Intelligent safety helmet

Abstract

The invention belongs to the technical field of safety helmets, and particularly relates to an intelligent safety helmet which comprises an outer shell, an inner shell, a fixing head band, a buffer detection array and a control module, the inner shell is connected to the inner side of the outer shell, a hollow structure is formed between the inner shell and the outer shell, and the buffer detection array comprises a plurality of springs which are mutually connected to form a net structure; a tension sensor and a pressure sensor are arranged between any two spring connecting points, the multiple tension sensors are electrically connected with the control module, the fixing head band is connected to the inner side of the inner shell, and the peripheral edge of the fixing head band is connected with the multiple springs of the buffer detection array. The buffer detection array is stressed and pulled after the fixed headband is worn and provides buffer shock absorption, and a plurality of tension sensors on the buffer detection array detect the wearing posture of the fixed headband according to the stress state and transmit monitoring data to the control module; according to the safety helmet, the wearing posture reminding and damping functions can be provided while the light weight of the safety helmet is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of safety helmets, and particularly relates to an intelligent safety helmet. BACKGROUND

[0002] In the current high-risk operation environment such as building construction, mine operation and power engineering, although safety helmets as basic safety protection equipment have been widely popularized, there are still many deficiencies in supervision and emergency response in actual application. Especially in the operation area where the number of workers is large and the construction site is relatively open, the traditional safety management mode often fails to achieve effective supervision of each worker. On the one hand, due to the dense on-site personnel and wide distribution range, it is difficult for the management personnel to master whether each worker correctly wears a safety helmet in real time.

[0003] On the other hand, when an unexpected situation such as high-altitude falling object, collapse and electric shock occurs, if the worker cannot actively send a help signal due to impact, coma or loss of consciousness, the traditional safety helmet cannot provide any auxiliary alarm means, which delays the rescue opportunity and seriously threatens the life safety. Even the intelligent safety helmet with basic communication function also often lacks the ability to automatically identify abnormal states, such as being unable to determine whether a person has fallen through posture recognition, or not triggering the alarm mechanism in a long period of static state, thereby causing information omission. In addition, in a large construction site, due to the wide area and complex communication conditions, even if a worker finds a dangerous situation, the best rescue time may be missed due to poor information transmission or complicated response process.

[0004] Therefore, the traditional safety helmet has the above-mentioned defects. In order to meet higher safety requirements, an intelligent safety helmet in the prior art such as Chinese Patent Publication No. CN114668209B includes an outer helmet shell, a helmet liner and a lower jaw strap. The edge of the outer helmet shell is provided with a falling object detection assembly for generating ranging data. A control module is arranged on the outer helmet shell and electrically connected with the falling object detection assembly for acquiring the ranging data. When the ranging data continuously decreases at least twice, a falling object alarm signal is output. An alarm module is arranged on the outer helmet shell and electrically connected with the control module for alarming when the falling object alarm signal is received. The safety helmet can intelligently judge whether there is a falling object falling from above and actively alarm when there is a falling object falling. Although the prior art can provide some intelligent safety functions, it cannot provide a wearing posture reminder and shock absorption function while ensuring the light weight of the safety helmet. In order to solve the above-mentioned problems, an intelligent safety helmet capable of meeting the above-mentioned functions is proposed. SUMMARY

[0005] In order to solve the above-mentioned problems in the prior art, the present application provides an intelligent safety helmet.

[0006] The purpose of the application can be realized by the following technical solutions: The intelligent safety helmet of the application comprises an outer shell, an inner shell, a fixed headband, a buffer detection array and a control module, the inner shell is connected to the inner side of the outer shell, a hollow structure is formed between the inner shell and the outer shell, the buffer detection array comprises a plurality of springs and is connected to each other to form a mesh structure, a tension sensor is arranged between any two spring connection points, a plurality of tension sensors are electrically connected to the control module, the fixed headband is connected to the inner side of the inner shell, the periphery of the fixed headband is connected to a plurality of springs of the buffer detection array, the buffer detection array is pulled and stretched under stress after the fixed headband is worn and provides buffer damping, a plurality of tension sensors on the buffer detection array detect the wearing posture of the fixed headband according to the stress state and transmit monitoring data to the control module.

[0007] Further, the fixed headband comprises a hat liner and a lower jaw band, the top of the hat liner is connected to the inner side of the inner shell, the periphery of the bottom of the hat liner is connected to a plurality of springs, and the lower jaw band is connected to the hat liner.

[0008] Further, a buzzer is arranged between the inner shell and the outer shell, the buzzer is electrically connected to the control module, and the buzzer gives an alarm when the wearing posture of the fixed headband is abnormal.

[0009] Further, the buffer detection array further comprises a center fixing ring, the center fixing ring is connected to the top center of the inner side of the outer shell, a plurality of springs are connected to the center fixing ring and are connected to each other in a radial manner based on the center fixing ring.

[0010] Further, a swing rod is further arranged, the swing rod is rotatably connected between the inner shell and the outer shell, and the swing rod is connected to a spring and a hat liner at both ends to form a lever structure.

[0011] Further, a plurality of lamp beads are arranged on the corresponding positions of a plurality of tension sensors on the outer side of the inner shell and face the side of the outer shell, a plurality of lamp beads are electrically connected to the control module for power supply, and a plurality of tension sensors deviate and make the light of the lamp beads penetrate the outer shell to provide a warning.

[0012] Further, a plurality of pressure sensors are further arranged, a plurality of pressure sensors are arranged on the tension sensors one by one and face the side of the outer shell, and a plurality of pressure sensors are electrically connected to the control module.

[0013] Further, a signal transmission module is further arranged, the signal transmission module is electrically connected to the control module, the control module collects data according to the tension sensors and the pressure sensors and sends the data to a control center through the signal transmission module.

[0014] Further, the rotating connection point of the swing rod is close to the side connected with the fixed headband.

[0015] Further, the shell is coated with low light-shielding paint.

[0016] The beneficial effects of the present application are: (1) By connecting multiple springs with each other and forming tension between them, on the one hand, when the safety helmet is worn on the worker's head after being connected with the fixed headband, if an external object hits the safety helmet, the fixed headband will move to the inner shell side because there is still a gap between the fixed headband and the inner shell, and the pulling action of the fixed headband will stretch the spring connected with it and provide elastic force. Since the several springs are connected with each other, although the elastic force of a single spring is small, after the multiple springs are connected with each other to form a mesh structure, they can provide greater elastic force for buffering, so they can provide greater buffering for the safety helmet in the small hollow structure between the inner shell and the outer shell. On the other hand, since there is a connection tension sensor at the connection of any two springs, when wearing, the correct wearing posture can be obtained according to the data of several tension sensors. Since the safety helmet needs to be worn on the worker's head through the fixed headband, and the fixed headband is connected with the inner shell in a soft manner, and the bottom of the fixed headband passes around the bottom of the inner shell and is connected with the spring, when the wearing is skewed, since the springs in different areas are subjected to different forces, the data fed back to the control module by the tension sensors in different positions can be used to determine whether the wearing posture of the safety helmet is correct, and mutual reminders can be formed among workers and adjusted among them to make the safety helmet in the best wearing posture, which can play a better protection role. (2) By setting corresponding lamp beads on the outer side of the inner shell below each tension sensor, and the color of the lamp beads can be colored, since the volume of each tension sensor can block the lamp beads below, when the safety helmet is worn correctly, the tension sensor blocks the light of the lamp bead, the light of the lamp bead cannot penetrate the shell, which means that the wearing posture is correct, but if the wearing posture is incorrect, the fixed headband will pull the spring and the tension sensor away from the original position, so the tension sensor cannot block the lamp bead, and the light of the lamp bead can penetrate the shell and be observed by other workers, which can be adjusted by mutual reminders among them to adjust the wearing posture of the safety helmet. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to facilitate those skilled in the art to understand, the present application will be further described below in conjunction with the drawings.

[0018] Fig. 1 is a side view of the present application; Fig. 2 is a schematic view of the inner side structure of the shell of the present application; Fig. 3 This is a schematic diagram of the outer structure of the inner shell of the present invention; Explanation of the accompanying symbols: 1. Outer shell; 2. Inner shell; 3. Spring; 4. Center fixing ring; 5. Fixed headband; 6. Rocker arm; 7. Lamp bead; 8. Tension sensor; 9. Pressure sensor. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0020] like Figs. 1-3 As shown, an intelligent safety helmet of the present invention includes an outer shell 1, an inner shell 2, a fixed headband 5, a buffer detection array and a control module. The inner shell 2 is connected to the inner side of the outer shell 1 and a hollow structure is formed between the inner shell 2 and the outer shell 1. The buffer detection array includes a plurality of springs 3 that are interconnected to form a mesh structure. A tension sensor 8 is provided between the connection points of any two springs 3. The plurality of tension sensors 8 are electrically connected to the control module. The fixed headband 5 is connected to the inner side of the inner shell 2. The edges of the fixed headband 5 are connected to the plurality of springs 3 of the buffer detection array. The buffer detection array is pulled by force after the fixed headband 5 is worn and provides buffering and shock absorption. The plurality of tension sensors 8 on the buffer detection array detect the wearing posture of the fixed headband 5 according to the force state and transmit the monitoring data to the control module. The control module is provided with a battery for power supply. Although existing technologies can provide some intelligent safety features, they cannot provide wearing posture reminders and shock absorption functions while ensuring the lightweightness of the helmet. Therefore, in order to ensure lightweightness, sensors and other devices are installed on the helmet to remind workers of their wearing posture and provide a certain degree of shock absorption. By connecting multiple springs 3 in the buffer detection array to each other in the hollow structure between the outer shell 1 and the inner shell 2, a plurality of springs 3 are connected to each other to form a mesh structure, and the mesh holes can be a polygonal structure, such as a hexagonal structure, or a Fig. 2The illustrated triangular and quadrilateral structures. By being connected to each other by a plurality of springs 3 and forming tension between each other, on the one hand, when the safety helmet is worn on the worker's head after being connected with the fixed headband 5, when an external object hits the safety helmet, since there is still a gap between the fixed headband 5 and the inner shell 2, the fixed headband 5 will move to one side of the inner shell 2, and the pulling action of the fixed headband 5 will pull the connected spring 3 to stretch and provide elastic force. Since the springs 3 are connected to each other, although the elastic force of a single spring 3 is small, after a plurality of springs 3 are connected to form a mesh structure, they can provide greater elastic force for buffering, so they can provide greater buffering for the safety helmet in the small hollow structure between the inner shell 2 and the outer shell 1. On the other hand, since the connection between any two springs 3 has a connection tension sensor 8, when worn, the correct wearing posture can be obtained according to the data of several tension sensors 8. Since the safety helmet needs to be worn on the worker's head through the fixed headband 5, and the fixed headband 5 is connected to the inner shell 2, and then the bottom of the fixed headband 5 is connected to the spring 3 by passing around the bottom of the inner shell 2, when the wearing is skewed, since the springs 3 in different areas are subjected to different forces, the data fed back to the control module by the tension sensors 8 in different positions can be used to determine whether the wearing posture of the safety helmet is correct, and mutual reminders can be formed among workers and adjusted among each other to make the safety helmet in the best wearing posture, which can play a better protection role.

[0021] Specifically, the fixed headband 5 includes a cap liner and a chin strap, the cap liner is connected to the inner side of the inner shell 2 at the top, and the bottom edge of the cap liner is connected to a plurality of springs 3 around, and the chin strap is connected to the cap liner; the cap liner is a semicircular hollow structure, which can make the safety helmet more breathable when worn on the worker's head, and the flexible material of the semicircular hollow structure can provide a certain buffering when impacted. After the chin strap is connected to the cap liner, when the safety helmet is worn on the worker's head, the safety helmet is fixed on the worker's head by the safety buckle on the chin strap to avoid deviation.

[0022] Further, it also includes a buzzer, which is arranged between the inner shell 2 and the outer shell 1, and the buzzer is electrically connected with the control module, and the buzzer gives an alarm when the wearing posture of the fixed headband 5 is abnormal. In addition to setting the buzzer, a small display screen can also be arranged at the rear end of the safety helmet outer shell 1, and the display screen is electrically connected with the control module. When the worker wears the safety helmet, the wearing posture of the worker is detected by the tension sensor 8, and when deviation occurs, the control module instructs the buzzer to give an alarm sound, and the specific deviation position can also be displayed on the display screen, so that the worker can make corresponding adjustments according to the displayed data to achieve the best wearing posture.

[0023] In order to ensure the accuracy of the detection results, the buffer detection array further comprises a center fixing ring 4 connected to the top center of the inner side of the shell 1, and the plurality of springs 3 are connected to the center fixing ring 4 and radially connected to each other based on the center fixing ring 4 in an embodiment. When the shell 1 is impacted, the impact force is transmitted to the center fixing ring 4 connected to the top center of the shell 1. The plurality of springs 3 connected to the center fixing ring 4 are immediately stretched because the fixed headband 5 is connected to the other end of the spring 3 through its edge, and the head and the fixed headband 5 have a tendency to remain in place under the action of inertia. The process of stretching the spring 3 is the process of absorbing the impact kinetic energy and converting it into the elastic potential energy of the spring 3. This directly reduces the impact energy transmitted to the inner shell 2 and the head.

[0024] When the impact occurs, not only the springs 3 at the direct force point are stretched, but also the adjacent springs 3 are pulled to participate in deformation. This avoids excessive concentration of impact force at a certain point, but disperses the load to a larger range of spring 3 network, further reducing the local pressure and impact strength. The design of the radial structure radiating outward from the center fixing ring 4 can effectively guide the impact force to the center point and disperse it in all directions through the spring 3 network, providing balanced buffering in multiple directions. This structure is particularly effective for oblique impact. Although the above design is mainly for linear impact, the asymmetric stretching of springs 3 in different directions formed by the network structure of the plurality of springs 3 can also generate a certain moment to offset part of the force causing the head to rotate, thereby reducing the shear damage to brain tissue caused by rotational acceleration to a certain extent.

[0025] Because the bottom of the fixed headband 5 needs to pass through the bottom of the inner shell 2 to be connected to the spring 3 between the inner shell 2 and the outer shell 1, in order to reduce the friction in the stretching movement process, in an embodiment, a swing rod 6 is further included, which is pivotally connected between the inner shell 2 and the outer shell 1, and the swing rod 6 is connected to the spring 3 and the hat liner at both ends to form a lever structure; after the fixed headband 5 is worn on the worker's head, if there is a deviation in the wearing angle, it will cause different pulling forces on the spring 3 at different positions, which will be transmitted to the spring 3 in multiple directions through the lever structure of the swing rod 6, and the data obtained by the tension sensor 8 connected to the spring 3 in multiple directions will be reminded.

[0026] Since the angle of the fixed headband 5 deviates during wearing may be small, but the protection performance will still decrease due to the wearing deviation, the deviation amount of the fixed headband 5 needs to be enlarged, so in an embodiment, the rotating connection point of the swing rod 6 is close to the side connected with the fixed headband 5; when the angle of the fixed headband 5 deviates is small, the angle of the swing rod 6 swinging is large, which can still play a pulling role on the spring 3.

[0027] In order to make the reminding effect after the safety helmet wearing deviation more intuitive, in an embodiment, a plurality of lamp beads 7 on the inner shell 2 outside at the corresponding positions of the plurality of tension sensors 8 are provided towards the side of the outer shell 1, the plurality of lamp beads 7 are electrically connected with the control module for power supply, the plurality of tension sensors 8 deviate and make the light of the lamp beads 7 penetrate the outer shell 1 for providing warning; the outer shell 1 is coated with low light-shielding paint; As shown in Fig. 2 In order to make the reminding effect after the safety helmet wearing deviation more intuitive, in an embodiment, a plurality of lamp beads 7 on the inner shell 2 outside at the corresponding positions of the plurality of tension sensors 8 are provided towards the side of the outer shell 1, the plurality of lamp beads 7 are electrically connected with the control module for power supply, the plurality of tension sensors 8 deviate and make the light of the lamp beads 7 penetrate the outer shell 1 for providing warning; the outer shell 1 is coated with low light-shielding paint;

[0028] In order to be able to quickly remind in the process of the safety helmet use, in an embodiment, a plurality of pressure sensors 9 are further included, the plurality of pressure sensors 9 are one-to-one correspondingly arranged on the plurality of tension sensors 8 and towards the side of the outer shell 1, the plurality of pressure sensors 9 are electrically connected with the control module; a signal transmission module is further included and electrically connected with the control module, the control module collects data according to the tension sensors 8 and the pressure sensors 9 and sends to the control center through the signal transmission module; the pressure sensors 9 are arranged on the tension sensors 8 and are in a state of being separated from the inner wall of the outer shell 1 in the normal state, when the impact occurs, the inner wall of the outer shell 1 will impact on the pressure sensors 9, then the data of the pressure sensors 9 will be transmitted to the control module, and the information is transmitted to the control center through the signal transmission module by the control module instruction, so that the workers of the control center can provide necessary help, to improve the safety in the construction process, and play a role of quick reminding.

[0029] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A smart helmet, characterized by: The present invention comprises an outer shell, an inner shell, a fixed headband, a buffer detection array and a control module. The inner shell is connected to the inner side of the outer shell and a hollow structure is formed between the inner shell and the outer shell. The buffer detection array comprises a plurality of springs which are interconnected to form a mesh structure. A tension sensor is provided between any two spring connection points. The plurality of tension sensors are electrically connected to the control module. The fixed headband is connected to the inner side of the inner shell. The edges of the fixed headband are connected to the plurality of springs of the buffer detection array. The buffer detection array is subjected to force and provides buffering and shock absorption after the fixed headband is worn. The plurality of tension sensors on the buffer detection array detect the wearing posture of the fixed headband according to the force state and transmit the monitoring data to the control module.

2. The smart helmet according to claim 1, characterized in that: The fixed headband includes a cap lining and a chin strap, the top of the cap lining is connected to the inner side of the inner shell, the edges around the bottom of the cap lining are connected to a plurality of the springs, and the chin strap is connected to the cap lining.

3. The smart helmet according to claim 1, characterized in that: It also includes a buzzer, which is arranged between the inner shell and the outer shell, and is electrically connected to the control module. The buzzer issues an alarm when the wearing posture of the fixed headband is abnormal.

4. The smart helmet according to claim 1, characterized in that: The buffer detection array further includes a central fixing ring connected to the center of the top inner side of the shell. A plurality of springs are connected around the central fixing ring and are radially connected and expanded based on the central fixing ring.

5. The intelligent helmet according to claim 2, characterized in that: It also includes a swing rod, which is rotatably connected between the inner shell and the outer shell. Both ends of the swing rod are respectively connected to the spring and the cap liner to form a lever structure.

6. The smart helmet according to claim 1, characterized in that: A plurality of lamp beads facing the outer shell are arranged at corresponding positions of the plurality of tension sensors on the outer side of the inner shell. The plurality of lamp beads are electrically connected to the control module for power supply. The plurality of tension sensors deviate and allow the light of the lamp beads to penetrate the outer shell to provide a warning.

7. The smart helmet according to claim 1, characterized in that: It also includes a plurality of pressure sensors, which are arranged on the tension sensor in a one-to-one correspondence and face one side of the housing, and are electrically connected to the control module.

8. The smart helmet according to claim 7, characterized in that: It also includes a signal transmission module, which is electrically connected to the control module. The control module collects data from the tension sensor and the pressure sensor and sends the data to the control center through the signal transmission module.

9. The smart helmet according to claim 5, characterized in that: The rotation connection point of the swing rod is close to the side connected to the fixed headband.

10. The smart helmet according to claim 6, characterized in that: The shell is painted with low-light-shielding paint.

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