阅读说明：本技术 一种电力专用安全帽 (Special safety helmet of electric power ) 是由 王维良 于 2020-08-03 设计创作，主要内容包括：本发明涉及安全帽技术领域,尤其是一种电力专用安全帽,包括帽壳,帽壳内部设有头箍,帽壳一端设有固定盒,头箍一端固定于固定盒内部,头箍另一端通过伸缩机构活动连接于固定盒内部,固定盒内部固定有限位机构,并且固定盒一侧设有进风管,进风管内部通过支撑机构固定连接有电机,电机的输出轴末端固定连接有扇叶,进风管与固定盒内部相连通,固定盒顶面固定有接收头,接收头顶部固定连接有送风带,送风带底面开设有多个透气孔,接收头分别与送风带、固定盒内部相连通,送风带底部交叉布置有支撑带,支撑带两端固定于头箍外壁表面,该装置通过电机的带动扇叶转动,产生气流对佩戴者进行风吹降温,防止佩戴者流汗,造成触电。(The invention relates to the technical field of safety helmets, in particular to a safety helmet special for electric power, which comprises a helmet shell, wherein a head hoop is arranged inside the helmet shell, one end of the helmet shell is provided with a fixed box, one end of the head hoop is fixed inside the fixed box, the other end of the head hoop is movably connected inside the fixed box through a telescopic mechanism, a limiting mechanism is fixed inside the fixed box, one side of the fixed box is provided with an air inlet pipe, the inside of the air inlet pipe is fixedly connected with a motor through a supporting mechanism, the tail end of an output shaft of the motor is fixedly connected with fan blades, the air inlet pipe is communicated with the inside of the fixed box, the top surface of the fixed box is fixedly provided with a receiving head, the top of the receiving head is fixedly connected with an air supply belt, the bottom of the air supply belt is provided with a plurality of air holes, the receiving head is respectively communicated with, the air flow is generated to blow and cool the wearer, so that the wearer is prevented from sweating and electric shock.)

1. The utility model provides a special safety helmet of electric power, includes the cap shell, its characterized in that: the hat is characterized in that an outwardly convex brim is fixed on the bottom surface of the hat shell, a head hoop is arranged inside the hat shell, the periphery of the head hoop is fixedly connected inside the hat shell through a fixing mechanism, a fixing box is arranged at one end of the hat shell, one end of the head hoop is fixed inside the fixing box, the other end of the head hoop is movably connected inside the fixing box through a telescopic mechanism, a limiting mechanism is fixed inside the fixing box, an air inlet pipe is arranged on one side of the fixing box, a motor is fixedly connected inside the air inlet pipe through a supporting mechanism, fan blades are fixedly connected at the tail end of an output shaft of the motor, the air inlet pipe is communicated with the inside of the fixing box, a receiving head is fixed on the top surface of the fixing box, an air supply belt is fixedly connected at the top of the receiving head, a plurality of air holes are formed in the bottom surface of the air supply belt, the receiving, the support belt is fixed on the surface of the outer wall of the head hoop at two ends, the battery box is fixed on the inner wall of the fixed box, the switch is arranged on the outer side of the fixed box, and the battery box, the switch and the motor are connected through wires.

2. An electric power dedicated safety helmet according to claim 1, characterized in that: the telescopic mechanism comprises a rack arranged inside the fixed box, the side wall of the rack is abutted to the inner wall of the fixed box, a screw is movably connected to one side of the rack and penetrates through the outer wall of the fixed box and extends out, the screw is fixedly connected with the outer wall of the fixed box through threads, the other side of the rack is abutted to a head hoop, a plurality of teeth are fixed on the head hoop and the rack, and the teeth are abutted to each other.

3. An electric power dedicated safety helmet according to claim 2, characterized in that: the limiting mechanism comprises two limiting plates fixed inside the fixed box, the limiting plates are arranged on two sides of the head band, and one of the limiting plates is parallel to the rack.

4. An electric power dedicated safety helmet according to claim 3, characterized in that: the fixing mechanism comprises a plurality of fixing blocks fixed on the inner wall of the helmet shell, an upward convex fixing strip is arranged at the top of each fixing block, a corresponding fixing piece is sleeved on the outer side of each fixing strip, the fixing piece is fixed at the top of the head hoop, an embedding hole is formed in the side wall of each fixing piece, and the fixing strips are arranged inside the embedding holes.

5. An electric power dedicated safety helmet according to claim 4, characterized in that: the supporting mechanism comprises a plurality of fixing columns fixed on the inner wall of the air inlet pipe, one end of each fixing column is fixedly connected with a fixing ring, and the fixing rings are fixed on the outer side of the motor.

6. An electric power dedicated safety helmet according to claim 5, characterized in that: the left side and the right side of the lower part of the helmet shell are respectively provided with a shoulder supporting arm, the shoulder supporting arms comprise an upper arm rod, a lower arm rod and an arc-shaped shoulder clamping fixer, the upper end of the upper arm rod is fixed on the helmet shell, and the lower end of the upper arm rod is hinged with the lower arm rod through a damping hinge shaft; the lower arm rod is a rod body which can be stretched and changed in length; the lower end of the lower arm rod is connected with an arc shoulder clamping fixer;

the arc shoulder clamping fixator comprises a fixed arc plate and a movable arc plate, wherein the fixed arc plate comprises a front arc plate, a middle arc plate and a rear arc plate; the upper side of the middle part of the middle arc plate is fixed at the lower end of the lower arm rod; an arc plate jack extending upwards into the lower arm rod is arranged below the middle arc plate; the movable arc plate is arranged below the middle arc plate, the upper side of the middle part of the movable arc plate is provided with an arc plate inserting rod, and the arc plate inserting rod is upwards inserted into the arc plate inserting hole; the middle part of the lower side surface of the middle arc plate is provided with a movable arc plate embedding hole, and when the arc plate insertion rod moves upwards along the arc plate insertion hole to the upper limit, the movable arc plate can be completely accommodated in the movable arc plate embedding hole;

the front arc plate and the rear arc plate are respectively butted with the middle arc plate at the front side and the rear side; a first front tension spring hole and a second front tension spring hole which correspond to each other are respectively formed in the butt joint surface of the front arc plate and the middle arc plate, a front tension plate is arranged in the second front tension spring hole, the front end of the front tension plate is connected with the bottom of the first front tension spring hole through a front tension spring, a front guide bar hole penetrating through the lower side of the front end of the middle arc plate is formed in the rear of the second front tension spring hole, an arc-shaped front guide bar rod is arranged in the front guide bar hole, the front end of the front guide bar is fixedly connected to the rear side of the front tension plate, and the rear end of the front guide bar is connected with the upper side of the front end of the movable arc plate; a first rear tension spring hole and a second rear tension spring hole which correspond to each other are respectively formed in the butt joint surface of the rear arc plate and the middle arc plate, a rear tension plate is arranged in the second rear tension spring hole, the rear end of the rear tension plate is connected with the bottom of the first rear tension spring hole through a rear tension spring, a rear guide bar hole penetrating through the lower side of the rear end of the middle arc plate is formed in the front of the second rear tension spring hole, an arc-shaped rear guide bar rod is arranged in the rear guide bar hole, the rear end of the rear guide bar rod is connected and fixed to the front side of the rear tension plate, and the front end of the rear guide bar rod is connected with the upper side of the rear end of the movable arc plate;

the lower side surfaces of the front arc plate and the rear arc plate are provided with anti-skid silica gel layers;

when the cap shell and the arc shoulder clamping fixer are impacted by external force on the upper portion or the oblique upper portion, the cap shell and the arc shoulder clamping fixer are pressed down simultaneously, the movable arc plate is extruded upwards by the shoulders on the two sides, the movable arc plate can be completely accommodated into the embedded hole of the movable arc plate, the front arc plate and the rear arc plate respectively extend out towards the front side and the rear side under the driving of the front guide bar and the rear guide bar, and the shoulders are clamped on the front side and the rear side.

7. An electric power dedicated safety helmet according to claim 6, characterized in that: the cap shell is provided with an outer shell, the outer shell is divided into a plurality of arc-shaped or melon-shaped split bodies along an outer bus, and gaps are not connected among the split bodies and are formed; the upper ends of the split bodies are upwarped and can be enclosed to form a hollow cone with an upward tip; a cap shell safety air bag device is arranged in the hollow conical body and the cap shell at the lower part of the hollow conical body.

8. An electric power dedicated safety helmet according to claim 7, characterized in that: each arc sheet-shaped split body comprises a hard shell layer, an outer adhesive layer, a first foaming plastic layer, an easily-detached adhesive layer, a second foaming plastic layer and an inner adhesive layer from inside to outside, wherein the hard shell layer is tightly attached to the first foaming plastic layer through the outer adhesive layer, and the second foaming plastic layer is tightly attached and fixed to the outside of the cap shell through the inner adhesive layer; the utility model discloses a cap shell, including first foaming plastic layer and second foaming plastic layer, the viscose layer that easily drops bonds between first foaming plastic layer and the second foaming plastic layer through easily taking off the viscose layer bonding, when receiving the external force impact on upper portion or oblique upper portion, the portion that drops that crust layer, outer viscose layer and first foaming plastic layer are constituteed, the portion that drops can tear easily and drop the viscose layer under the impact force effect, drops from the outside of second foaming plastic layer or cap shell.

9. An electric power dedicated safety helmet according to claim 8, characterized in that: the inner wall of the first foaming plastic layer is provided with a plurality of L-shaped hooks, the outer wall of the second foaming plastic layer is correspondingly provided with a plurality of L-shaped hook holes, the hooks can be inserted into one ends of the hook hole cross arms, and a tightening spring is arranged between the hooks and the hook holes.

10. An electric power dedicated safety helmet according to claim 9, characterized in that: the cap shell safety airbag device comprises a trigger bolt, a truncated cone-shaped hollow inflating bin and more than three airbag flushing bodies; the upper part and the lower part of the hollow inflating bin are respectively provided with an upper top plate and a lower bottom plate, the middle part of the upper top plate is provided with a bolt insertion hole, the trigger bolt comprises a round hammer-shaped bolt cap and a bolt rod, the bolt rod is arranged at the lower part of the bolt cap, the lower end of the bolt rod is inserted into the bolt insertion hole, and a top spring is sleeved on the bolt rod between the bolt cap and the upper top plate; an air bag gas generator is arranged at the bottom of the bolt jack;

the top end of the cap shell is provided with a top installation hole, the periphery of the top installation hole is provided with a mounting ring, and the mounting ring and the lower end of the hollow inflating bin are connected and fixed into a whole; the lower bottom plate is provided with a plurality of inflation holes, the lower part of each inflation hole is connected with an inflation air bag, and the inflation air bags are in a triangular or arc shape with upward tips when in a fully inflated state; a lifting sleeve with an open lower end is arranged below the middle part of the lower bottom surface, a lifting column is inserted into the lifting sleeve, the lower end of the lifting column is connected with a spherical crown-shaped top plate, an air bag extension guide channel is formed between the spherical crown-shaped top plate and the inner wall of the cap shell, and the bag body of each inflatable air bag is arranged in the air bag extension guide channel;

before the external force is not applied or the applied external force does not reach the preset value, the lower end of the bolt rod is not contacted with the gas generator of the air bag; when the top of the head is subjected to an external force exceeding a preset value, the trigger bolt can be inserted into the bottom of the bolt insertion hole to trigger the airbag gas generator, generated gas can rapidly enter the hollow inflating bin and enter each inflating airbag through the inflating hole, and the inflating airbags are inflated and expanded and stretch to wrap the head along the airbag stretching guide channel.

Technical Field

The invention relates to the field of safety helmets, in particular to a safety helmet special for electric power.

Background

The safety helmet is a hat which can protect the head of a person from being hurt by falling objects and other specific factors. However, the conventional safety helmet for electric power has poor internal air permeability, and is easy for a user to sweat and electric shock during electric power work after long-term use.

In addition, if the safety helmet is impacted, the skull and the cervical vertebra mainly bear the impact, the existing safety helmet cannot resist the injury of large impact force to a human body, cannot offset or transfer the stress, and cannot play a role in protecting the safety of a user.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a safety helmet special for electric power, which can improve the use comfort and protect a user from being injured by offsetting or transferring the impact stress.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a safety helmet special for electric power comprises a helmet shell, wherein an outward convex brim is fixed on the bottom surface of the helmet shell, a head hoop is arranged inside the helmet shell, the periphery of the head hoop is fixedly connected inside the helmet shell through a fixing mechanism, one end of the helmet shell is provided with a fixing box, one end of the head hoop is fixed inside the fixing box, the other end of the head hoop is movably connected inside the fixing box through a telescopic mechanism, a limiting mechanism is fixed inside the fixing box, an air inlet pipe is arranged on one side of the fixing box, a motor is fixedly connected inside the air inlet pipe through a supporting mechanism, fan blades are fixedly connected to the tail end of an output shaft of the motor, the air inlet pipe is communicated with the inside of the fixing box, a receiving head is fixed on the top surface of the fixing box, an air supply belt is fixedly connected to the top of the receiving head, a plurality of air holes are formed in the bottom surface of the air, the air supply device is characterized in that supporting belts are arranged at the bottom of the air supply belt in a crossed mode, two ends of each supporting belt are fixed on the outer wall surface of the head hoop, a battery box is fixed on the inner wall of the fixing box, a switch is arranged on the outer side of the fixing box, and the battery box, the switch and the motor are connected through conducting wires.

Preferably, the telescopic mechanism comprises a rack arranged inside the fixed box, the side wall of the rack abuts against the inner wall of the fixed box, a screw is movably connected to one side of the rack, the screw penetrates through the outer wall of the fixed box and extends out, the screw is fixedly connected with the outer wall of the fixed box through threads, the other side of the rack abuts against the head band, a plurality of teeth are fixed on the head band and the rack, and the adjacent teeth abut against each other.

Preferably, the limiting mechanism comprises two limiting plates fixed inside the fixing box, the limiting plates are arranged on two sides of the head band, and one of the limiting plates is parallel to the rack.

Preferably, the fixing mechanism comprises a plurality of fixing blocks fixed on the inner wall of the helmet shell, an upward convex fixing strip is arranged at the top of each fixing block, a corresponding fixing piece is sleeved on the outer side of each fixing strip, the fixing piece is fixed at the top of the head hoop, an embedding hole is formed in the side wall of the fixing piece, and the fixing strips are arranged inside the embedding holes.

Preferably, the supporting mechanism comprises a plurality of fixing columns fixed on the inner wall of the air inlet pipe, one end of each fixing column is fixedly connected with a fixing ring, and the fixing rings are fixed on the outer side of the motor.

Preferably, the left side and the right side of the lower part of the helmet shell are respectively provided with a shoulder supporting arm, the shoulder supporting arms comprise an upper arm rod, a lower arm rod and an arc-shaped shoulder clamping fixer, the upper end of the upper arm rod is fixed on the helmet shell, and the lower end of the upper arm rod is hinged with the lower arm rod through a damping hinge shaft; the lower arm rod is a rod body which can be stretched and changed in length; the lower end of the lower arm rod is connected with an arc shoulder clamping fixer;

the arc shoulder clamping fixator comprises a fixed arc plate and a movable arc plate, wherein the fixed arc plate comprises a front arc plate, a middle arc plate and a rear arc plate; the upper side of the middle part of the middle arc plate is fixed at the lower end of the lower arm rod, and an arc plate jack extending upwards into the lower arm rod is arranged below the middle arc plate; the movable arc plate is arranged below the middle arc plate, the upper side of the middle part of the movable arc plate is provided with an arc plate inserting rod, and the arc plate inserting rod is upwards inserted into the arc plate inserting hole; the middle part of the lower side surface of the middle arc plate is provided with a movable arc plate embedding hole, and when the arc plate insertion rod moves upwards along the arc plate insertion hole to the upper limit, the movable arc plate can be completely accommodated in the movable arc plate embedding hole;

the front arc plate and the rear arc plate are respectively butted with the middle arc plate at the front side and the rear side; a first front tension spring hole and a second front tension spring hole which correspond to each other are respectively formed in the butt joint surface of the front arc plate and the middle arc plate, a front tension plate is arranged in the second front tension spring hole, the front end of the front tension plate is connected with the bottom of the first front tension spring hole through a front tension spring, a front guide bar hole penetrating through the lower side of the front end of the middle arc plate is formed in the rear of the second front tension spring hole, an arc-shaped front guide bar rod is arranged in the front guide bar hole, the front end of the front guide bar is fixedly connected to the rear side of the front tension plate, and the rear end of the front guide bar is connected with the upper side of the front end of the movable arc plate; a first rear tension spring hole and a second rear tension spring hole which correspond to each other are respectively formed in the butt joint surface of the rear arc plate and the middle arc plate, a rear tension plate is arranged in the second rear tension spring hole, the rear end of the rear tension plate is connected with the bottom of the first rear tension spring hole through a rear tension spring, a rear guide bar hole penetrating through the lower side of the rear end of the middle arc plate is formed in the front of the second rear tension spring hole, an arc-shaped rear guide bar rod is arranged in the rear guide bar hole, the rear end of the rear guide bar rod is connected and fixed to the front side of the rear tension plate, and the front end of the rear guide bar rod is connected with the upper side of the rear end of the movable arc plate;

the lower side surfaces of the front arc plate and the rear arc plate are provided with anti-skid silica gel layers;

when the cap shell and the arc shoulder clamping fixer are impacted by external force on the upper portion or the oblique upper portion, the cap shell and the arc shoulder clamping fixer are pressed down simultaneously, the movable arc plate is extruded upwards by the shoulders on the two sides, the movable arc plate can be completely accommodated into the embedded hole of the movable arc plate, the front arc plate and the rear arc plate respectively extend out towards the front side and the rear side under the driving of the front guide bar and the rear guide bar, and the shoulders are clamped on the front side and the rear side.

Preferably, an outer shell is arranged outside the cap shell, the outer shell is divided into a plurality of arc-shaped or melon-shaped split bodies along an outer bus, and the split bodies are not connected and provided with gaps; the upper ends of the split bodies are upwarped and can be enclosed to form a hollow cone with an upward tip; a cap shell safety air bag device is arranged in the hollow conical body and the cap shell at the lower part of the hollow conical body.

Preferably, each arc sheet-shaped split body comprises a hard shell layer, an outer adhesive layer, a first foamed plastic layer, an easily-released adhesive layer, a second foamed plastic layer and an inner adhesive layer from inside to outside, the hard shell layer is tightly attached to the first foamed plastic layer through the outer adhesive layer, and the second foamed plastic layer is tightly attached and fixed to the outside of the cap shell through the inner adhesive layer; the utility model discloses a cap shell, including first foaming plastic layer and second foaming plastic layer, the viscose layer that easily drops bonds between first foaming plastic layer and the second foaming plastic layer through easily taking off the viscose layer bonding, when receiving the external force impact on upper portion or oblique upper portion, the portion that drops that crust layer, outer viscose layer and first foaming plastic layer are constituteed, the portion that drops can tear easily and drop the viscose layer under the impact force effect, drops from the outside of second foaming plastic layer or cap shell.

Preferably, a plurality of L-shaped hooks are arranged on the inner wall of the first foaming plastic layer, a plurality of L-shaped hook holes are correspondingly formed in the outer wall of the second foaming plastic layer, the hooks can be inserted into one ends of the hook hole cross arms, and abutting springs are arranged between the hooks and the hook holes.

Preferably, the cap shell airbag device comprises a trigger bolt, a truncated cone-shaped hollow inflating bin and more than three airbag flushing bodies; the upper part and the lower part of the hollow inflating bin are respectively provided with an upper top plate and a lower bottom plate, the middle part of the upper top plate is provided with a bolt insertion hole, the trigger bolt comprises a round hammer-shaped bolt cap and a bolt rod, the bolt rod is arranged at the lower part of the bolt cap, the lower end of the bolt rod is inserted into the bolt insertion hole, and a top spring is sleeved on the bolt rod between the bolt cap and the upper top plate; an air bag gas generator is arranged at the bottom of the bolt jack;

the top end of the cap shell is provided with a top installation hole, the periphery of the top installation hole is provided with a mounting ring, and the mounting ring and the lower end of the hollow inflating bin are connected and fixed into a whole; the lower bottom plate is provided with a plurality of inflation holes, the lower part of each inflation hole is connected with an inflation air bag, and the inflation air bags are in a triangular or arc shape with upward tips when in a fully inflated state; a lifting sleeve with an open lower end is arranged below the middle part of the lower bottom surface, a lifting column is inserted into the lifting sleeve, the lower end of the lifting column is connected with a spherical crown-shaped top plate, an air bag extension guide channel is formed between the spherical crown-shaped top plate and the inner wall of the cap shell, and the bag body of each inflatable air bag is arranged in the air bag extension guide channel;

before the external force is not applied or the applied external force does not reach the preset value, the lower end of the bolt rod is not contacted with the gas generator of the air bag; when the top of the head is subjected to an external force exceeding a preset value, the trigger bolt can be inserted into the bottom of the bolt insertion hole to trigger the airbag gas generator, generated gas can rapidly enter the hollow inflating bin and enter each inflating airbag through the inflating hole, and the inflating airbags are inflated and expanded and stretch to wrap the head along the airbag stretching guide channel.

Compared with the prior art, the invention has the following beneficial effects:

1. the device is when using, wears the cap shell overhead, through press the switch, and the starter motor drives the flabellum through the output shaft of motor and rotates to inside the fixed box of absorption outside air entering, the air current is along receiving first inner wall rebound, gets into the air supply and takes inside, and flows from the bleeder vent of air supply area bottom surface, carries out the forced air cooling to the person of wearing, prevents that the person of wearing from sweating, causes the electric shock.

2. The device is provided with an arc shoulder clamping fixer through a shoulder supporting arm under a cap shell, under the normal use state, the arc shoulder clamping fixer keeps a distance of 1-3cm with the shoulder of a user, and the distance can be controlled and adjusted by adjusting the length of a lower arm rod. The head of the user can rotate or pitch more flexibly by setting the distance, and sweat is not easy to accumulate due to shoulder ventilation.

When the cap shell and the arc shoulder clamping fixer are impacted by external force on the upper portion or the oblique upper portion, the cap shell and the arc shoulder clamping fixer are pressed down simultaneously, the movable arc plate is extruded upwards by the shoulders on the two sides, the movable arc plate can be completely accommodated into the embedded hole of the movable arc plate, the front arc plate and the rear arc plate respectively extend out towards the front side and the rear side under the driving of the front guide bar and the rear guide bar, and the shoulders are clamped on the front side and the rear side. In order to enable the cap shell and the arc shoulder clamping and fixing device to move downwards under stress, the air supply belt or the receiving head can be made to have certain telescopic elasticity, and then or the end part of the air supply belt is connected with the receiving head through the silica gel pipe body with elastic plastic force, so that the cap shell and the arc shoulder clamping and fixing device have certain shrinkage allowance under a wearing state and the cervical vertebra is prevented from being damaged.

3. The safety airbag device of the helmet shell is arranged in the helmet shell of the safety airbag device, and the lower end of the bolt rod is not contacted with the airbag gas generator before external force is not applied or the applied external force does not reach a preset value; when external force impact is received, the arc shoulder clamping and fixing device can clamp and fix the shoulders of a user and plays a role in supporting the helmet shell; meanwhile, if the impact force is from the falling object at high altitude, the falling object will impact the split body peeling off the outer shell, and the impact force is absorbed and offset by the separating action of the split body and the cap shell. If the impact force reaches a preset value, the trigger bolt overcomes the preset force of the top spring, the bolt body is inserted into the bottom of the bolt insertion hole and triggers the airbag gas generator, the inflation gas fills the hollow inflation bin and enters each inflation airbag through the inflation hole, and the inflation airbag inflates and expands and stretches along the airbag stretching guide channel to wrap the head. Because of the existence of the bag extending guide channel, the inflated air bag can not cause impact injury to the head in the helmet shell, but extends along the arc-shaped gap between the helmet shell and the head until the head is completely wrapped, thereby playing a sufficient protection role.

4. The device has reasonable structural design and convenient use, is suitable for batch production and is popularized and popularized in the industry.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

FIG. 2 is an overall cross-sectional view of a first embodiment of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic perspective view of a second embodiment of the present invention;

FIG. 5 is a schematic front view of a second embodiment of the present invention;

FIG. 6 is a schematic view of the arcuate shoulder gripping fixture;

FIG. 7 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 8 is an enlarged view of portion B of FIG. 7;

FIG. 9 is a schematic view showing the mounting structure of the cap housing airbag device;

FIG. 10 is an enlarged view of the portion C of FIG. 7 (example four);

FIG. 11 is a partial cross-sectional view of an arc segment split body in accordance with the fifth embodiment.

In the figure: 1. a cap shell; 2. a brim; 3. a head band; 4. a fixing sheet; 5. an insertion hole; 6. a fixing strip; 7. a fixed block; 8. a support band; 9. a wind supply belt; 10. a receiving head; 11. a fixing box; 12. an air inlet pipe; 13. a fixing ring; 14. fixing a column; 15. a motor; 16. a fan blade; 17. a screw; 18. a battery case; 19. a rack; 20. teeth; 21. a limiting plate; 22. a push switch; 23. an upper arm lever; 24. a lower arm lever; 25. the arc shoulder clamps the anchor; 26. an arc plate jack; 27. inserting a rod through an arc plate; 28. a middle arc plate; 29. the movable arc plate is embedded with the hole; 30. a first foamed plastic layer; 31. a front arc plate; 32. an anti-slip silica gel layer; 33. a front tension spring; 34. a first front tension spring hole; 35. a second front tension spring hole; 36. a front pulling plate; 37. a front guide bar hole; 38. a front guide bar; 39. a movable arc plate; 40. a rear guide bar; 41. a rear guide bar hole; 42. a back pulling plate; 43. a second rear tension spring hole; 44. a first rear tension spring hole; 45. a rear tension spring; 46. a rear arc plate; 47. a bonnet airbag assembly; 48. splitting; 49. inserting holes for bolts; 50. an inflation hole; 51. an inflatable air bag; 52. an air bag extension guide passage; 53. a spherical crown shaped top plate; 54. a lifting column; 55. a lifting sleeve; 56. a mounting ring; 57. a lower base plate; 58. a hollow inflating bin; 59. a top mounting hole; 60. an air bag gas generator; 61. an upper top plate; 62. a bolt rod; 63. a bolt cap; 64. a spring is supported; 65. a hard shell layer; 66. an outer adhesive layer; 67. the adhesive layer is easy to fall off; 68. a second foamed plastic layer; 69. an inner adhesive layer; 70. the spring is tightly propped; 71. hooking; 72. and (4) hook holes.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.