmet can be improved". As can be seen from the above, although the comparative patent has achieved the invention technical effect described to a certain extent, limited by the structure, like other safety helmets in this field, there are still some technical problems as follows. First: It does not have the function of monitoring falling objects. When an object falls from a height hits the safety helmet, the worker is injured, seriously falls to the ground and cannot call for help independently. If there are no other workers on the scene to provide rescue, there is a chance of unforeseen accidents to the worker due to late rescue (such as late rescue even posing a safety threat to the life of the worker). Second: It does not have the function of monitoring approaching obstacles. When a worker approaches a building or other objects too closely during work, due to lack of prompt, there is a chance that the worker accidentally hits an obstacle and gets injured on the head. Considering the above factors, it is necessary to provide a safety helmet with a safety prompt function. Content of the Utility Model

[0004] In order to overcome the shortcomings of existing safety helmets, such as the lack of the function of alerting relevant management personnel after falling objects injure people, and the inability to monitor the safe distance between workers and surrounding buildings due to structural limitations, as well as the drawbacks described in the background technology, the utility model provides a new safety helmet based on a safety helmet body, which can alarm and alert other workers on site and remote relevant management personnel when objects falling from high altitude injure the workers' heads after wearing it, thereby reducing the adverse consequences caused by the lack of timely rescue after the workers are injured. In addition, when the workers are working, the left and right sides, front and rear ends, and upper end of the head are close to other buildings or other objects, which can timely alert the workers, thereby minimizing the chance of head injuries to the workers.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel safety helmet comprises a safety helmet body, a storage battery, a solar panel, a text message sending module, a photoelectric proximity switch, an alarm, and a component box, and is characterized in that it also has a vibration detection circuit and a power prompt circuit; the solar panel is mounted on the outer end of the component box, the component box is mounted outside the upper end of the safety helmet body, there are multiple photoelectric proximity switches, and multiple photoelectric proximity switches, storage batteries, text message sending modules, alarms, vibration detection circuits, and power prompt circuits are mounted in the component box; the two poles of the battery and the two poles of the solar panel and the power prompt circuit, multiple sets of photoelectric proximity switches, and the power input end of the vibration detection circuit are electrically connected; the power output ends of the multiple sets of photoelectric proximity switches and the vibration detection circuit are electrically connected to one end of the power input of the alarm; the signal output end of the vibration detection circuit is electrically connected to one end of the power input of the text message module.

[0007] Furthermore, in the plurality of photoelectric proximity switches, the detection heads are respectively located outside the component box at multiple positions.

[0008] Furthermore, the vibration detection circuit includes an electrically connected vibration sensor, a resistor, a thyristor, and a diode, wherein the thyristor anode is connected to one end of the vibration sensor, the other end of the vibration sensor is connected to one end of the resistor, the other end of the resistor is connected to the thyristor control electrode, and the thyristor cathode is connected to the positive electrode of the diode.

[0009] Furthermore, the vibration sensor includes a shell, a metal spring, and a metal ball. A metal contact plate is installed at the lower end of the shell. One end of the spring is installed at the upper end of one side inside the shell. The metal ball is installed at the other end of the spring, and the upper end of the metal ball is spaced apart from the upper part of the contact plate. The shell is horizontally installed in the component box.

[0010] Furthermore, the power prompt circuit includes an electrically connected resistor, a light-emitting diode, a transistor and a three-terminal voltage detector, the positive power supply input terminal of the three-terminal voltage detector is connected to one end of the first resistor and one end of the second resistor, the other end of the first resistor is connected to the emitter of the transistor, the output end of the three-terminal voltage detector is connected to one end of the third resistor, the other end of the third resistor is connected to the base of the transistor, the collector of the transistor is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to the positive electrode of the light-emitting diode, and the negative power supply input terminal of the three-terminal voltage detector is connected to the other end of the second resistor and the negative electrode of the light-emitting diode.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is based on a helmet body. When a worker wears the helmet, when a falling object injures the worker, the vibration detection circuit can send an alarm through an alarm and a text message sending module to alert other workers on site and remote related management personnel, so that the relevant personnel can provide timely rescue, thereby reducing the adverse consequences caused by the worker not receiving timely rescue after being injured; (2) When the worker is working and the left and right sides, front and rear ends, and upper ends are close to other buildings or other objects, a corresponding photoelectric proximity switch will detect it, and the alarm can promptly remind the worker not to collide with foreign objects, thereby minimizing the chance of the worker's head being injured. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure and the partially enlarged structure of the utility model.

[0014] Figure 2 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0015] Figure 1 , 2 As shown in the figure, the new helmet includes a helmet body 1, a battery G2, a solar panel G1 (12V, 2W), a short message sending module T2, a photoelectric proximity switch TN, a power switch S1, an alarm B, a component box 2, a charging socket CZ, and also has a vibration detection circuit 3 and a power prompt circuit 4; the lower end of the solar panel G1 is mounted on the outer end of the component box 2 with glue, and the lower end of the component box 2 is mounted outside the middle of the upper end of the helmet body, there are five photoelectric proximity switches TN, and the five photoelectric proximity switches TN, the battery G2, the short message sending module T2, the power switch S1, the alarm B, the vibration detection circuit 3, the power prompt circuit 4, and the charging socket CZ are mounted on the circuit board in the component box 2. The jack of the charging socket CZ, the handle of the power switch S1, and the luminous surface of the light-emitting diode VL1 are respectively located outside the three openings on the left end of the component box.

[0016] Figure 1 , 2 As shown in 2 , among the five photoelectric proximity switches TN, their detection heads are respectively located at the front side, left side, right side, the middle opening at the rear side of the component box 2, and outside the middle opening at the rear of the upper end. The vibration detection circuit includes a vibration sensor Q, a resistor R1, a thyristor VS, and a diode VD1 connected through circuit board wiring. The anode of the thyristor VS is connected to one end of the vibration sensor Q (the left end of the spring), the other end of the vibration sensor Q (the right end of the contact plate) is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the control electrode of the thyristor VS, and the cathode of the thyristor VS is connected to the positive electrode of the diode VD1. The vibration sensor Q includes a hollow sealed insulating housing 51, a copper spring 52, and a copper metal ball 53. A copper contact plate 54 is adhesively bonded to the lower end of the housing 51 with glue. The left end of the spring 52 is thermally welded to the upper left end inside the housing 51. The upper end of the metal ball 53 is welded to the lower right end of the spring 52, and there is a gap between the lower end of the metal ball 53 and the upper part of the right end of the contact plate 54. The wires connected to the left end of the spring 52 and the rear end of the contact plate 54 are respectively led out through the openings at the upper left end and the rear end of the housing 51 (the openings are sealed with sealant). The housing 51 is horizontally installed at the lower end inside the component box 2 and the spring is located at the upper part. When the staff wears the safety helmet body 1 and conducts normal work activities, the lower end of the metal ball 53 does not contact the contact plate 54. After a heavy object hits the safety helmet body 1 from a height, the impact force generated will cause the lower end of the metal ball 53 to contact the contact plate 54. The power quantity prompt circuit includes resistors R3, R4, R5, R6, a light-emitting diode VL1, a triode V1, and a three-terminal voltage detector T3 connected through circuit board wiring. The positive power input terminal 2 of the three-terminal voltage detector T3 is connected to one end of the first resistor R3 and one end of the second resistor R4. The other end of the first resistor R3 is connected to the emitter of the triode V1. The output terminal 1 of the three-terminal voltage detector T2 is connected to one end of the third resistor R5. The other end of the third resistor R5 is connected to the base of the triode V1. The collector of the triode V1 is connected to one end of the fourth resistor R6. The other end of the fourth resistor R6 is connected to the positive electrode of the light-emitting diode VL1. The negative power input terminal 3 of the three-terminal voltage detector T3 is connected to the other end of the second resistor R4 and the negative electrode of the light-emitting diode VL1.

[0017] Figure 1 , 2As shown, the two poles of the storage battery G2, the two poles of the solar panel G1, the other end of the resistor R3 at the power input end of the power quantity prompt circuit, and the negative pole of the light-emitting diode VL1 are respectively connected by wires, and are connected in series through the power switch S1 and the power input ends 1 and 2 of five sets of photoelectric proximity switches TN, and the anode of the thyristor VS at the power input end of the vibration detection circuit (connected to the positive pole of the storage battery) are connected by wires; the power output ends 3 of the five sets of photoelectric proximity switches TN and the negative pole of the diode VD1 at the power output end of the vibration detection circuit, the negative pole of the storage battery G2 and the two ends of the power input of the alarm B are respectively connected by wires; the cathode of the thyristor VS at the signal output end of the vibration detection circuit, the negative pole of the storage battery G2 and the two ends of the power input 1 and 2 of the short message sending module T2 are respectively connected by wires. The 2 and 3 pins of the short message sending module T2 are connected by wires.

[0018] Figure 1 , 2 As shown, this new type is based on the safety helmet body 1. Like the existing safety helmets, it is worn by the staff on the head to protect the head (the above is the existing mature technology, and this application will not elaborate on and protect this technical point). Usually, when the staff wears the safety helmet body 1 outdoors, the solar panel G1 generates electric energy under light irradiation to charge the storage battery G2. In this way, this application can supply power to the relevant power-consuming circuits when the light is not good; in actual situations, when the electric energy generated by the solar panel G1 is insufficient, the staff can also insert the plug of the external 12V power charger into the charging socket CZ to charge the storage battery G2. After the power quantity prompt circuit is powered on and works, if the storage battery G2 is fully charged (for example, higher than 12V), the power supply output by the storage battery G2 is divided by the resistors R3 and R4 and enters the voltage at the 2nd pin of the three-terminal voltage detector T3, which is higher than the 4.75V threshold voltage inside the three-terminal voltage detector T3. In this way, the 1st pin of the three-terminal voltage detector T3 outputs a high level, and the triode V1 will not conduct. Correspondingly, the light-emitting diode VL1 will not be powered on and emit light, indicating that the storage battery G2 is fully charged and does not need to be charged temporarily. When the storage battery G2 is undercharged (for example, lower than 12V), the power supply output by the storage battery G2 is divided by the resistors R3 and R4 and enters the voltage at the 2nd pin of the three-terminal voltage detector T3, which is lower than the 4.75V threshold voltage inside the three-terminal voltage detector T3. In this way, the 1st pin of the three-terminal voltage detector T3 outputs a low level, and the low level is stepped down and current-limited by the resistor R5 and enters the base of the triode VL. The triode V1 conducts and the collector outputs a high level and enters the positive power input end of the light-emitting diode VL1 (the resistor R6 steps down and current-limits), and the light-emitting diode VL1 will be powered on and emit light, indicating that the storage battery G2 is short of electricity and needs to be charged. The staff can then charge the storage battery G2 in time to ensure the normal operation of the relevant circuits.

[0019] Figure 1 , 2As shown, the staff member wears the safety helmet body 1. If there are other objects spaced at the front and back sides, left and right sides, or upper side of the head, or if the building spacing is relatively large (for example, greater than 40 cm), the 3rd pin of a corresponding photoelectric proximity switch TN does not output a high level, and the alarm B will not be powered on to sound. If there are other objects spaced at the front or back side, left and right sides, or upper side of the head, or if the building spacing is relatively close (for example, less than 40 cm), the 3rd pin of a corresponding photoelectric proximity switch TN outputs a high level and enters the positive power input terminal of the alarm B, and the alarm B will be powered on to sound, prompting the staff member to pay attention to not colliding the head with foreign objects and getting injured (due to the reverse cut-off effect of the diode VD1, the short message module T2 will not be powered on to work). After the vibration detection circuit is powered on to work, if there is no foreign object hitting the safety helmet body 1, the lower end of the metal ball 53 inside the vibration switch and the upper end of the metal contact plate 54 will not contact, then the 12V power supply will not trigger the thyristor VS to conduct, and correspondingly, the short message module T2 and the alarm B will not be powered on to work. When a foreign object hits the safety helmet body 1, due to the large impact force of the foreign object (such as a brick) from top to bottom, the lower end of the metal ball 53 inside the vibration switch and the upper end of the metal contact plate 54 will contact instantaneously, then the 12V power supply will trigger the control electrode of the thyristor VS, and then the thyristor VS will conduct, and correspondingly, the short message sending module T2 and the alarm B (sounding the alarm) will be powered on to work; in this way, other staff members near the injured staff member can timely rescue the injured person after hearing the alarm sound; after the short message sending module T2 is powered on to work, since pins 2 and 3 are connected, an internal stored short message will be sent out. After the mobile phone of the relevant remote management personnel receives the short message, they can understand the specific situation in the first time, contact the staff member according to the phone number of the sent short message, and go to the scene or notify other personnel to rescue when necessary (the short message prompting the remote management personnel method is mainly to prevent the relevant staff members from being seriously injured and falling to the ground, without the ability to call for help by themselves, and there is no other staff member on the scene to rescue, resulting in their failure to get timely assistance).

[0020] Figure 1 、 2 As shown above, when there is a falling object from a height hurting the staff member in this new type, it can alarm and prompt other on-site staff members and relevant remote management personnel, and the relevant personnel can rescue in time, reducing the adverse consequences caused by the staff member not getting timely assistance after being injured; when the staff member is working, if the head is too close to a building or other objects, and a corresponding photoelectric proximity switch detects it, the alarm can timely prompt the staff member not to collide with foreign objects, and as much as possible prevent the probability of the staff member's head and other parts being bruised. Figure 2Among them, the resistance values of resistors R1, R3, R4, R5, and R6 are 1K, 4.75K, 1.25K, 1K, and 600Ω respectively; the storage battery G2 is a lithium storage battery of model 12V / 4Ah; the alarm B is a finished product of an active continuous sound audible alarm of model XM12V; the thyristor VS is a plastic-encased unidirectional thyristor of model MCR100-1; the diode VD1 is of model 1N4007; the triode VI is of model 9012 (PNP type); the light-emitting diode VL1 is a red light-emitting diode; the three-terminal voltage detector T3 is of model AN051A; the photoelectric proximity switch TN is an infrared photoelectric switch of model E18-D50NK. The infrared photoelectric switch has two power input terminals and one signal output terminal. When the infrared beam emitted by its detection head is blocked and received by the receiving head juxtaposed with the transmitting head during operation, its signal output terminal outputs power, otherwise it does not output power. The housing of the infrared photoelectric switch has a distance adjustment knob. Turning it to the left makes the detection distance closer, and vice versa makes the detection distance farther (adjusted to 40 cm in this embodiment); the short message module T2 is a short message alarm module of model GSM800. The finished product of the short message alarm module has two power input terminals, pins 1 and 2, and signal input ports, pins 3-8. After a low-level signal is input to each signal input port, the finished product of the short message alarm module will send a short message via the wireless mobile network. There are short messages stored in the short message alarm module. In this embodiment, the short message "The staff has been injured" is stored. After a low-level signal is input to pin 3 of the signal input port of the short message alarm module, the short message alarm module can send a short message.

[0021] The above has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

[0022] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new type of safety helmet, comprising a safety helmet body, a storage battery, a solar panel, a short message sending module, a photoelectric proximity switch, an alarm, and a component box, characterized in that, It also has a vibration detection circuit and a power quantity reminder circuit; the solar panel is installed at the outer end of the component box, the component box is installed at the upper outer end of the safety helmet body, there are multiple photoelectric proximity switches, and multiple photoelectric proximity switches, a storage battery, a short message sending module, an alarm, a vibration detection circuit, and a power quantity reminder circuit are installed in the component box; both poles of the storage battery, both poles of the solar panel, the power quantity reminder circuit, multiple sets of photoelectric proximity switches, and the power input ends of the vibration detection circuit are electrically connected; the power output ends of the multiple sets of photoelectric proximity switches and the vibration detection circuit and one power input end of the alarm are electrically connected; the signal output end of the vibration detection circuit and one power input end of the short message module are electrically connected.

2. The new safety helmet according to claim 1, characterized in that, Among the multiple photoelectric proximity switches, the detection heads are respectively located on the outer sides of multiple orientations of the component box.

3. The novel safety helmet according to claim 1, characterized in that, The vibration detection circuit includes a vibration sensor, a resistor, a thyristor, and a diode that are electrically connected. The anode of the thyristor is connected to one end of the vibration sensor, the other end of the vibration sensor is connected to one end of the resistor, the other end of the resistor is connected to the control electrode of the thyristor, and the cathode of the thyristor is connected to the positive pole of the diode.

4. The novel safety helmet according to claim 3, wherein The vibration sensor includes a housing, a metal spring, and a metal ball. A metal contact plate is installed at the lower end of the housing. One end of the spring is installed at the upper end of one side inside the housing. The metal ball is installed at the other end of the spring, and there is a distance between the upper end of the metal ball and the upper part of the contact plate. The housing is horizontally installed in the component box.

5. The novel safety helmet according to claim 1, characterized in that, The power quantity reminder circuit includes a resistor, a light-emitting diode, a triode, and a three-terminal voltage detector that are electrically connected. The positive power input end of the three-terminal voltage detector is connected to one end of the first resistor and one end of the second resistor. The other end of the first resistor is connected to the emitter of the triode. The output end of the three-terminal voltage detector is connected to one end of the third resistor. The other end of the third resistor is connected to the base of the triode. The collector of the triode is connected to one end of the fourth resistor. The other end of the fourth resistor is connected to the positive pole of the light-emitting diode. The negative power input end of the three-terminal voltage detector is connected to the other end of the second resistor and the negative pole of the light-emitting diode.

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