A safety helmet for a bicycle

Abstract

The application discloses a safety helmet for a bicycle, and particularly relates to the technical field of bicycle helmets, which comprises a helmet body, a detection assembly, an executor, a neck protection assembly, the detection assembly comprises a detection cylinder arranged in the helmet body, an inertial sensing piece is arranged in the detection cylinder, a plurality of detection grooves are arranged in the circumferential side of the detection cylinder, when a rider wears the helmet and tilts, the inertial sensing piece can roll in the detection grooves through inertia; the neck protection assembly comprises an air bag arranged in the helmet body, a gas inlet of the air bag is provided with an inflation part, the executor comprises a piezoelectric part, when the rider falls down, the piezoelectric part can provide energy, so that the inflation part reacts and rapidly generates gas to make the air bag expand, nitrogen gas is generated in the inflation part by the executor when the rider falls off the bicycle, the air bag is ejected to protect the neck, so that when the sensor fails, the air bag cannot normally eject to provide effective protection for the rider.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycle helmets, more particularly, the present application relates to a safety helmet for bicycles. BACKGROUND

[0002] Falling during cycling can cause great damage to the head, even if the cyclist is riding along a smooth bicycle lane at a low speed, safety cannot be ignored, most helmets can only protect the wearer's head after an accident, prevent or reduce injury, and reduce the degree of injury to the wearer in an accident, but when the rider falls, the neck may also be injured due to the fall.

[0003] A riding helmet with a safety airbag is disclosed in Chinese patent No. 202421455307.6, which comprises a helmet body, an outer extension is arranged at the lower end of the helmet body, an installation groove is formed on the outer side of the outer extension, an airbag compartment is installed in the installation groove, an air pump compartment is installed above the airbag compartment, an air pump body is arranged in the air pump compartment, a trigger device is installed at the end of the air pump body, and an airbag bag is installed in the airbag compartment. The cooperation between the helmet body, the air pump compartment, the air pump body, the airbag compartment and the trigger device detects the change of the center of gravity of the rider through the trigger device, and then opens the air pump body to inflate the airbag in the airbag compartment, so that the airbag expands to protect the head and neck of the rider, thereby avoiding sudden conditions that can cause injury to the rider, providing protection for the safety of the rider, and reducing the risk of injury. However, the patent detects the riding state of the rider by cooperating with the power supply and the sensor, when the sensor fails, the airbag cannot be normally ejected to provide effective protection for the rider, and carrying the air pump will greatly increase the weight of the helmet, and when the rider does not wear the helmet, the helmet may be accidentally dropped, and the trigger device may misjudge and cause the airbag to open directly. What needs more attention is that similar to the prior art described above, the air pump needs a certain time to complete the inflation of the airbag; and the impact in reality often occurs in an instant, and for such a sudden and violent collision, the air pump often cannot inject enough gas into the airbag to achieve protection, resulting in unsatisfactory protection effect for the rider.

[0004] Therefore, the present application provides a safety helmet for bicycles to solve the above problems. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a safety helmet for bicycles to solve the problems raised in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A safety helmet for a bicycle, comprising: a helmet body, a detection assembly, an execution part, and a neck protection assembly, wherein the neck protection assembly comprises an air bag arranged inside the helmet body, and an inflation part is arranged at an air inlet of the air bag; the detection assembly comprises a limiting mechanism and a buffer mechanism, the limiting mechanism can prevent the neck protection assembly from being triggered by mistake when a rider does not wear the helmet, the limiting mechanism is released when the rider wears the helmet, and the buffer mechanism can prevent the neck protection assembly from being triggered by mistake when the rider tilts or slows down; and the detection assembly can make the execution part trigger the inflation part to inflate the air bag when the rider falls off the bicycle.

[0007] Preferably, the limiting mechanism comprises a detection cylinder arranged inside the helmet body and a limiting piece, an inertial sensing piece is arranged inside the detection cylinder, a limiting groove is arranged at an inner top end of the detection cylinder, the limiting piece and the detection cylinder are in sliding connection, the limiting piece can limit the inertial sensing piece by sliding and cooperating with the limiting groove, the buffer mechanism comprises a detection groove arranged inside the detection cylinder and a buffer piece, and the inertial sensing piece can displace inside the detection groove by inertia, and the buffer piece can buffer the inertial sensing piece when the inertial sensing piece hits the buffer piece.

[0008] Preferably, a second wedge-shaped block is arranged inside the helmet body, a first wedge-shaped block is fixedly connected to an end of the limiting piece away from the inertial sensing piece, and the second wedge-shaped block can extrude the first wedge-shaped block by sliding.

[0009] Preferably, a sliding groove is arranged inside the helmet body, the second wedge-shaped block is in sliding connection with the sliding groove, a second elastic piece is arranged inside the sliding groove, one end of the second elastic piece is fixedly connected to the second wedge-shaped block, the other end of the second elastic piece is fixedly connected to an inner wall of the sliding groove, and the second wedge-shaped block is two and mirror-symmetrically arranged at two ends of the sliding groove.

[0010] Preferably, a lock belt is arranged inside the helmet body, the lock belt is two and respectively fixedly connected to the second wedge-shaped blocks, the lock belt can slide inside the helmet body, and a lock belt groove for the sliding of the lock belt is arranged inside the helmet body.

[0011] Preferably, a first electrode sheet is in sliding connection inside the detection cylinder, a second electrode sheet is fixedly connected inside the detection cylinder, a first elastic piece is arranged inside the detection cylinder, one end of the first elastic piece is fixedly connected to an end of the first electrode sheet away from the second electrode sheet, and the other end of the first elastic piece is fixedly connected to an inner wall of the detection cylinder.

[0012] Preferably, the neck protection assembly further comprises an air bag compartment arranged on the helmet body, the air bag is arranged inside the air bag compartment, the outside of the air bag compartment is provided with a protective shell, the protective shell is detachably connected with the air bag compartment, and the protective shell is made of elastic material.

[0013] Preferably, the actuator comprises a power supply and a wire group, the wire group and the power supply are electrically connected, the wire group and the inflator are electrically connected, and the power supply can electrify the wire group to trigger the inflator to inflate the air bag, the first electrode sheet and the second electrode sheet are electrically connected with the power supply.

[0014] Preferably, the detection groove is a conical structure, and the buffer is arranged in a plurality of and arrayed on the side wall of the detection groove close to the bottom of the detection cylinder.

[0015] Preferably, the helmet body comprises an inner container and an outer container, the inner container is detachably connected with the outer container, the outer container is internally provided with a mounting groove for mounting the fixing member, and the sliding groove is arranged inside the inner container.

[0016] Technical effects and advantages of the present application:

[0017] 1. The present application can make the wire group trigger the inflator to inflate the air bag to protect the neck of the rider when the rider falls off the bicycle, and prevent the problem that the air bag 41 cannot be effectively ejected when the sensor fails.

[0018] 2. The present application can prevent the problem that the air bag is directly opened due to misjudgment when the helmet is accidentally dropped when the rider does not wear a helmet, by extruding the first wedge-shaped block to make the limiting member and the detection cylinder limit the inertial response member when the rider does not wear a helmet.

[0019] 3. The present application can replace the air pump by the chemical material inside the inflator to produce gas, so as to reduce the weight and the burden on the head when wearing the helmet, and prevent the problem that the air pump often fails to fill enough gas into the air bag.

[0020] 4. The present application can prevent the problem that the detection assembly misjudges to cause the air bag to be ejected when the rider normally rides and slightly tilts or slows down, by the buffer of the inertial response member to prevent the first electrode sheet and the second electrode sheet from being contacted by the inertial response member. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0022] Figure 2 It is a sectional view of the overall structure of the present application when the air bag is not opened.

[0023] Figure 3 The overall structure of the air bag is shown in the sectional view.

[0024] Figure 4 The sectional view of the sliding groove and the first wedge block is shown.

[0025] Figure 5 The A part structure of the application is shown in the enlarged view. Figure 4

[0026] Figure 6 The overall structure of the detection assembly is shown in the sectional view.

[0027] Figure 7 The helmet body is shown in the exploded view

[0028] The reference signs are as follows: 1, helmet body; 11, sliding groove; 12, second wedge block; 13, second elastic member; 14, lock belt; 15, inner bag; 16, outer bag; 2, detection assembly; 21, fixing member; 22, detection cylinder; 23, inertial sensing member; 24, detection groove; 241, buffer member; 25, limiting member; 251, first wedge block; 26, limiting mechanism; 27, buffer mechanism; 3, actuator; 31, power supply; 32, wire group; 33, first electrode sheet; 331, first elastic member; 34, second electrode sheet; 4, neck protection assembly; 41, air bag; 42, inflation part; 43, air bag compartment; 44, protection shell. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0030] Embodiment 1

[0031] In the actual production process, the neck may also be injured when the rider falls off the bike. To solve the above problems, the embodiment is invented.

[0032] Please refer to Figures 1 to 7 ​As shown, the safety helmet for bicycle of one embodiment of the present application comprises a helmet body 1, a detection assembly 2, an executor 3, a neck protection assembly 4, the neck protection assembly 4 comprises an air bag 41 arranged inside the helmet body 1, and an inflation part 42 is arranged at the air inlet of the air bag 41; the detection assembly 2 comprises a limiting mechanism 26 and a buffer mechanism 27, when the rider does not wear the helmet, the limiting mechanism 26 can prevent the neck protection assembly 4 from being triggered by mistake; when the rider wears the helmet, the limiting mechanism 26 is released, when the rider tilts slightly or slows down, the buffer mechanism 27 can prevent the neck protection assembly 4 from being triggered by mistake; when the rider falls off the bicycle, the detection assembly 2 can make the executor 3 trigger the inflation part 42 to inflate the air bag 41, the executor 3 comprises a power supply 31 and a wire group 32, the wire group 32 and the power supply 31 are electrically connected, the wire group 32 and the inflation part 42 are electrically connected, and the power supply 31 can make the wire group 32 be electrified to trigger the inflation part 42 to make the air bag 41 expand. Wherein, the inflation part 42 generates nitrogen gas through the chemical reaction of chemical materials, such as a chemical mixture mainly composed of guanidine nitrate materials, and the electrification of the wire group 32 triggers the reaction of the chemical materials in the inflation part 42, which is a prior art and will not be described in detail here.

[0033] As shown in Figure 5 and Figure 6 As shown, the limiting mechanism 26 comprises a detection cylinder 22 arranged inside the helmet body 1, the buffer mechanism 27 comprises a detection groove 24 opened inside the detection cylinder 22, the detection cylinder 22 is internally provided with an inertia sensing piece 23, when the rider wears the helmet and tilts, the inertia sensing piece 23 can roll inside the detection groove 24 through inertia, the helmet body 1 is internally provided with a fixing piece 21, the detection cylinder 22 is fixedly connected inside the fixing piece 21, the inside of the detection cylinder 22 is slidably connected with a limiting piece 25, one end of the limiting piece 25 is in contact with the inertia sensing piece 23, and the inner top end of the detection cylinder 22 is provided with a limiting groove, when the limiting piece 25 slides to the top of the detection cylinder 22 to the limit position, the limiting piece 25 can limit the inertia sensing piece 23 in cooperation with the limiting groove.

[0034] As shown in Figure 6 As shown, the detection groove 24 is a tapered structure, a plurality of buffer pieces 241 are fixedly connected on the side wall close to the bottom of the detection cylinder 22, when the inertia sensing piece 23 hits the buffer piece 241, the buffer piece 241 can buffer the inertia sensing piece 23, and the buffer pieces 241 are arranged along the side wall of the detection groove 24.

[0035] As shown in Figure 5 and Figure 6As shown, the inside of the detection cylinder 22 is slidably connected with a first electrode sheet 33, the inside of the detection cylinder 22 is fixedly connected with a second electrode sheet 34, the inside of the detection cylinder 22 is provided with a first elastic piece 331, one end of the first elastic piece 331 is fixedly connected with the end of the first electrode sheet 33 away from the second electrode sheet 34, the other end of the first elastic piece 331 is fixedly connected with the inner wall of the detection cylinder 22, and the first electrode sheet 33 and the second electrode sheet 34 are electrically connected with a power supply 31, wherein when the first electrode sheet 33 and the second electrode sheet 34 are in contact, the power supply 31 can make the wire group 32 conduct electricity, the first elastic piece 331 is a plurality of and is distributed in a circumferential array along the side wall of the first electrode sheet 33, which is a prior art and will not be described here.

[0036] As shown in Figure 4 and Figure 5 As shown, the inside of the helmet body 1 is provided with a sliding groove 11, the inside of the sliding groove 11 is slidably connected with a second wedge block 12, one end of a limiting piece 25 extends out of a fixed piece 21, one end of the limiting piece 25 extending out of the fixed piece 21 is fixedly connected with a first wedge block 251, and the second wedge block 12 can press the first wedge block 251 by sliding.

[0037] As shown in Figure 5 As shown, the inside of the sliding groove 11 is provided with a second elastic piece 13, one end of the second elastic piece 13 is fixedly connected with the second wedge block 12, and the other end of the second elastic piece 13 is fixedly connected with the inner wall of the sliding groove 11, and the second wedge block 12 is two and is mirror image arranged at both ends of the sliding groove 11.

[0038] As shown in Figure 4 As shown, the inside of the helmet body 1 is provided with a lock belt 14, the lock belt 14 is two and is respectively fixedly connected with the second wedge block 12, the lock belt 14 can slide in the inside of the helmet body 1, the inside of the helmet body 1 is provided with a lock belt groove for the sliding of the lock belt 14, the lock belt groove is matched with the lock belt 14, two lock belts 14 can be locked by pulling and sliding in the lock belt groove, and the two lock belts 14 can be locked by cooperating with each other, which is a prior art and will not be described here.

[0039] As shown in Figure 2 and Figure 3 As shown, the neck protection assembly 4 further comprises an air bag compartment 43 arranged on the helmet body 1, the air bag 41 is arranged in the air bag compartment 43, the outside of the air bag compartment 43 is provided with a protection shell 44, the protection shell 44 is clamped with the air bag compartment 43, when the protection shell 44 is elastically deformed, the clamping portion can be separated from the air bag compartment 43, which is a prior art and will not be described here.

[0040] As shown in Figure 2 and Figure 3As shown, the protective shell 44 is made of elastic material, which can be elastically deformed when the protective shell 44 is impacted. When the protective shell 44 is elastically deformed, the connection between the protective shell 44 and the airbag chamber 43 is disconnected, the protective shell 44 is disconnected from the airbag chamber 43, the airbag 41 and the airbag chamber 43 are detachably connected, the inflation part 42 is fixedly connected to the air inlet of the airbag 41. For example, the outer wall of the air inlet of the airbag 41 is connected to the airbag chamber 43 by screwing, and the outer wall of the inflation part 42 is screwed to the inner wall of the air inlet of the airbag 41. When the airbag 41 needs to be replaced, the airbag 41 and the inflation part 42 can be replaced by detaching the airbag 41 and the inflation part 42. This is a prior art, which will not be described in detail here.

[0041] As shown in Figure 5 and Figure 7 The helmet body 1 includes an inner container 15 and an outer container 16, and the inner container 15 and the outer container 16 are detachably connected to install related components. The outer container 16 is internally provided with a mounting groove for mounting the fixing member 21, and the sliding groove 11 is arranged inside the inner container 15. The detachable connection between the inner container 15 and the outer container 16 is a prior art, which will not be described in detail here. The inner container 15 is provided at the top with a relief groove for sliding the first wedge-shaped block 251.

[0042] In use, when the rider wears the helmet, the limiting piece 25 is at the lower limit position of the detection cylinder 22, when the rider normally rides and slightly tilts or slows down, the inertia sensing piece 23 slides along the side wall of the bottom of the detection groove 24 in the inside of the detection cylinder 22 due to inertia and hits the buffer piece 241, the impact force of the inertia sensing piece 23 is offset and cannot roll to the first electrode sheet 33, when the rider hits the first electrode sheet 33 due to sudden braking, since the first elastic piece 331 is arranged between the first electrode sheet 33 and the detection cylinder 22, at this time, the impact force of the inertia sensing piece 23 cannot make the first electrode sheet 33 contact the second electrode sheet 34 due to the buffering of the buffer piece 241, when the rider normally rides or parks, the riding speed is usually slow when the rider's head is greatly tilted, therefore, the impact force provided by the inertia sensing piece 23 due to inertia is insufficient to cause the first electrode sheet 33 to contact the second electrode sheet 34, when the rider falls, since the helmet has a large tilt angle when falling and slows down quickly when falling, the rolling direction of the inertia sensing piece 23 in the inside of the detection groove 24 will form a certain angle with the bottom side wall of the detection groove 24, so that the inertia sensing piece 23 is no longer in contact with the buffer piece 241, when the inertia sensing piece 23 rolls to hit the first electrode sheet 33, since the impact force of the inertia sensing piece 23 is not buffered, the inertia sensing piece 23 drives the first electrode sheet 33 to slide, so that the first elastic piece 331 on the side that is hit is stretched, so that the first electrode sheet 33 contacts the second electrode sheet 34, so that the power supply 31 can make the wire group 32 conduct electricity, so that the chemical material in the inflation part 42 reacts to release nitrogen gas to rapidly fill the air bag 41, so that the air bag 41 rapidly expands, so that the protective shell 44 elastically deforms, so that the connection between the protective shell 44 and the air bag compartment 43 is separated, so that the air bag 41 pops out of the air bag compartment 43 to protect the neck of the rider, by making the first electrode sheet 33 contact the second electrode sheet 34 when the inertia sensing piece 23 hits the first electrode sheet 33 when the rider falls, so that the wire group 32 is triggered to make the air bag 41 pop out to protect the neck of the rider, preventing the problem that the air bag 41 cannot effectively pop out when the sensor fails.

[0043] Embodiment 2

[0044] In actual use, it is found that when the rider does not wear the helmet, the helmet may accidentally fall and cause the air bag to open directly, based on the above embodiment, further improvements are made.

[0045] On the basis of the above-mentioned embodiments, in use, in the initial state, the second elastic member 13 is relaxed, so that the two second wedge blocks 12 move towards the center of the sliding groove 11, thereby pressing the first wedge block 251, so that the limiting member 25 moves upwards to the limit position inside the detection cylinder 22, thereby cooperating with the limiting groove inside the detection cylinder 22 to limit the inertial sensing member 23, so that when the helmet is not worn, the inertial sensing member 23 is fixed and cannot move inside the detection cylinder 22, when the rider wears the helmet, the two locking belts 14 are pulled tight and locked with each other, in the process of pulling the two locking belts 14, the two locking belts 14 drive the two second wedge blocks 12 to move away from the center of the sliding groove 11, thereby making the first wedge block 251 move downwards due to its own gravity, so that the limiting member 25 moves to the lower limit position of the detection cylinder 22, thereby enabling the inertial sensing member 23 to move inside the detection cylinder 22 to detect whether the rider falls, by pressing the first wedge block 251 with the two second wedge blocks 12 when the helmet is not worn, the limiting member 25 and the detection cylinder 22 limit the inertial sensing member 23, preventing the helmet from falling accidentally when the rider does not wear the helmet, which may cause the airbag 41 to open directly.

[0046] Embodiment 3

[0047] In actual use, it is found that carrying a gas pump will greatly increase the weight of the helmet, and the above-mentioned embodiments are further improved.

[0048] In use, by contacting the first electrode sheet 33 and the second electrode sheet 34, the wire group 32 is energized through the power supply 31, so that the chemical material inside the inflation part 42 reacts to generate gas to inflate the airbag 41, replacing the gas pump, which is lighter and reduces the head burden when wearing the helmet.

[0049] It should be noted that in order to be reusable, the airbag 41 and the inflation part 42 are designed to be detachable, when the airbag 41 is triggered, the airbag 41 can be disassembled, the airbag 41 and the inflation part 42 can be replaced, and the helmet can continue to be used normally.

[0050] The above-mentioned, only for the preferred specific embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled in the art of the technical personnel in the technical range disclosed by the present application, according to the technical scheme of the present application and the invention concept of the invention, equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A safety helmet for a bicycle comprising a helmet body and an actuator, characterized in that, Also include: Detection assembly and neck protection assembly; The neck protection assembly comprises an air bag arranged inside the helmet body, and an inflation part is arranged at the air inlet of the air bag; The detection assembly comprises a limiting mechanism and a buffer mechanism, the limiting mechanism can prevent the neck protection assembly from being triggered by mistake when the rider does not wear the helmet; When the rider wears the helmet, the limiting mechanism is released, and when the rider tilts or slows down, the buffer mechanism can prevent the neck protection assembly from being triggered by mistake; When the rider falls, the detection assembly can make the actuator trigger the inflation part to inflate the air bag; The limiting mechanism comprises a detection cylinder arranged inside the helmet body and a limiting piece, the inside of the detection cylinder is provided with an inertial sensing piece, the inner top end of the detection cylinder is provided with a limiting groove, the limiting piece and the detection cylinder are slidingly connected, the limiting piece can limit the inertial sensing piece by sliding and cooperating with the limiting groove, the buffer mechanism comprises a detection groove opened in the detection cylinder and a buffer piece, the inertial sensing piece can displace in the detection groove by inertia, and when the inertial sensing piece hits the buffer piece, the buffer piece can buffer the inertial sensing piece; The inside of the detection cylinder is slidingly connected with a first electrode sheet, the inside of the detection cylinder is fixedly connected with a second electrode sheet, the inside of the detection cylinder is provided with a first elastic piece, one end of the first elastic piece is fixedly connected with the end of the first electrode sheet away from the second electrode sheet, and the other end of the first elastic piece is fixedly connected with the inner wall of the detection cylinder; When the rider normally rides with slight tilting or slowing down, the inertial sensing piece slides along the side wall of the detection groove in the detection cylinder due to inertia and hits the buffer piece, the impact force of the inertial sensing piece is offset and cannot roll to the first electrode sheet, when the rider hits the first electrode sheet due to sudden braking, the first elastic piece is arranged between the first electrode sheet and the detection cylinder, the impact force of the inertial sensing piece cannot make the first electrode sheet contact with the second electrode sheet due to the buffering of the buffer piece, when the rider tilts the head greatly, the riding speed is usually slow, the impact force provided by the inertial sensing piece due to inertia is insufficient, and the first electrode sheet cannot contact with the second electrode sheet, when the rider falls, the helmet tilts at a large angle and slows down quickly when falling, the rolling direction of the inertial sensing piece in the detection groove due to inertia will form a certain angle with the side wall of the bottom of the detection groove, so that the inertial sensing piece no longer contacts with the buffer piece; The detection groove is a tapered structure, and the buffer piece is a plurality of and arrayed on the side wall of the detection groove close to the bottom of the detection cylinder.

2. The safety helmet of claim 1, wherein: A second wedge-shaped block is arranged inside the helmet body, a first wedge-shaped block is fixedly connected to the end of the limiting piece away from the inertial sensing piece, and the second wedge-shaped block can slide and press the first wedge-shaped block.

3. The safety helmet of claim 2, wherein: A sliding groove is opened in the helmet body, the second wedge-shaped block is slidingly connected with the sliding groove, a second elastic piece is arranged in the inside of the sliding groove, one end of the second elastic piece is fixedly connected with the second wedge-shaped block, and the other end of the second elastic piece is fixedly connected with the inner wall of the sliding groove, and the second wedge-shaped block is two and mirror image arranged at both ends of the sliding groove.

4. The safety helmet of claim 3, wherein: The inside of the helmet body is provided with a lock belt, the lock belt is two and is fixedly connected with the second wedge block respectively, the lock belt can slide in the inside of the helmet body, and the inside of the helmet body is provided with a lock belt slot for the sliding of the lock belt.

5. The safety helmet of claim 4, wherein: The neck protection assembly further comprises an air bag compartment arranged on the helmet body, the air bag is arranged in the air bag compartment, the outside of the air bag compartment is provided with a protection shell, the protection shell is detachably connected with the air bag compartment, and the protection shell is made of elastic material.

6. The safety helmet of claim 5, wherein: The executor comprises a power supply and a wire group, the wire group and the power supply are electrically connected, the wire group and the inflation part are electrically connected, and the power supply can electrify the wire group to trigger the inflation part to make the air bag expand, and the first electrode sheet and the second electrode sheet are electrically connected with the power supply.

7. The safety helmet of claim 6, wherein: The helmet body comprises an inner container and an outer container, the inner container is detachably connected with the outer container, the inside of the outer container is provided with a mounting slot for mounting the fixing part, and the sliding slot is arranged in the inside of the inner container.

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