CN105816937B - Scalp remaining needle protection buckle cover - Google Patents

Abstract

The invention relates to a protective buckle cover for scalp indwelling needles, which belongs to the technical field of medical appliances. The technical scheme of the present invention is: a scalp indwelling needle protective buckle cover, including a protective cover, an anti-collision warning device is arranged on the upper side of the protective cover, a warning speaker is arranged on the front side of the anti-collision warning device, and a speaker protective cover is arranged on the front side of the warning speaker , There is a music data interface on the right side of the warning speaker, a warning device control switch on the right side of the anti-collision warning device, and a warning reset button on the lower side of the warning control switch. The invention has the advantages of simple structure and convenient use, effectively preventing the scalp indwelling needle from being affected by scraping, and at the same time ensuring the safe use of the scalp indwelling needle for children, reducing the work intensity of nursing staff and improving the work efficiency.

Description

Scalp indwelling needle protective buckle cover

technical field

The invention belongs to the technical field of medical appliances, in particular to a protective buckle cover for scalp indwelling needles.

Background technique

In recent years, venous indwelling needles have been favored by patients and nurses in clinical infusion, especially in pediatrics. For children, it can reduce the pain caused by repeated puncture and ease the worries of parents. Venous indwelling needle, also known as trocar, has the characteristics of simple operation, soft cannula, long indwelling time of cannula in the vein and not easy to penetrate blood vessels. Blood can be collected through the indwelling needle before, during and after the infusion. It reduces the workload of nurses, facilitates the input of various drugs, has simple, intuitive, and low-cost operations, reduces the number of punctures, avoids the pain caused by repeated punctures to patients, protects the punctured veins, and improves the work efficiency of nurses. In the current use of pediatric scalp indwelling needles, there are also the following shortcomings: because the pediatric scalp indwelling needle is exposed on the scalp of the child, the child will accidentally touch the indwelling needle when playing and sleeping, causing injury to himself. pain.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a scalp indwelling needle protective buckle cover which is simple in structure and convenient to use, can prevent the scalp indwelling needle from being scratched, and ensure the safe use of the indwelling needle.

The technical scheme of the present invention is: a scalp indwelling needle protective buckle cover, including a protective cover, an anti-collision warning device is arranged on the upper side of the protective cover, a warning speaker is arranged on the front side of the anti-collision warning device, and a speaker protective cover is arranged on the front side of the warning speaker , There is a music data interface on the right side of the warning speaker, a warning device control switch on the right side of the anti-collision warning device, a warning reset button on the lower side of the warning control switch, and a music playback control switch on the left side of the anti-collision warning device. The lower side of the control switch is provided with a volume adjustment knob, the lower side of the anti-collision warning device is provided with an anti-collision infrared sensor, the rear side of the anti-collision infrared sensor is connected through the anti-collision sensor fixing seat and the protective cover, and the upper side of the anti-collision infrared sensor is provided with a transmission signal The rear side of the transmission signal line is provided with a wire fixing groove, and the front side of the anti-collision infrared sensor is provided with a sensor protective cover;

There is a power supply box on the left side of the protective cover, a lithium battery module is arranged in the power supply box, a power supply box cover is arranged on the left side of the power supply box, a charger is arranged on the lower side of the power supply box, a charging interface is arranged on the front side of the charger, and a charging interface is arranged inside the charging interface. There is a rubber protective plug, a charging indicator light is arranged on the upper side of the charging interface, a power control switch is arranged on the front side of the power supply box, a working indicator light is arranged on the upper side of the power control switch, and an indwelling needle fixing chute is arranged on the lower side of the protective cover. The front side of the fixed chute is provided with a sliding protection cover, and the rear side of the sliding protection cover is connected by the moving slider of the cover and the fixed chute of the indwelling needle. A needle body moving slider is arranged in the groove, a needle body slider fixing buckle is arranged on the right side of the needle body moving slider, and an indwelling needle fixing holder is arranged on the left side of the needle body moving slider;

There is an indwelling needle fixing groove on the upper side of the indwelling needle fixing holder, an indwelling needle anti-slip pad is arranged in the indwelling needle fixing groove, an indwelling needle fixing splint is arranged on the upper side of the indwelling needle fixing groove, and the right side of the indwelling needle fixing splint passes through the splint The connecting shaft is connected with the indwelling needle fixing groove, the underside of the indwelling needle fixing splint is provided with a splint protection pad, the left side of the indwelling needle fixing splint is provided with a splint fixing buckle, and the lower side of the splint fixing buckle is fixed by the splint locking connector and the indwelling needle Groove connection, the left side of the splint latching connector is provided with a splint latching release button;

The upper side of the indwelling needle fixing chute is provided with a medicine tube fixing chute, a medicine tube moving slider is arranged in the medicine tube fixing chute, a medicine tube slider fixing buckle is arranged on the front side of the medicine tube moving slider, and the medicine tube moving slider The left side is provided with a drug tube fixing card seat;

There is a medicine tube fixing groove on the upper side of the medicine tube fixing holder, and an electric constant temperature heater is arranged in the medicine tube fixing groove. Heating temperature sensor, the upper side of the medicine tube fixing groove is provided with a medicine tube fixing splint, the right side of the medicine tube fixing splint is connected with the medicine tube fixing groove through the medicine tube splint connecting shaft, and the medicine tube fixing splint is provided with a medicine tube protective pad on the lower side , the left side of the medicine tube fixing splint is provided with a medicine tube splint fixing buckle, the lower side of the medicine tube splint fixing buckle is connected with the medicine tube fixing groove through the medicine tube locking connector, and the medicine tube locking release button is arranged on the left side of the medicine tube locking connector , a medicine tube heating controller is arranged on the right side of the medicine tube fixing holder, a temperature display screen is arranged on the upper side of the medicine tube heating controller, and a heating control switch is arranged on the front side of the medicine tube heating controller;

The underside of the indwelling needle fixing chute is provided with a guard fixing belt, the left side of the guard fixing belt is provided with an elastic fixing belt, the elastic fixing belt is connected with the guard fixing belt through the elastic belt fixing connector, and the left side of the elastic fixing belt is provided with a length Adjusting bar, the length adjusting bar is connected by the adjusting bar fixing connector and the elastic fixing belt, the length adjusting slot is provided on the outside of the length adjusting bar, the length adjusting bar is provided on the left side of the length adjusting bar, and the length adjusting shaft is provided on the left side of the length adjusting bar , the length adjustment shaft is connected by the adjustment shaft fastener and the length adjuster, the length adjustment dial is arranged on the left side of the length adjustment shaft, the fixed headband is arranged on the lower side of the guard fixing belt, and the headband connecting frame is arranged on the upper side of the fixed headband , the lower side of the headband connection frame is provided with a headband adjustment shaft, the upper side of the headband connection frame is provided with a headband fixing connector, the headband fixing connector is connected through the headband connection shaft and the shield fixing belt, and the lower side of the fixed headband is connected. A sliding length adjuster is provided, and a sliding protection pad is arranged on the lower side of the sliding length regulator.

A decoration fixing seat is arranged on the upper side of the anti-collision warning device.

A warning indicator light is arranged on the left side of the warning speaker.

The outer side of the music data interface is provided with a rubber protective cover.

An undervoltage indicator light is provided on the right side of the working indicator light.

The right side of the medicine tube heating controller is provided with a temperature adjustment knob.

The inner side of the shield fixing belt is provided with a head protection cushion.

The outside of the length adjustment turntable is provided with adjustment anti-skid lines.

The beneficial effects of the invention are as follows: the invention has a simple structure and is easy to use, effectively preventing the scalp indwelling needle from being affected by scratches, and at the same time ensuring the safe use of the scalp indwelling needle for children, reducing the work intensity of the nursing staff and improving the work efficiency. efficiency.

Description of drawings

1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic structural diagram of the indwelling needle fixing holder of the present invention.

FIG. 3 is a schematic structural diagram of the medicine tube fixing card holder of the present invention.

In the picture:

1: Protective cover, 2: Anti-collision warning device, 3: Warning speaker, 4: Speaker protective cover, 5: Music data interface, 6: Warning device control switch, 7: Warning reset button, 8: Music playback control switch, 9 : Volume adjustment knob, 10: Anti-collision infrared sensor, 11: Anti-collision sensor holder, 12: Transmission signal cable, 13: Wire fixing groove, 14: Sensor shield, 15: Power box, 16: Lithium battery module, 17: Power box cover, 18: Charger, 19: Charging interface, 20: Rubber protective plug, 21: Charging indicator light, 22: Power control switch, 23: Working indicator light, 24: Indwelling needle fixing chute, 25: Sliding protective cover, 26: Shield moving slider, 27: Shield slider fixing buckle, 28: Needle body moving slider, 29: Needle body slider fixing buckle, 30: Indwelling needle fixing socket, 31: Indwelling needle Fixing groove, 32: Indwelling needle anti-slip pad, 33: Indwelling needle fixing splint, 34: Splint connecting shaft, 35: Splint protection pad, 36: Splint fixing buckle, 37: Splint locking connector, 38: Splint locking release button , 39: Drug tube fixing chute, 40: Drug tube moving slider, 41: Drug tube slider fixing buckle, 42: Drug tube fixing clip, 43: Drug tube fixing groove, 44: Electric constant temperature heater, 45 : Anti-slip heating pad for drug tube, 46: Heating temperature sensor, 47: Drug tube fixing splint, 48: Drug tube splint connecting shaft, 49: Drug tube protective pad, 50: Drug tube splint fixing buckle, 51: Drug tube locking connector , 52: Drug tube lock release button, 53: Drug tube heating controller, 54: Temperature display, 55: Heating control switch, 56: Shield fixing strap, 57: Elastic fixing strap, 58: Elastic strap fixing connector, 59: Length Adjustment Bar, 60: Adjustment Bar Fixing Connector, 61: Length Adjustment Card Slot, 62: Length Adjuster, 63: Length Adjustment Shaft, 64: Adjustment Shaft Fastener, 65: Length Adjustment Turntable, 66: Fixed Headband, 67: Headband Attachment Frame, 68: Headband Adjustment Shaft, 69: Headband Fixing Connector, 70: Headband Attachment Shaft, 71: Sliding Length Adjuster, 72: Sliding Pad, 73: Pad Sliding Sleeve, 74: Flexible Protective Pad, 75: Decoration Holder, 76: Warning Indicator, 77: Rubber Protective Cover, 78: Undervoltage Indicator, 79: Temperature Adjustment Knob, 80: Head Protection Pad, 81 : Adjust the anti-skid pattern.

Detailed ways

Hereinafter, referring to the accompanying drawings, the scalp indwelling needle protective buckle cover of the present invention will be described in detail.

As shown in FIG. 1, the scalp indwelling needle protective buckle cover of the present invention includes a protective cover 1, an anti-collision warning device 2 is arranged on the upper side of the protective cover 1, and a warning speaker 3 is arranged on the front side of the anti-collision warning device 2. The warning speaker 3 The front side is provided with a speaker protective cover 4, the right side of the warning speaker 3 is provided with a music data interface 5, the right side of the anti-collision warning device 2 is provided with a warning device control switch 6, and the lower side of the warning control switch 6 is provided with a warning reset button 7, The left side of the anti-collision warning device 2 is provided with a music playback control switch 8, the lower side of the music playback control switch 8 is provided with a volume adjustment knob 9, the lower side of the anti-collision warning device 2 is provided with an anti-collision infrared sensor 10, The side is connected with the protective cover 1 through the anti-collision sensor fixing seat 11, the anti-collision infrared sensor 10 is provided with a transmission signal line 12 on the upper side, the rear side of the transmission signal line 12 is provided with a wire fixing groove 13, and the front side of the anti-collision infrared sensor 10 is provided with There is a sensor shield 14.

As shown in FIG. 1 , a power supply box 15 is arranged on the left side of the protective cover 1 , a lithium battery module 16 is arranged in the power supply box 15 , a power supply box cover 17 is arranged on the front side of the power supply box 15 , and a charger 18 is arranged on the lower side of the power supply box 15 , the front side of the charger 18 is provided with a charging interface 19, the charging interface 19 is provided with a rubber protective plug 20, the upper side of the charging interface 19 is provided with a charging indicator light 21, the front side of the power box 15 is provided with a power control switch 22, the power control switch 22 The upper side is provided with a working indicator light 23, the lower side of the protective cover 1 is provided with an indwelling needle fixing chute 24, the front side of the indwelling needle fixing chute 24 is provided with a sliding protective cover 25, and the rear side of the sliding protective cover 25 moves through the protective cover. The block 26 is connected with the indwelling needle fixing chute 24, the front side of the shield moving slider 26 is provided with a shield sliding block fixing buckle 27, the indwelling needle fixing chute 24 is provided with a needle body moving slider 28, and the needle body moves the slider The needle body slider fixing buckle 29 is arranged on the right side of the 28 , and the indwelling needle fixing holder 30 is arranged at the left side of the needle body moving slider 28 .

As shown in FIG. 2 , an indwelling needle fixing groove 31 is arranged on the upper side of the indwelling needle fixing holder 30 , an indwelling needle anti-slip pad 32 is arranged in the indwelling needle fixing groove 31 , and an indwelling needle is arranged on the upper side of the indwelling needle fixing groove 31 Fixing splint 33, the right side of the indwelling needle fixing splint 33 is connected to the indwelling needle fixing groove 31 through the splint connecting shaft 34, the underside of the indwelling needle fixing splint 33 is provided with a splint protection pad 35, and the left side of the indwelling needle fixing splint 33 is provided with a splint for fixing Buckle 36, the lower side of the splint fixing buckle 36 is connected with the indwelling needle fixing groove 31 through the splint locking connector 37, and the left side of the splint locking connector 37 is provided with a splint locking release button 38.

As shown in FIG. 1 , the upper side of the indwelling needle fixing chute 24 is provided with a medicine tube fixing chute 39 , the medicine tube fixing chute 39 is provided with a medicine tube moving slider 40 , and the medicine tube moving slider 40 is provided with a medicine tube on the front side. The tube slider fixing buckle 41 is provided with a medicine tube fixing socket 42 on the left side of the medicine tube moving slider 40 .

As shown in FIG. 3 , a medicine tube fixing groove 43 is arranged on the upper side of the medicine tube fixing holder 42 , an electric constant temperature heater 44 is arranged in the medicine tube fixing groove 43 , and a medicine tube anti-skid is arranged on the upper side of the electric constant temperature heater 44 The heating pad 45, the anti-skid heating pad 45 of the medicine tube is provided with a heating temperature sensor 46 on the upper side, the medicine tube fixing splint 47 is arranged on the upper side of the medicine tube fixing groove 43, and the right side of the medicine tube fixing splint 47 is connected by the medicine tube splint. The medicine tube fixing groove 43 is connected, the medicine tube fixing splint 47 is provided with a medicine tube protective pad 49 on the lower side, the medicine tube splint fixing buckle 50 is arranged on the left side of the medicine tube fixing splint 47, and the medicine tube splint fixing buckle 50 passes through the medicine tube on the lower side. The locking connector 51 is connected with the medicine tube fixing groove 43, the medicine tube locking release button 52 is arranged on the left side of the medicine tube locking connector 51, and the medicine tube heating controller 53 is arranged on the right side of the medicine tube fixing socket 42, and the medicine tube is heated The upper side of the controller 53 is provided with a temperature display screen 54 , and the front side of the medicine tube heating controller 53 is provided with a heating control switch 55 .

As shown in FIG. 1 , a shield fixing band 56 is provided on the lower side of the indwelling needle fixing chute 24 , and an elastic fixing band 57 is arranged on the left side of the shield fixing band 56 , and the elastic fixing band 57 fixes the connector 58 and the shield through the elastic band. The fixing belt 56 is connected, the elastic fixing belt 57 is provided with a length adjusting strip 59 on the left side, the length adjusting strip 59 is connected with the elastic fixing belt 57 through the adjusting strip fixing connector 60, and the length adjusting slot 61 is arranged on the outside of the length adjusting strip 59. The left side of the adjustment bar 59 is provided with a length adjuster 62, the left side of the length adjuster 62 is provided with a length adjustment shaft 63, the length adjustment shaft 63 is connected with the length adjuster 62 through the adjustment shaft fastener 64, and the left side of the length adjustment There is a length adjustment turntable 65, a fixed headband 66 is arranged on the lower side of the shield fixing belt 56, a headband connecting frame 67 is arranged on the upper side of the fixed headband 66, and a headband adjusting shaft 68 is arranged on the lower side of the headband connecting frame 67. The upper side of the belt connecting frame 67 is provided with a headband fixing connector 69. The headband fixing connector 69 is connected with the shield fixing belt 56 through the headband connecting shaft 70. The lower side of the length adjuster 71 is provided with a sliding protection pad 72 , the lower side of the sliding protection pad 72 is connected with the fixed headband 66 through the pad sliding sleeve 73 , and the upper side of the sliding protection pad 72 is provided with a flexible protection pad 74 .

When in use, the protective cover 1 is placed on the head of the patient, and the length adjustment dial 65 is rotated to operate. The protective cover 1 is assisted to fix, and the length of the fixed headband 66 can be adjusted by adjusting the sliding length adjuster 71, so that the protective cover 1 can be tightly fixed on the head of the patient, and the sliding protective pad 72 can be used to fix the protective cover 1. Protect the lower jaw of the patient.

Open the needle body slider fixing buckle 29, the indwelling needle fixing bracket 30 can be slidably adjusted to the indwelling needle position through the needle body moving slider 28 and the indwelling needle fixing chute 24, and the indwelling needle fixing splint 33 and the indwelling needle fixing recess can be slid The groove 31 can effectively fix the indwelling needle. Open the cover slider fixing buckle 27, and the sliding protection cover 25 can be slidably adjusted to the outside of the indwelling needle fixing holder 30 through the cover moving slider 26 and the indwelling needle fixing chute 24. In order to effectively protect the indwelling needle, open the medicine tube slider fixing buckle 41, and the medicine tube fixing bracket 42 can be slid and adjusted to the position of the medicine tube through the medicine tube moving slider 40 and the medicine tube fixing chute 39. The tube fixing splint 47 can effectively fix the medicine tube, turn on the heating control switch 55, and the medicine tube heating controller 53 can control the electric constant temperature heater 44 to heat the medicine tube at a constant temperature, so as to prevent the medicine liquid with large temperature difference from causing irritation to the child , the heating temperature sensor 46 can detect the heating temperature and display it in real time through the temperature display screen 54, so that the medical staff can grasp the temperature change of the medicinal solution at any time.

Turn on the warning device control switch 6, and the anti-collision warning device 2 can perform anti-collision warning. When the anti-collision infrared sensor 10 detects an obstacle, the warning speaker 3 can give a warning in time to prevent a collision. Press the warning reset button 7 or When you are away from the obstacle, you can stop the warning reminder, turn on the music playback control switch 8, and play the children's favorite songs through the warning speaker 3, which is conducive to allowing the children to cooperate with the treatment. adjust.

A decoration fixing seat 75 is provided on the upper side of the anti-collision warning device 2 . In this way, it is convenient to install decorations on the upper side of the anti-collision warning device 2, which can effectively attract the interest of children and cooperate with the treatment.

A warning indicator light 76 is provided on the left side of the warning speaker 3 . With this setting, a flash warning can be issued before a collision occurs.

A rubber protective cover 77 is provided on the outside of the music data interface 5 . In this way, the music data interface 5 can be protected to prevent sundries from entering.

An undervoltage indicator light 78 is provided on the right side of the working indicator light 23 . In this way, the undervoltage indication can be performed when the power of the lithium battery module 16 is insufficient.

A temperature adjustment knob 79 is provided on the right side of the medicine tube heating controller 53 . With this setting, the heating temperature can be flexibly adjusted as required.

A head protection cushion 80 is provided on the inner side of the shield fixing belt 56 . In this way, the head can be protected when it is fixed.

The outside of the length adjustment turntable 65 is provided with an adjustment anti-skid pattern 81 . With this arrangement, the hand can be prevented from slipping when the length adjustment dial 65 is operated.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made. These improvements and replacements It should also be regarded as the protection scope of the present invention.

Claims (1)

1. scalp remaining needle protection buckle cover, including shield (1), it is characterised in that: be equipped with anti-collision on the upside of shield (1) and warn Device (2), anti-collision attention device (2) front side are equipped with alarm speakers (3), loudspeaker shield are equipped on front side of alarm speakers (3) (4), music data interface (5) are equipped on the right side of alarm speakers (3), attention device control switch is equipped on the right side of anti-collision attention device (2) (6), it is equipped with warning reset button (7) on the downside of warning control switch (6), is equipped with music on the left of anti-collision attention device (2) and controls It switchs (8), is equipped with volume adjustment knob (9) on the downside of music control switch (8), anti-collision is equipped on the downside of anti-collision attention device (2) Infrared sensor (10), anti-collision infrared sensor (10) rear side are connected by anti-bump sensor fixing seat (11) and shield (1), Transmission signal line (12) are equipped on the upside of anti-collision infrared sensor (10), conducting wire fixed groove is equipped on rear side of transmission signal line (12) (13), sensor protective shield (14) are equipped on front side of anti-collision infrared sensor (10)；Power pack (15) are equipped on the left of shield (1), Lithium battery module (16) are equipped in power pack (15), are equipped with power supply box cover (17) on the left of power pack (15), on the downside of power pack (15) Equipped with charger (18), charging interface (19) are equipped on front side of charger (18), preventing rubber plug is equipped in charging interface (19) (20), charging indicator light (21) are equipped on the upside of charging interface (19), are equipped with power control switch (22) on front side of power pack (15), electricity Work light (23) are equipped on the upside of source control switch (22), are equipped with remaining needle fixed chute (24) on the downside of shield (1), indwelling Be equipped with sliding protective cover (25) on front side of needle fixed chute (24), on rear side of sliding protective cover (25) by shield movement sliding block (26) and Remaining needle fixed chute (24) connection, shield are equipped with shield sliding block fixing buckle (27) on front side of mobile sliding block (26), and remaining needle is fixed It is mobile sliding block (28) that needle body is equipped in sliding slot (24), needle body is equipped with needle body sliding block fixing buckle (29), needle on the right side of mobile sliding block (28) Body is equipped with remaining needle Fixing clamp-seat (30) on the left of mobile sliding block (28)；

Remaining needle fixed groove (31) are equipped on the upside of remaining needle Fixing clamp-seat (30), indwelling is equipped in remaining needle fixed groove (31) Needle non-slip mat (32), remaining needle fixed groove (31) upside are equipped with remaining needle strap (33), remaining needle strap (33) Right side is connected by clamping plate connection shaft (34) and remaining needle fixed groove (31), and folder is equipped on the downside of remaining needle strap (33) Plate protective pad (35), remaining needle strap (33) left side are equipped with Boards wall buckle (36), and Boards wall buckles on the downside of (36) It is connected by clamping plate latching connector (37) and remaining needle fixed groove (31), clamping plate is equipped on the left of clamping plate latching connector (37) Latch release button (38)；

Pencil fixed chute (39) are equipped on the upside of remaining needle fixed chute (24), it is mobile that pencil is equipped in pencil fixed chute (39) Sliding block (40), pencil mobile sliding block (40) front side are equipped with pencil sliding block fixing buckle (41), and pencil is equipped on the left of mobile sliding block (40) Pencil Fixing clamp-seat (42)；Pencil fixed groove (43) are equipped on the upside of pencil Fixing clamp-seat (42), in pencil fixed groove (43) Equipped with electric thermostat heater (44), it is equipped with the anti-skidding heating cushion of pencil (45) on the upside of electric thermostat heater (44), pencil is anti-skidding Heating temperature sensor (46) are equipped on the upside of heating cushion (45), pencil strap is equipped on the upside of pencil fixed groove (43) (47), pass through pencil clamping plate connection shaft (48) and pencil fixed groove (43) connection, pencil on the right side of pencil strap (47) Pencil protective pad (49) are equipped on the downside of strap (47), pencil Boards wall button is equipped on the left of pencil strap (47) (50), it is connected on the downside of pencil Boards wall button (50) by pencil latching connector (51) and pencil fixed groove (43), pencil Pencil latch release button (52) are equipped on the left of latching connector (51), pencil heating control is equipped on the right side of pencil Fixing clamp-seat (42) Device (53) processed, pencil heating controller (53) upside are equipped with temperature display (54), are equipped on front side of pencil heating controller (53) Computer heating control switchs (55)；

Shield fixing belt (56) are equipped on the downside of remaining needle fixed chute (24), elastic reducing-fixing band is equipped on the left of shield fixing belt (56) (57), elastic reducing-fixing band (57) is connected by elastic webbing fixed connection device (58) and shield fixing belt (56), elastic reducing-fixing band (57) left side is equipped with length adjustment item (59), and length adjustment item (59) passes through adjustment bar fixed connection device (60) and elastic reducing-fixing band (57) it connects, is equipped with length adjustment card slot (61) on the outside of length adjustment item (59), length tune is equipped on the left of length adjustment item (59) It saves device (62), is equipped with length adjustment shaft (63) on the left of length adjuster (62), length adjustment shaft (63) is by adjusting shaft Fastener (64) and length adjuster (62) connection, length adjustment shaft (63) left side are equipped with length adjustment turntable (65), shield Fixing head band (66) are equipped on the downside of fixing belt (56), are equipped with headband connection frame (67) on the upside of fixing head band (66), headband connection frame (67) downside is equipped with headband and adjusts shaft (68), is equipped with headband fixed connection device (69) on the upside of headband connection frame (67), headband is solid Determine connector (69) to connect by headband connection shaft (70) and shield fixing belt (56), sliding is equipped on the downside of fixing head band (66) Length adjuster (71), sliding length adjuster (71) downside are equipped with sliding neonychium (72), lead on the downside of sliding neonychium (72) Protection pad sliding sleeve (73) and fixing head band (66) connection are crossed, is equipped with flexible protective pad (74) on the upside of sliding neonychium (72).