A clear view welding helmet

Abstract

The utility model relates to a kind of electric welding mask of clear observation in labor protection equipment technical field, and fixed frame is arranged around observation window, and driving assembly for driving optical filter to move up and down is matched and arranged in fixed frame;Driving assembly includes driving shaft and driven shaft, and two synchronous belts are arranged between two shafts;Optical filter four corners are fixedly connected with two synchronous belts respectively, and driving shaft is transmission-connected with steering wheel, and cleaning scraper is fixedly connected between the front side of two synchronous belts, and scraper blade part and the front side surface of protective sheet are sliding contact;Photosensitive switch is installed on front panel, and sound control switch is also provided below photosensitive switch, and single-chip microcontroller controller is arranged in fixed frame.The electric welding mask can no longer manually control the switching of optical filter, and is more convenient to use;It also has lens self-cleaning function, and is convenient for clear observation welding condition.

Description

Technical Field

[0001] This utility model belongs to the field of labor protection equipment technology, specifically relating to a welding mask that allows for clear observation. Background Technology

[0002] Welding helmets are the most important protective equipment for workers engaged in welding, and they serve three main functions: 1. Eye protection: Filtering out harmful radiation such as ultraviolet and infrared rays produced by welding, preventing damage to the eyes from the intense light of the electric arc. 2. Face protection: Preventing high-temperature welding slag from splashing onto the face, thus avoiding burns. 3. Respiratory protection: Directing airflow to reduce the amount of harmful gases released during welding that enter the body through respiration, preventing occupational diseases such as pneumoconiosis.

[0003] Traditional welding masks have a relatively simple structure, mainly consisting of a mask, observation window, filter, protective plate, and handle. The filter is usually a black or blue glass plate with a light filtering function, and the protective plate is usually a common transparent glass plate. When welding, you need to hold the welding gun in one hand and the mask in the other, which inevitably leads to inconvenience in operation.

[0004] To free up one hand from holding the welding mask, a head-mounted welding mask was designed, typically with a flip-up filter mounted on the upper front of the protective plate. However, head-mounted masks still present many inconveniences in use. For example, the filter still needs to be manually pulled down during welding, and manually flipped back up when welding stops or is interrupted, so that the welding effect can be observed through the transparent protective plate inside the observation window. Moreover, because the filter is located on the outside of the protective plate, welding spatter and fumes easily adhere to the filter, affecting the view during welding. Therefore, the problems of inconvenient operation and poor observation remain. Thus, there is an urgent need to design a welding mask that reduces operational hassles while providing clear observation. Utility Model Content

[0005] In response to the above situation, this utility model provides a welding mask that allows for clear observation, eliminating the need for manual operation of filter switching and making it more convenient to use; it also has a lens self-cleaning function, facilitating clear observation of the welding process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding mask that allows for clear observation includes a head-mounted mask integrally formed from a helmet and a front panel. An observation window is provided in the middle of the front panel. A protective plate is installed in front of the observation window through a window frame. A removable filter is provided between the protective plate and the observation window. The upper and lower side walls of the window frame are provided with insertion and removal ports for inserting and removing the filter.

[0008] The observation window is surrounded by a rectangular ring-shaped fixing frame. The rear side of the fixing frame is fixedly connected to the front panel. A driving component for driving the filter to move up and down is provided inside the fixing frame.

[0009] The drive assembly includes an active rotating shaft and a driven rotating shaft that are rotatably connected to the upper and lower frames of the fixed frame, respectively. A set of transmission pulleys is fixedly provided at the left and right ends of the active and driven rotating shafts, and two synchronous belts are wound between the two sets of transmission pulleys.

[0010] The filter is fixedly connected to the rear side of the two synchronous belts at its four corners (top, bottom, left, and right). A servo motor is connected to one end of the drive shaft. A cleaning scraper extending in the left-right direction is fixedly connected between the front sides of the two synchronous belts. The scraper blade of the cleaning scraper slides in contact with the front surface of the protective sheet. The servo motor can only rotate in both directions within a certain angle range.

[0011] A photosensitive switch is installed on the front panel below the observation window. A microcontroller is installed inside one side frame of the fixed frame. A battery compartment is installed on the upper side of the helmet, and a battery is installed inside the battery compartment. The battery, photosensitive switch and servo motor are all electrically connected to the microcontroller.

[0012] The battery provides power to all electrical components of the welding mask, and the microcontroller serves as the automatic control center for the entire welding mask. The photosensitive switch detects the intense welding light and, through the microcontroller, automatically controls the servo motor to switch the filter in a timely manner, thereby protecting the eyes from eye burns.

[0013] Furthermore, a photovoltaic power generation panel is fixedly installed on the front side of the fixed frame above the observation window, which can convert part of the light energy of the strong arc light generated during the electric welding process into electrical energy and store it in the battery for power supply. The battery can also be removed from the battery compartment for charging.

[0014] Furthermore, a voice-activated switch is also provided below the photosensitive switch, and the voice-activated switch is also electrically connected to the microcontroller. The voice-activated switch can also control the servo motor to switch the filter in a timely manner through human voice, realizing multiple control methods for filter switching.

[0015] Furthermore, a breathing hole is provided on the front panel below the voice-activated switch, and an air filter is installed in conjunction with the breathing hole. The breathing hole allows for smoother breathing when wearing the mask, preventing moisture generated by breathing from condensing into fog on the filter and protective glass, thus reducing the visibility of the observation window.

[0016] Furthermore, the helmet is provided with a heat dissipation hole on the front side, and a cooling fan is installed in the heat dissipation hole. The air outlet of the cooling fan is connected to an air outlet pipe that blows air downwards. The air blown out by the air outlet pipe can promptly disperse the fumes and dust that are dispersed during the welding process, and also helps to observe the weld more clearly.

[0017] Furthermore, a button switch for controlling the cooling fan is provided on the left side of the helmet. Both the cooling fan and the button switch are electrically connected to the microcontroller. The button switch is used to manually control the start and stop of the cooling fan.

[0018] Furthermore, a switch button for manually controlling the servo motor is also provided on the right side of the helmet. The photosensitive switch, the sound-activated switch, and the switch button are connected in parallel, and each of them can control the forward and reverse rotation of the servo motor through a microcontroller.

[0019] Furthermore, elastic bands are fixedly connected to the left and right sides of the helmet by rivets, which can support the head and neck when worn, helping to increase the stability of wearing the welding mask.

[0020] Furthermore, the helmet also features a perforated safety helmet liner on its underside, which separates the helmet from the person's head to form an elevated heat dissipation channel. This helps the cooling fan to remove moisture generated by sweat from the head in a timely manner, and also helps to prevent fogging on the filter and protective glass.

[0021] This utility model also includes other components that enable its normal use, all of which are conventional means in the field. In addition, devices or components not limited in this utility model, such as: headgear, helmet liner, servo motor, photosensitive switch, voice-activated switch, microcontroller, photovoltaic power generation panel, storage battery, cooling fan, air filter, etc., all adopt the prior art in the field.

[0022] The beneficial effects of this utility model are as follows:

[0023] The welding mask provided by this utility model allows for clear observation. It uses a photosensitive switch to detect the intense light from the welding arc and control the automatic raising and lowering of the filter and cleaning scraper. This enables automatic switching between filtering and transparent modes, as well as automatic wiping and cleaning of the protective film. This ensures that the welder can clearly observe the weld during welding and when welding is paused. Furthermore, the switching mode and lens cleaning actions can be controlled by voice or manually, further enhancing the versatility and convenience of control. This makes the welding mask more convenient to wear and use, and provides more comprehensive safety protection. Attached Figure Description

[0024] Figure 1 This is a side view of the welding mask in this utility model.

[0025] Figure 2 for Figure 1 A front view structural diagram of a welding mask.

[0026] Figure 3 for Figure 1 A magnified structural diagram of part A in the middle.

[0027] Figure 4 for Figure 2 A magnified structural diagram of section B.

[0028] Figure 5 for Figure 3 A schematic diagram of the structure when the intermediate filter is moving upwards while the cleaning scraper is moving downwards. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0030] It should be noted that the terms "up," "down," "front," "back," "left," "right," "inner," and "outer," which indicate directions or positional relationships, are based on the attached drawings and are used only for ease of description.

[0031] Example 1

[0032] like Figure 1-5 As shown, a welding mask that allows for clear observation includes a head-mounted mask integrally formed from a helmet 1 and a front panel 2. An observation window 3 is provided in the middle of the front panel. A protective plate 5 is installed in front of the observation window through a window frame 4. A removable filter 6 is provided between the protective plate and the observation window. Insertion and removal ports 7 for inserting and removing the filter are provided on the upper and lower side walls of the window frame.

[0033] The observation window is surrounded by a rectangular ring-shaped fixing frame 8. The rear side of the fixing frame is fixedly connected to the front panel. A driving component for driving the filter to move up and down is provided inside the fixing frame.

[0034] The drive assembly includes an active rotating shaft 9 and a driven rotating shaft 10, which are rotatably connected to the upper and lower frames of the fixed frame via bearings. A set of transmission pulleys 11 are fixedly provided at the left and right ends of the active and driven rotating shafts, and two synchronous belts 12 are wound between the two sets of transmission pulleys.

[0035] The filter is fixedly connected to the rear side of the two synchronous belts at its top, bottom, left and right corners, respectively. A servo motor 13 is connected to one end of the drive shaft. A cleaning scraper 14 extending in the left and right direction is fixedly connected between the front sides of the two synchronous belts. The scraper blade of the cleaning scraper slides in contact with the front surface of the protective sheet.

[0036] The servo motor can only rotate in both directions within a certain angle range, thereby simultaneously driving the filter and the cleaning scraper to move up and down to automatically switch between filtering and transparent modes and to wipe and clean the adhering substances on the surface of the protective glass.

[0037] A photosensitive switch 15 is installed on the front panel below the observation window. A microcontroller 16 is installed inside one side frame of the fixed frame. A battery compartment is installed on the upper side of the helmet, and a storage battery 17 is installed inside the battery compartment. The storage battery, photosensitive switch and servo motor are all electrically connected to the microcontroller.

[0038] The battery provides power to all electrical components of the welding mask, and the microcontroller serves as the automatic control center for the entire welding mask. The photosensitive switch can detect the intense welding light and automatically control the servo motor via the microcontroller to switch the filter in a timely manner.

[0039] Example 2

[0040] Based on Embodiment 1, a photovoltaic power generation panel 18 is also fixedly installed on the front side of the fixed frame above the observation window. This panel can convert part of the light energy of the strong arc light generated during the welding process into electrical energy and store it in the battery for power supply. The battery can also be removed from the battery compartment for charging.

[0041] Below the photosensitive switch, a voice-activated switch 19 is also provided, which is electrically connected to the microcontroller. The voice-activated switch can also control the servo motor to switch the filter in a timely manner through human voice. For example, saying "filter up" will raise the filter, and saying "filter down" will lower the filter. This allows for multiple control methods for filter switching, effectively freeing up the hands.

[0042] Example 3

[0043] Based on Embodiment 2, a breathing hole 20 is also provided on the front panel below the voice-activated switch, and an air filter 21 is installed on the breathing hole. The breathing hole allows for smoother breathing when wearing the mask, improving the stuffiness inside the mask, and also prevents moisture generated by breathing from condensing into fog on the filter and protective glass, thus reducing the visibility of the observation window.

[0044] Example 4

[0045] Based on embodiment 3, the helmet is further provided with a heat dissipation hole 22 on the front side, and a cooling fan 23 is installed in the heat dissipation hole. The air outlet of the cooling fan is connected to an air outlet pipe 24 that blows air downwards at an angle. The air outlet of the air outlet pipe has a flat structure in the shape of a duckbill. The air blown out can promptly disperse the smoke and dust that are scattered during the welding process, and also helps to observe the weld more clearly.

[0046] The helmet has a push-button switch 25 on the left side for controlling the cooling fan. Both the cooling fan and the push-button switch are electrically connected to the microcontroller. The push-button switch is used to manually control the start and stop of the cooling fan. When you feel hot and sweaty on your head, you can turn on the fan; when you feel cool, you can turn off the fan.

[0047] Example 5

[0048] Based on Embodiment 4, the helmet also has a switch button 26 for manually controlling the servo motor on the right side. The photosensitive switch, sound-activated switch, and switch button are connected in parallel, and each can control the forward and reverse rotation of the servo motor through a microcontroller. For example, if there is a lot of residue on the front surface of the protective plate and the cleaning scraper cannot clean it in one go, the cleaning scraper can be manually controlled to scrape back and forth several times.

[0049] Example 6

[0050] Based on embodiment 5, the helmet is further secured to the left and right sides by rivets 27 with elastic bands 28. The elastic bands are Y-shaped rubber bands that can effectively support the back of the head and the neck below the back of the head when worn, helping to increase the stability of wearing the welding mask.

[0051] Example 7

[0052] Based on embodiment 6, the helmet also has a hollowed-out safety helmet liner 29 on the lower side. When worn, it can separate the helmet from the person's head, forming a better suspended heat dissipation channel 30. This allows the cooling fan to promptly remove the moisture generated by the welder's sweat evaporation during the welding process, and also helps to prevent fogging on the filter and protective glass. On the other hand, it can also serve as a safety helmet with a certain degree of anti-smashing and anti-collision function.

[0053] The technical solution of this utility model is not limited to the specific embodiments described above. Without departing from the scope and spirit of the described embodiments, many modifications and changes will be obvious to those skilled in the art. Any technical modifications made within the spirit and principles of this utility model shall fall within the protection scope of this utility model.

Claims

1. A welding mask with clear visibility, comprising a head-mounted mask integrally formed from a helmet and a front panel, wherein an observation window is provided in the middle of the front panel, a protective plate is installed in front of the observation window via a window frame, a removable filter is provided between the protective plate and the observation window, and the upper and lower side walls of the window frame are provided with insertion and removal ports for inserting and removing the filter, characterized in that: The observation window is surrounded by a rectangular ring-shaped fixing frame. The rear side of the fixing frame is fixedly connected to the front panel. A driving component for driving the filter to move up and down is provided inside the fixing frame. The drive assembly includes an active rotating shaft and a driven rotating shaft that are rotatably connected to the upper and lower frames of the fixed frame, respectively. A set of transmission pulleys is fixedly provided at the left and right ends of the active and driven rotating shafts, and two synchronous belts are wound between the two sets of transmission pulleys. The filter is fixedly connected to the rear side of the two synchronous belts at its top, bottom, left and right corners respectively. A servo motor is connected to one end of the drive shaft. A cleaning scraper extending in the left and right direction is fixedly connected between the front sides of the two synchronous belts. The scraper blade of the cleaning scraper slides in contact with the front surface of the protective sheet. A photosensitive switch is installed on the front panel below the observation window. A microcontroller is installed inside one side frame of the fixed frame. A battery compartment is installed on the upper side of the helmet, and a battery is installed inside the battery compartment. The battery, photosensitive switch and servo motor are all electrically connected to the microcontroller.

2. The welding mask with clear visibility according to claim 1, characterized in that: A voice-activated switch is also provided below the photosensitive switch, and the voice-activated switch is also electrically connected to the microcontroller controller.

3. The welding mask with clear visibility according to claim 2, characterized in that: A vent is provided on the front panel below the voice-activated switch, and an air filter is installed on the vent.

4. The welding mask with clear visibility according to claim 1, characterized in that: The helmet also has a heat dissipation hole on the front side, and a cooling fan is installed in the heat dissipation hole; a button switch for controlling the cooling fan is provided on one side of the helmet, and both the cooling fan and the button switch are electrically connected to the microcontroller.

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