CN112190392A

CN112190392A - Welding helmet

Info

Publication number: CN112190392A
Application number: CN202010958113.8A
Authority: CN
Inventors: 李晓伟; 许云飞; 许哲
Original assignee: Nanjing Xurong Product Design Co ltd
Current assignee: Nanjing Xurong Product Design Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-01-08

Abstract

The invention discloses a welding helmet which comprises a helmet shell, wherein a head hoop is arranged in the helmet shell, a window is arranged at the front part of the helmet shell, a protective neck ring is arranged at the lower side of the helmet shell, a fresh air channel is arranged in the helmet shell, an air outlet of the fresh air channel is positioned at the front side position in the helmet shell, an air inlet of the fresh air channel extends out of the rear part of the helmet shell, and an air inlet of the fresh air channel is connected with a fresh air system through a ventilation hose. The invention has the advantages of providing cold air for cleaning and relieving the fatigue of a wearer.

Description

Welding helmet

Technical Field

The invention relates to the technical field of welding equipment, in particular to a welding helmet.

Background

With the development of scientific technology, the intellectualization of products becomes a trend, and the helmet has wide application range, such as medical treatment, welding, building, outdoor sports and the like, and can play a good role in protecting the head and reducing injuries. Welding helmets are commonly used in the mechanical and industrial fields to protect welders from harmful radiation emitted by the welding arc and from spatter, sparks and particles that may be expelled from the welding area. Welding helmets are typically capable of being suspended on a wearer's head so that the wearer's hands can be used to weld and process workpieces.

Disclosure of Invention

The invention provides a welding helmet which has the advantages that cold air for cleaning can be provided, and fatigue of a wearer is relieved.

The welding helmet comprises a helmet shell, a head hoop is arranged inside the helmet shell, a window is arranged at the front part of the helmet shell, a protective neck ring is arranged on the lower side of the helmet shell, a fresh air channel is arranged in the helmet shell, an air outlet of the fresh air channel is located at the front side position inside the helmet shell, an air inlet of the fresh air channel extends out of the rear part of the helmet shell, and an air inlet of the fresh air channel is connected with a fresh air system through a ventilation hose.

The fresh air system further comprises a fresh air shell, an evaporation chamber and a heat dissipation chamber are arranged in the fresh air shell, an air inlet is formed in one side of the evaporation chamber, a fresh air port is formed in the other side of the evaporation chamber, the fresh air port is connected with an air inlet of a fresh air channel through a ventilation hose, an air inlet fan is arranged at the air inlet, an evaporator is arranged in the evaporation chamber, a condenser and a compressor are arranged in the heat dissipation chamber, the compressor is used for compressing a refrigerant flowing out of the condenser and then conveying the refrigerant to the evaporator to form circulation, the heat dissipation chamber is further provided with a heat dissipation fan, and a plurality.

The invention is further provided that the fresh air inlet is connected with an air filter.

The invention is further arranged that the bottom of the compressor is provided with a shock pad.

In conclusion, the beneficial effects of the invention are as follows:

1. can provide cold air for cleaning and relieve the fatigue of the wearer;

2. the eyes of the wearer can be protected by the automatic light-changing screen.

Drawings

Fig. 1 is a side schematic view of the helmet shell of the present embodiment;

FIG. 2 is a top schematic view of the helmet shell of the present embodiment;

fig. 3 is a bottom schematic view of the helmet shell of the present embodiment;

fig. 4 is an exploded view of the fresh air system in the present embodiment;

fig. 5 is a schematic diagram of a communication system in the present embodiment;

fig. 6 is a schematic diagram of the communication system and the health detection system in the present embodiment.

In the figure, 1, a helmet shell; 2. a head band; 3. a window; 4. a protective collar; 5. an illuminating lamp; 6. a camera; 7. a fresh air housing; 71. a shell bin; 72. a cover plate; 73. an evaporation chamber; 74. a heat dissipation chamber; 8. an evaporator; 9. a condenser; 10. a compressor; 11. a copper pipe; 12. a gas-liquid separator; 13. drying the filter; 14. a shock pad; 15. a ventilation hose; 16. a fresh air channel; 17. a heat radiation fan; 18. and (4) heat dissipation holes.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

Example (b): referring to fig. 1 to 6, an intelligent welding helmet comprises a helmet shell 1, wherein the helmet shell 1 adopts a curved surface design conforming to the head of a human body, so that the helmet shell 1 can protect the head of the human body. Helmet shell 1 is inside to be equipped with head band 2, and head band 2 is used for fixing helmet shell 1 at the head, and head band 2 adopts integrated into one piece's injection molding, and head band 2's elasticity is adjustable, and 2 rear sides of head band adopt two rack formula structures and knob clearance fit to be connected, adjust head band 2's elasticity during the rotating knob, guarantee effectively or be suitable for and use crowd to wear the travelling comfort. The head band 2 and two side surfaces of the shell are fixedly locked by positioning studs with square steps, and the head band 2 and the shell are effectively fastened and positioned. A protective neck ring 4 is arranged at the lower side of the helmet shell 1; the neck ring is used for protecting the neck of a wearer, and the protective neck ring 4 is connected with the helmet shell 1 by a detachable zipper.

The front part of the helmet shell 1 is provided with a window 3, the window 3 is provided with an automatic light-changing screen, and the automatic light-changing screen adopts a 3M Speedglas series automatic light-changing screen provided by 3M Chinese Limited company. The working principle of the automatic light-changing electric welding mask is that liquid crystal is used as a shading lens, a detector on the lens is used for detecting the generation and disappearance of arc light during electric welding, and the liquid crystal is driven by electric power to shade and change color grade, so that the aim of protecting harmful light is fulfilled. The automatic light-changing screen is different from traditional passive light-shading lens made of various additives and pigments, and is formed from liquid crystal, electronic circuit, solar cell panel/battery, sensor and UV-ray and infrared filter. When a welding arc occurs, the liquid crystal is instantly triggered to darken, ultraviolet rays and infrared rays are reflected, appropriate visible light is projected to the fundus, and light transmission is reduced to an appropriate degree. The adjusting knob of the automatic light-changing screen is arranged on the side surface of the helmet shell 1 and used for adjusting the light shading mode of the automatic light-changing screen. The shading mode of the automatic light-changing screen comprises a flat light function, a polishing function and an electric welding and welding filtering function, wherein the flat light function is suitable for being used when the automatic light-changing screen is used for walking or temporarily stopping working and resting; the polishing function is suitable for polishing a welding area or when flying dust is large, so that an operator is effectively protected from sucking or flying into the body; the electric welding filtering function is suitable for filtering strong light during electric welding so as to avoid injuring the eyes and skin of an operator.

Be equipped with new trend passageway 16 in helmet shell 1, the air outlet of new trend passageway 16 is located the inside front side position of helmet shell 1, and the air intake of new trend passageway 16 stretches out from helmet shell 1's rear portion, and the air intake of new trend passageway 16 is connected with new trend system through ventilation hose 15. The new trend system includes new trend shell 7, include evaporating chamber 73 and radiating chamber 74 in the new trend shell 7, evaporating chamber 73 one side is equipped with the air admission mouth, the opposite side is equipped with the fresh air inlet, the fresh air inlet is connected with air cleaner, the fresh air inlet passes through ventilation hose 15 and fresh air channel 16's air intake connection, the air admission department is equipped with air intake fan, be equipped with evaporimeter 8 in the evaporating chamber 73, compressor 10 is used for carrying the refrigerant compression that the condenser 9 flows out after to evaporimeter 8 formation circulation, the bottom of compressor 10 is equipped with shock pad 14, radiating chamber 74 still is equipped with radiating fan 17, the outer wall of radiating chamber 74 is equipped with a plurality of louvres 18. When the compressor 10 works, heat in the evaporator 8 can be continuously brought to the condenser 9 to be dissipated, and the temperature of the evaporation chamber 73 is reduced, so that cold air is blown out from the fresh air port, is filtered by the air filter and then is blown into the helmet shell 1 through the ventilation hose 15 and the fresh air channel 16, fresh cold air is brought to a wearer, and the work fatigue of the wearer is relieved.

The fresh air shell 7 comprises a shell bin 71 with an opening on one side and a cover plate 72 for sealing the shell bin 71, heat dissipation holes 18 are formed in the positions, located in the heat dissipation chamber 74, of the shell bin 71 and the cover plate 72, and the heat generated by the condenser 9 is taken out of the fresh air shell 7 when the heat dissipation fan 17 works. The air temperature of the refrigerant after heat dissipation in the condenser 9 is reduced, the air pressure is reduced, the compressor 10 compresses the low-temperature and low-pressure refrigerant medium into a high-temperature and high-pressure state and conveys the refrigerant medium into the evaporation chamber 73, the air temperature of the refrigerant in the evaporation chamber 73 is reduced, the air temperature is reduced, heat is absorbed, and the temperature in the evaporation chamber 73 is reduced, so that the purpose of refrigeration is achieved. The evaporator 8, the condenser 9 and the compressor 10 are all connected through a copper pipe 11, and the copper pipe 11 is further provided with a gas-liquid separator 12 and a drying filter 13. The bottom of the compressor 10 is provided with a shock pad 14 to alleviate vibration generated when the compressor 10 operates.

In some embodiments of the invention, the power on the helmet shell 1 may be supplied by a cable, which is arranged alongside the ventilation hose 15.

The welding-only helmet in the embodiment of the invention further comprises a processor, a communication system, a health detection system, a multimedia system and a battery, wherein the communication system, the health detection system and the multimedia system are all connected with the processor, and the battery supplies power to the processor, the communication system, the health detection system and the multimedia system.

The processor can select a microcomputer for processing data, and the battery can select a lithium battery for supplying power to the devices.

The communication system comprises a Bluetooth communication module and an NB-iot module, wherein the Bluetooth communication module is connected with the processor and is used for communicating with terminal equipment, typically terminal equipment such as a mobile phone, and the Bluetooth communication module can be used for communicating with the mobile phone. The NB-iot module is coupled to the processor and is configured to communicate with another server. The NB-iot module is connected to a serial port of a main control chip of the processor, the main control chip controls the NB-iot module through an AT instruction, data are transmitted to a server through a wide area network, programs are written in the server, body temperature and heart rate data are processed, a plurality of alarm levels can be set, and when the body temperature or the heart rate is not in a normal range, an alarm is given according to the corresponding alarm levels, such as sending a short message, making a call and notifying and the like. NB-iot has been incorporated into the 5G standard, becoming a core component in a 5G mMTC (massive Internet of things connection) scenario. In 2015, the ITU has formally released a vision requirement of 5G, which specifies that the 5G must support three major scenarios of enhanced mobile communications (eMBB), low latency high reliability (urrllc) and massive internet of things connectivity (mtc). The core requirement of the 5G mtc scenario is that the connection density reaches 100 ten thousand device connections per square kilometer, and reports submitted by a plurality of companies and organizations show: NB-IoT can achieve this requirement.

The health detection system comprises one or more of a body temperature sensor, a heart rate sensor, a blood oxygen sensor and an electric quantity monitoring module, wherein the body temperature sensor is arranged at the forehead part of the helmet shell 1 and used for detecting the body temperature of a wearer, the body temperature sensor adopts a 503ET-87L thermistor, the resistor is in contact with the skin of a human body and is connected to an ADC (analog to digital converter) interface of a processor main control chip, the processor main control chip continuously reads the resistance value of the thermistor through the ADC, relevant codes are compiled according to an R-T (radio-temperature) table provided by a manufacturer to calculate a temperature value, and the error is not more than 0.1. The ADC is an analog-to-digital converter of the main control chip, the main control chip can only process digital signals but can not directly process analog signals, and the analog quantity can be read to the resistor only by converting the analog quantity into the digital quantity by means of the ADC. The heart rate sensor is arranged at the forehead of the helmet shell 1 and used for detecting the heart rate of a wearer, the heart rate sensor adopts an HX3313 optical heart rate sensor and comprises an optical signal transmitter and a receiver, the transmitter transmits green light to the skin of a person through an LED, the receiver receives light reflected back from the skin of the person, due to the fact that the heart beats, capillary constriction and blood flow can be caused, reflected light can be influenced by the blood constriction and the blood flow to change, the heart rate can be obtained by calculating the change rate, the detection is performed every 200 milliseconds, the accuracy is high, and the error per minute does not exceed one time. HX3313 has a 20-bit high-precision ADC built in, and communicates with the main control chip using an I2C interface. The main control chip can send command codes to the HX3313 through the I2C interface to control the sensor and obtain the data of the sensor. The blood oxygen sensor is arranged at the forehead part of the helmet shell 1 and is used for detecting the blood oxygen concentration of a wearer, and the electric quantity detection module is used for electrically detecting the residual electric quantity of the battery.

The multimedia system comprises an earphone and a microphone, the earphone is arranged at the ear part of the helmet shell 1, the microphone is arranged at the cheek part of the helmet shell 1, and the earphone and the microphone are both connected with the processor. The data of the earphone and the microphone can be communicated with the outside through the communication module.

The top of the helmet shell 1 is provided with an illuminating lamp 5 and a camera 6, and the illuminating lamp 5 and the camera 6 are both powered by a battery and connected with a processor.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The utility model provides a welding helmet, a serial communication port, including helmet shell (1), helmet shell (1) inside is equipped with head hoop (2), the front portion of helmet shell (1) is equipped with window (3), the downside of helmet shell (1) is equipped with protective collar (4), be equipped with fresh air channel (16) in helmet shell (1), the air outlet of fresh air channel (16) is located the inside front side position of helmet shell (1), the air intake of fresh air channel (16) stretches out from the rear portion of helmet shell (1), the air intake of fresh air channel (16) is connected with the new trend system through ventilation hose (15).

2. The welding helmet according to claim 1, wherein the fresh air system comprises a fresh air shell (7), the fresh air shell (7) comprises an evaporation chamber (73) and a heat dissipation chamber (74), an air inlet is formed in one side of the evaporation chamber (73), a fresh air port is formed in the other side of the evaporation chamber (73), the fresh air port is connected with an air inlet of the fresh air channel (16) through a ventilation hose (15), an air inlet fan is arranged at the air inlet, an evaporator (8) is arranged in the evaporation chamber (73), a condenser (9) and a compressor (10) are arranged in the heat dissipation chamber (74), the compressor (10) is used for compressing a refrigerant flowing out of the condenser (9) and then conveying the refrigerant to the evaporator (8) to form a circulation, the heat dissipation chamber (74) is further provided with a heat dissipation fan (17), and a plurality of heat dissipation holes.

3. The welding helmet of claim 1, wherein an air filter is coupled to the fresh air opening.

4. Welding helmet according to claim 1, characterized in that the bottom of the compressor (10) is provided with a shock pad (14).