WO2020151062A1 - 一种护目镜内掀式面罩 - Google Patents

一种护目镜内掀式面罩 Download PDF

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Publication number
WO2020151062A1
WO2020151062A1 PCT/CN2019/077941 CN2019077941W WO2020151062A1 WO 2020151062 A1 WO2020151062 A1 WO 2020151062A1 CN 2019077941 W CN2019077941 W CN 2019077941W WO 2020151062 A1 WO2020151062 A1 WO 2020151062A1
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WO
WIPO (PCT)
Prior art keywords
goggles
mask
mask body
connecting shaft
link
Prior art date
Application number
PCT/CN2019/077941
Other languages
English (en)
French (fr)
Inventor
孙海建
Original Assignee
安徽恒裕光电有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 安徽恒裕光电有限公司 filed Critical 安徽恒裕光电有限公司
Priority to US16/479,607 priority Critical patent/US11324632B2/en
Publication of WO2020151062A1 publication Critical patent/WO2020151062A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06—Masks, shields or hoods for welders
    • A61F9/061—Masks, shields or hoods for welders with movable shutters, e.g. filter discs; Actuating means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06—Masks, shields or hoods for welders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • A61F9/029—Additional functions or features, e.g. protection for other parts of the face such as ears, nose or mouth; Screen wipers or cleaning devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P1/00—Safety devices independent of the control and operation of any machine
    • F16P1/06—Safety devices independent of the control and operation of any machine specially designed for welding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles

Definitions

  • the invention relates to a welding protective mask, in particular to an inward-lifting mask for goggles.
  • handheld welding protective masks are used, such as application number: 201720792053.0, which discloses a welding protective mask, including A protective mask, a handle is connected below the protective mask, and an observation window equipped with a filter lens (equivalent to the goggles in this application) is provided on the panel of the protective mask, which is characterized in that it also includes an inner heat insulation mask; this Hand-held masks must be held manually, which is inconvenient to operate.
  • the welding protective masks that appeared later ranged from simple protective masks made of dark glass and red steel paper to various automatic filter protective masks (equivalent to the automatic filter variable color number in this application file). Goggles), but it still cannot satisfy people's satisfaction with its function and comfort. For example, the operator must have a clear observation of the workpiece and the surrounding environment before wearing a welding mask. After welding, the welding seam needs to be cleaned and polished. There must be a protective mask that can clearly see the environment and the workpiece.
  • the automatic filter protective mask It can solve some problems, but its transmittance is only 8% when it is not blackened. In many cases, it cannot meet the requirements of the operator to see the workpiece and the surrounding environment clearly.
  • flip-top masks simply flip the goggles together with the outer protective lens in front of the goggles.
  • this type of mask has many disadvantages and is not very popular with operators.
  • the goggles must be designed as far as possible in the front of the mask and away from the eyes, otherwise the goggles cannot be turned up, resulting in a narrower view of the same size window, and the center of gravity of the mask is also moved forward and the force is reduced, especially after turning the goggles.
  • the application number: 201710845243.9 discloses a protective mask for electric welders, including a mask, a goggles box is arranged above the mask, characterized in that the lower part of the goggles box is fixed with a lower lens (equivalent to the inner protection in this application Lens), the upper part and the lower part of the goggles box are hinged and can be rotated 120 degrees.
  • the upper part of the goggles box is fixed with an upper lens (equivalent to the goggles in this application), the lower lens is a transparent lens, and the upper lens is black
  • the rear part of the mask is provided with a fixing rope, the fixing rope is an elastic rope, and the joint with the mask can be rotated by 180 degrees.
  • the goggles box can be turned up. Therefore, in order to protect the lower lens, the center of gravity of the mask moves forward after the goggles box is turned up, and the lower lens has a small field of view, which is not convenient for operation.
  • the prior art has ordinary head-mounted flip welding masks and automatic filter flip welding masks.
  • the common disadvantage is that the goggles and the outer protective lens are turned outward at the same time, which affects the external structure of the mask because the outer protective lens is lifted
  • a layer of transparent protective lens should be repeatedly designed inside; because the goggles have an eversion function, especially after the goggles are turned up, the center of gravity of the mask will move forward and upward, which adds an extra leverage to the operator’s neck and neck.
  • the center of gravity is unstable; when the goggles move forward, the line of sight becomes narrower; when the goggles are turned out, the goggles are easily contaminated by welding slag, grinding splashes and dust, and the overall weight of the mask increases. All of these cause too many side effects to the user.
  • the goggles in the above article can be filters with a fixed color number (that is, with a fixed transmittance), or can be automatically dimming filters.
  • the technical problem to be solved by the present invention is to provide a flip-in goggles that solves the shortcomings of the above-mentioned background art that the eversion mask is prone to instability of the center of gravity, the mask is too heavy, the line of sight is poor, and the goggles are easily damaged and contaminated. .
  • the present invention solves the above-mentioned technical problems through the following technical solutions:
  • the present invention discloses an inward-lifting goggles mask, which includes a mask body, goggles, a front protection mirror, and a linkage mechanism; the front protection mirror is fixed on the front side of the mask body, The goggles are fixed on the link mechanism, and the link mechanism can adjust the up and down movement and rotation of the goggles and are connected to both sides of the mask body, and the goggles are located inside the mask body.
  • the invention adopts the inward tilting mode of the goggles, which prevents the eversion type goggles from being easily contaminated by welding splash, grinding splash and dust when the eversion type goggles are turned, and avoids the overall mask center of gravity shifting forward and the center of gravity caused by the eversion type goggles. Defects of stability; the goggles can be tilted inward, which will be able to adapt to occasions where the mask cannot be taken off, adapt to a wider range of occasions, and be more flexible; make the front protective lens large and wide enough and have a good line of sight; and the simple structure makes the entire mask More concise and light.
  • the link mechanism includes a link frame and a rocker link, one end of the rocker link is rotatably connected to the side of the mask body through a first connecting shaft, and the other end of the rocker link is connected through a second connection.
  • the shaft is fixedly connected to the middle of the connecting rod holder, the connecting rod holder is placed inside the mask body, one end of the connecting rod holder is fixedly connected with the goggles, and the other end is slidably connected to the mask body through the third connecting shaft.
  • the first connecting shaft , The second connecting shaft and the third connecting shaft are sequentially away from the front side of the mask body.
  • the invention drives the link frame to move up and down and rotate through the rotation of the rocker arm link, so that the center of gravity of the mask body will not move forward and avoid pressure on the neck; the first connecting shaft, the second connecting shaft, and the third connecting shaft Keep away from the front side of the mask body in turn to ensure that when the second connecting shaft rotates around the fixed first connecting shaft, the motion vector direction of the connecting rod holder is front and upper.
  • the front end of the connecting rod frame is a vertical structure, and a plurality of connecting holes for connecting with the goggles are provided on it, and the goggles are connected with the connecting rod frame through the connecting holes;
  • There is a horizontal sliding groove the third connecting shaft passes through the sliding groove and is fixed on the mask body, and the middle part of the connecting rod frame is provided with a circular hole connected with the rocker connecting rod.
  • the present invention can be detachably connected with the goggles through the connecting hole, which is convenient for replacement and installation; the setting of the sliding groove ensures that the goggles can reach the set position space when the goggles move up and down and rotate, and limit the free movement of the connecting rod frame. Ensure the controllable movement of the goggles on the prescribed trajectory.
  • the limit plate is fixed on the mask body and covers the outside of the rocker link, and the end of the limit plate away from the first connecting shaft is provided with a fan-shaped slot; the limit plate faces the mask body
  • One side of the inner side is provided with a first hollow cylinder, the first cylinder is provided at the small end of the limit plate, one end of the rocker link is provided with a sleeve, and the sleeve is rotatably sleeved on the first hollow cylinder ,
  • the first connecting shaft is matedly connected with the first hollow cylinder.
  • the setting of the limit plate can realize the carrier that the rocker link is fixed, without all being directly installed on the mask body, can realize the movable connection of the rocker link and the mask body, and realize the freedom of rotation of the rocker link and the improvement of the production process.
  • the limit plate is covered on the outside of the rocker arm link, which can also protect the rocker arm link to a certain extent, and the limit plate and the mask body are connected as tightly as possible.
  • the return force spring is sleeved outside the sleeve, both ends of the return force spring are bent, the bottom end is inserted into the rocker arm link, and the top end is fixed on the limit plate.
  • the setting of the return spring can save effort when rotating the rocker arm link downwards, and can also use part of the elastic force to press the goggles against the window of the mask body to increase the sealing performance.
  • the rocker arm link is provided with a handle at one end connected to the link frame, and the handle is arranged on the side facing away from the mask body and extends through the fan-shaped slot to the outside of the limit plate.
  • the top of the handle is provided with a buckle ,
  • the buckle is a concave structure, the end of the limit plate away from the first connecting shaft is provided with at least two grooves, one end of the buckle is clamped in the groove, and the other end is clamped outside the groove, on the rocker link
  • the side facing the inside of the mask body is provided with a second hollow cylinder, and the second connecting shaft is matched and connected with the second hollow cylinder.
  • the cooperation of the buckle and the slot in the present invention enables the goggles to move in at least two working positions, and can be positioned at any one of the working positions, ensuring the stability of use, especially when the goggles are on the front side of the forehead
  • the fixed connection between the second connecting shaft and the second hollow cylinder realizes the fixed connection between the middle of the connecting rod frame and the rocker arm connecting rod.
  • the mask body has a semi-enclosed structure, and its front side is provided with an opening for installing the front protective lens and a window matching the goggles, and both sides are provided with fan-shaped holes corresponding to the limit plate, and the limit plate is fixedly connected At the fan-shaped hole.
  • the air supply system includes an air supply pipe and an air supply port.
  • the air supply port is fixed on the inner surface of the top of the mask body, and the air supply pipe is connected to the air supply port.
  • the setting of the air supply system can provide fresh air to the inside of the relatively sealed or completely sealed mask body.
  • the air supply opening has a diverging structure, and the air supply opening includes a plurality of divided air supply openings.
  • the divergence of the air supply opening can make the wind blow more dispersed and even.
  • solar power supply panels are also provided on both sides of the goggles.
  • the electricity can be obtained through solar energy, which is more convenient and environmentally friendly.
  • the goggles are goggles with a fixed color number or goggles or magnifying glasses with an automatic filter and variable color number.
  • the present invention has the following advantages:
  • the present invention adopts the method of flipping the goggles inward to realize that the goggles can move up and down and rotate through the linkage mechanism in the narrow space between the inside of the mask and the wearer's head and face. Welding spatter, grinding spatter and dust pollution; and avoid the defects of the prior art eversion goggles, which causes the overall mask to move forward and the mask is heavier; the goggles can move up and down and rotate, which will be able to adapt to the inability to remove the mask It can adapt to a wider range of occasions and is more flexible; this goggles can directly observe the workpiece and the environment through the wide and transparent front protective mirror after tilting, making the line of sight clear and wide; and the simple structure makes the entire mask more concise, lighter and more applicable ; There is no need to set two transparent front protective lenses at the same time, just set one front protective lens;
  • the present invention drives the link frame to move forward and upward through the rotation of the rocker arm link, so that the center of gravity of the mask body will not move forward, avoiding pressure on the neck, and this link mechanism has a simple structure and convenient operation
  • the present invention can be detachably connected with the goggles through the connecting hole, which is convenient for replacement and installation;
  • the setting of the sliding groove on the connecting rod frame is to adapt to the set position space when the goggles move up and down and rotate, and limit the connecting rod
  • the free movement of the frame ensures the controllable movement of the goggles within a certain range;
  • the setting of the limit plate can movably connect the rocker link and the mask body, thereby maintaining the freedom of rotation of the rocker link and simplifying the production process ,
  • the limit plate is covered on the outside of the rocker link, which can also protect the rocker link to a certain extent;
  • the setting of the return spring can make it more labor-saving when rotating the rocker link down, and it can also use part of the elastic
  • the setting of the air supply system can provide fresh air inside the relatively sealed or completely sealed mask body; the setting of the air supply opening in a divergent shape can make the wind blow more dispersed and even;
  • the mask is light and has no change in appearance and is easy to use;
  • the front protective lens is wide and large enough to ensure a large field of view
  • FIG. 1 is a schematic diagram of the structure of an inward-lifting goggles mask according to the first embodiment of the present invention
  • Figure 2 is a schematic structural view of a flip-in face mask for goggles according to the first embodiment of the present invention
  • FIG. 3 is a schematic diagram of the connection structure of the connecting mechanism and the goggles in the first embodiment
  • FIG. 4 is a schematic diagram of the connecting structure of the connecting mechanism and the goggles in the first embodiment
  • Fig. 5 is a schematic structural diagram of the connecting rod frame in the first embodiment
  • Figure 6 is a schematic diagram of the structure of the sliding sleeve in the first embodiment
  • Figure 7 is a schematic diagram of the structure of the third connecting shaft in the first embodiment
  • Figure 8 is a schematic diagram of the connecting structure of the rocker arm link and the limit plate in the first embodiment
  • FIG. 9 is a schematic diagram of the connection structure between the first sealing plate and the second sealing plate in the first embodiment
  • Figure 10 is a schematic diagram of the connection structure of the first sealing plate and the second sealing plate in the first embodiment
  • FIG. 11 is a schematic diagram of the connection structure between the rocker arm link and the limit plate in the first embodiment
  • FIG. 12 is a schematic diagram of the structure of the limiting plate in the first embodiment
  • Figure 13 is a schematic structural diagram of a buckle according to an embodiment
  • FIG. 15 is a schematic structural diagram of a lift-in type goggles in the fourth embodiment.
  • Figure 16 is a working principle diagram of the goggles in use
  • Figure 17 is a schematic diagram of the goggles in the working position and the up-lift position (dotted line).
  • this embodiment is an inward-lifting goggles mask, which includes a mask body 1, a goggles 2, a front protective mirror 3, a linkage mechanism 4, a first connecting shaft 5, and a second connecting shaft 6.
  • the third connecting shaft 7, the limit plate 8; the front protective mirror 3 is fixed on the front side of the mask body 1, the goggles 2 are fixed on the link mechanism 3, and the link mechanism 3 can adjust the rotation of the goggles 2 and connect to the mask body 1
  • the linkage mechanism 4 can adjust the goggles 2 to rotate upwards.
  • the goggles 2 are inside the mask body 1, and the back side of the front protective mirror 3 is closer to the eyes; the first connecting shaft 5, the third connecting The shaft 7 is in a fixed state, the second connecting shaft 6 is in an arc-shaped movement state, and the positions of the first connecting shaft 5, the second connecting shaft 6, and the third connecting shaft 7 are located away from the goggles 2 in turn.
  • the goggles 2 are set inside the mask body 1. When in use, they are closer to the eyes, have a better line of sight, and improve the comfort of use. When not in use, put the goggles 2 Rotate to the top, the external structure of the mask body 1 remains unchanged, and the center of gravity of the entire mask will not move forward; the goggles 2 are always inside the mask in the working position and the upward position to avoid welding spatter, grinding spatter and dust pollution.
  • the front protective mirror 3 is wide and large enough to ensure a large field of view.
  • the goggles in this embodiment can be goggles with a fixed color number (that is, fixed transmittance), or goggles with an automatic filter and variable color number (that is, variable transmittance), and the same can be Magnifying glass and other lenses suitable for use occasions.
  • the mask body 1 is a semi-enclosed structure, and the mask body 1 of the existing standard design can be used for improvement, and the front side of the mask body 1 is equipped with a front protective mirror.
  • the opening of 3 and the window closely matched with the goggles 2 are provided with fan-shaped holes corresponding to the limit plate 8 on both sides.
  • the limit plate 8 is fixed on the fan-shaped hole by means of clamping, screw connection, bonding, etc., and To ensure the tightness of the connection, the rocker arm link 42 is fixed to the first hollow cylinder 83 of the limit plate 8 through the sleeve 423, and is fixed by the first connecting shaft 5, so that the rocker arm link 42 can be fixed.
  • a rear protective cover is also provided on the back side of the mask body 1 during use.
  • the rear protective cover is mostly a sealing cloth, and the rear protective cover and the mask body 1 Forms a cavity that can accommodate the head;
  • the mask body 1 is also provided with multiple knobs, whose function is to adjust the color number and sensitivity of the goggles, or some knobs are used to adjust the tightness of the headband when in use ,
  • the link mechanism 4 includes a link frame 41, a rocker The arm link 42, one end of the rocker link 42 is rotatably connected to the outside of the mask body 1 through the first connecting shaft 5.
  • the rocker link 42 can rotate around the first connecting shaft 5 within a certain range.
  • the other end of the connecting rod 42 is fixedly connected to the middle part of the connecting rod frame 41 through the second connecting shaft 6.
  • the connecting rod frame 41 is placed inside the mask body 1, and the horizontal direction and the horizontal direction of the connecting rod frame 41 are driven by the rotation of the rocker link 42 Moving in the vertical direction, one end of the link frame 41 is fixedly connected to the goggles 2, and the other end is slidably connected to the mask body 1 through the third connecting shaft 7; the link mechanism 4 can ensure that the goggles 2 rotate up While turning over, the goggles 2 move up and rotate back as a whole to ensure that they do not interfere with the head and the mask body 1.
  • the connecting rod frame 41 has an elongated "Z" structure, in which the tail part is a horizontal structure, and the middle part is provided with a circular hole 412 for connecting with the rocker arm 42
  • the front end of the connecting rod holder 41 has a vertical bending structure, and there are a number of connecting holes for connecting with the goggles 2.
  • the goggles 2 can be connected to the connecting rod holder 41 by screws, It is easy to replace parts after damage.
  • the end of the connecting rod frame 41 is provided with a horizontal sliding groove 411.
  • the sliding groove 411 is a waist-shaped hole.
  • the third connecting shaft 7 passes through the sliding groove 411 and is fixed on the mask body 1.
  • the sliding groove 411 It can slide up horizontally under the limit of the third connecting shaft 7.
  • a sliding sleeve 43 is also sleeved at the sliding groove 411.
  • the sliding sleeve has a U-shaped structure.
  • the tail of the link frame 41 can be slidably inserted into the "inside of the U-shaped structure.”
  • the open end of the structure communicates with the part of the connecting rod frame 41 for the third connecting shaft 7 to pass through.
  • the sliding groove 411 is provided with a protrusion on the side (inner side) facing the mask body 1
  • the waist-shaped slide 4111 of the waist slide 411 has an opening at the end for the insertion of the protrusion 431.
  • the protrusion 431 is provided with a protrusion 431.
  • the width dimension of the protrusion 431 is smaller than the width of the waist slide 4111. In this way, the protrusion 431 can be inserted into the waist slide 4111, and the protrusion 431 and the waist slide 4111 can slide.
  • the upper half of the slide sleeve 43 Partly placed on the outer side of the connecting rod frame 41, the third connecting shaft 7 passes through the mask body 1, the upper half of the sliding sleeve 43, the sliding groove 411, and the sliding sleeve from the outside of the mask body 1 to the inside of the mask body 1.
  • the lower part of the sliding sleeve 43 is a solid plate, which can seal the sliding groove 411 so that when the goggles 2 is in the working position, the sliding sleeve 43 seals the entire sliding groove 411 to prevent the wearer from Hair etc. enter the sliding groove 411, and the hair is stirred when the goggles are lifted up; in addition, the sealed sliding groove 411 is more beautiful; the arrangement of the sliding groove 411 is more conducive to the smooth movement of the connecting rod frame 41 inside.
  • the third connecting shaft 7 has a split structure, including a first split 71 and a second split 72.
  • One end of the first split 71 is a cylindrical structure with internal threads, and the other end is a convex (Equivalent to the nut of the bolt, which acts as a limiter);
  • one end of the second split body 72 is a solid cylindrical structure with an external thread that can be matched with an internal thread, and the other end is provided with a protrusion.
  • This embodiment is only a structure of the third connecting shaft 7, in fact, it can also be directly connected by bolts and nuts.
  • the right part in Figure 3 is a structure that hides the limit plate 8 and the buckle 4211, which is convenient for comparison with the left side.
  • the limit of the fan-shaped structure in this embodiment is Position plate 8.
  • the limit plate 8 covers the outside of the rocker link 42 and is fixed on the mask body 1.
  • the back of the limit plate 8 (the side facing the inside of the mask body 1) is provided with a first connecting shaft 5
  • the first hollow cylinder 83 is connected.
  • the first hollow cylinder 83 is arranged so that the limit plate 8 is fixed on the mask body 1 in order to be connected to the first connecting shaft 5.
  • the first connecting shaft 5 and the first hollow cylinder The hollow interior of the 83 can be fixed by screw threads or interference fit.
  • the connection with the first hollow cylinder 83 is a sleeve 423.
  • the sleeve 423 is sleeved on the first hollow cylinder 83 and is not fixed, that is, the sleeve 423 can rotate on the first hollow cylinder 83.
  • the rocker arm link 42, the handle 421, and the sleeve 423 are an integrated structure.
  • the handle 421 passes through the fan-shaped slot 81 and extends to the outside of the limit plate 8.
  • the sleeve 423 is on the other side of the limit plate 8 (in the figure).
  • the handle 421 is located at the bottom of the left side of the limit plate, and the sleeve 423 is located at the top of the right side of the limit plate).
  • a return spring 424 is provided outside the sleeve 423, and one end of the return spring 424 is inserted into the rocker arm link 42 , The other end is stuck on the notch 84 on the limit plate 8.
  • the notch 84 is located at the edge of the limit plate 8. At this time, the return spring 424 maintains a certain elasticity, as shown in Figure 9-10, in order to ensure the return spring 424 When it is sleeved on the sleeve 423, it does not fall off and has sealing and aesthetics.
  • a first sealing plate 85 is also provided, which is clamped on the limiting plate 8 and outside the sleeve 423.
  • the first sealing plate 85 is a fan-shaped plate, and The shape of the limiting plate 8 is adapted, the small end is provided with a connecting hole 851 for the first connecting shaft 5 to pass through, and a position corresponding to the notch 84 is provided with a notch 84', and the return spring 424 is limited in the notch 84 and the notch 84 'In the space formed; under the action of elastic force, the rotary rocker arm link 42 can be rotated down more labor-saving.
  • the existence of a certain elastic force can make the lower edge of the goggles 2 closely adhere to the window of the mask body 1 to ensure sealing .
  • a second sealing plate 86 can also be provided on the same side of the first sealing plate 84, which is clamped on the limiting plate 8, and the first sealing plate 85 and the second sealing plate 86 are separated On both sides of the second hollow cylinder 422, an arc-shaped channel is formed between the first sealing plate 85 and the second sealing plate 86.
  • a second hollow cylinder 422 is provided at a position corresponding to the handle 421 on the rocker link 42.
  • the second hollow cylinder 422 and the rocker link 42 are an integrated structure, as shown in FIG.
  • the rod frame 41 is provided with a circular hole 412 corresponding to the second connecting shaft 6, correspondingly, there are fan-shaped holes corresponding to the limiting plate 8 on both sides of the mask body 1, and the second hollow cylinder 422 passes through the connecting rod frame 41
  • the upper circular hole 412 is fixedly connected with the second connecting shaft 6 passing through the inside of the mask body 1 to realize the fixed connection between the middle part of the link frame 41 and the rocker link 42.
  • the large end of the limit plate 8 is provided with a fan-shaped slot 81; the end of the rocker link 42 connected to the link frame 41 is provided with a handle 421, and the handle 421 extends Out of the fan-shaped groove 81.
  • the tail of the limit plate 8 is provided with at least two card slots 82. In this embodiment, there are two card slots 82.
  • the handle 421 is hollow inside, and a spring installed in the vertical direction is arranged inside. The spring is provided with a buckle 4211.
  • the bayonet 4211 has a concave structure. One end of the concave shape can be clamped in the card slot 82, and the other end is outside the card slot 82.
  • two card slots 82 are used to realize the two operations of the goggles 2.
  • the positioning of the position can also be set to three card slots 82 and so on, which can be set according to actual needs; the spring can also be replaced by other elastic pieces such as elastic pieces.
  • the goggles 2 when the lower card slot 82 is stuck with the buckle 4211 on the handle 421, the goggles 2 is in a vertical state, that is, in use; when the goggles 2 are not used, hold the cards on both sides at the same time.
  • the compression spring causes the buckle 4211 to retract, and the buckle 4211 is no longer clamped on the groove 82.
  • the handle 421 rotates along the first connecting shaft 5 and moves to the upper groove 82. Loosen the other end of the buckle 4211, under the action of the compression spring, the buckle 4211 pops out and snaps into the upper groove 82 to achieve positioning. At this time, the goggles 2 can be fixed on the top of the head without moving down.
  • Figs. 16-17 The operation process of this embodiment is shown in Figs. 16-17.
  • the goggles 2 When the goggles 2 is on the front side of the eyes, that is, in use, the rightmost end of the sliding groove 411 is attached to the third connecting shaft 7 (ie, position 4), and shake The arm link 42 is in the lower position (ie position 1).
  • both hands hold the buckles 4211 on both sides at the same time, and the springs compress the buckles 4211 to retract.
  • the buckle 4211 is no longer clamped on the lower groove 82, and the handle 421 is rotated along the first connecting shaft 5 and moved to the upper groove 82, and the buckle 4211 is released.
  • the buckle 4211 is snapped into the upper slot 82 to achieve positioning.
  • the rocker link 42 is in the upper position (ie position 2).
  • the rocker link 42 moves forward and upward, the slide slot 411 is in the third position.
  • the connecting shaft 7 slides horizontally upward.
  • the leftmost end of the sliding groove 411 is attached to the third connecting shaft 7 (ie position 3), and the goggles 2 are fixed on the front side of the forehead.
  • the lower edge of the goggles 2 is always on the same vertical surface without tilting, and the goggles can be moved according to the set position with the smallest space;
  • the difference between the second embodiment and the first embodiment is that the second hollow cylinder 422 is arranged on a connecting piece 44, and the connecting piece 44 and the rocker link 42 have a split structure, and the second hollow cylinder The body 422 is not directly arranged on the rocker link 42;
  • the rocker arm link 42 and the link frame 41 are connected by a connecting piece 44, and the connecting piece 44 is fixedly connected to the rocker link 42. It can be screwed, clipped, glued, etc., specifically , Connected between the handle 421 and the sleeve 423 to ensure that the middle part of the link frame 41 is fixedly connected to the end of the rocker link 42.
  • the connecting piece 44 is provided with a second connecting shaft at a position corresponding to the handle 421 6
  • the second hollow cylinder 422 is fixedly connected, the connecting rod frame 41 is provided with a circular hole 412 corresponding to the second connecting shaft 6, and correspondingly, the two sides of the mask body 1 are provided with fan-shaped holes corresponding to the limit plates.
  • the hole is to adapt to the space when the second connecting shaft 6 moves in an arc.
  • the second hollow cylinder 422 passes through the circular hole on the connecting rod frame 41 and is fixedly connected to the second connecting shaft 6 passing through the mask body 1
  • it may be a threaded fixed connection, an interference fit connection, etc., which can realize a fixed connection; in this embodiment, the purpose of providing a connecting piece 422 is to It is convenient for the production process of the rocker link 42, the buckle 4211, the second hollow cylinder 422, and the installation with the limit plate 8 and the compression spring.
  • the rocker arm link 42 realizes positioning in a different manner.
  • the positioning is realized by the buckle 4211 and the two card slots 82; in this embodiment, the positioning pin is inserted into the card slot 82. Way of positioning.
  • the tail of the limit plate 8 is provided with at least two grooves 82. In this embodiment, there are two grooves 82.
  • the handle 421 is hollow inside. When the handle 421 is moved to a groove 82, the hollow of the handle is in the groove. 82 are aligned. At this time, insert the positioning pin into the slot 82 and extend to the hollow inside the handle 421 to achieve positioning; when the station needs to be replaced, pull out the positioning pin and move the handle 421 to another slot 82. Insert the positioning pin into the slot 82 and extend to the hollow inside the handle 421 to achieve positioning in other positions.
  • the difference from the first embodiment is: on the basis of the first embodiment, the mask body 1 further includes an air supply system 9;
  • the air supply system 9 in this embodiment includes an air supply pipe 91 and an air supply port 92.
  • the air supply port 92 is fixed on the inner surface of the top of the mask body, and the air supply pipe 91 is connected to the air supply port 92.
  • the air supply port 92 has a divergent structure, and the air supply port 92 includes a number of sub-supplied air ports, which can supply air to the front and both sides of the head to avoid blowing air in the same direction and cause discomfort to the operator.
  • the masks in Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4 are all symmetrical structures; among them, the linkage mechanism 3, the first connecting shaft 5, the second connecting shaft 6, and the third connecting shaft 7. , There are two limit plates 8, which are arranged on both sides of the mask body 1.
  • the two sides of the goggles 2 are also provided with solar power supply panels.
  • the function of the power supply board uses sunlight and electric welding light to power the variable light goggles, and adjust the color number and color number of the goggles 2 through the knob on the mask body 1. Sensitivity etc.
  • the difference from the first embodiment is that the rotation of the rocker arm link 42 can be driven by a micro motor to realize the electric control of the up and down movement and rotation of the goggles 2, which is more convenient for operation, labor saving, and automation. .

Abstract

一种护目镜内掀式面罩，包括面罩体(1)、护目镜(2)、前保护镜(3)、连杆机构(4)；前保护镜(3)固定在面罩体(1)前侧，护目镜(2)固定在连杆机构(4)上，连杆机构(4)能够调节护目镜(2)上下移动及旋转的连接在面罩体(1)两侧，护目镜(2)处于面罩体(1)内部。该内掀式面罩避免了护目镜(2)在外部上掀时容易被焊接飞溅、打磨飞溅和灰尘污染；以及避免整体面罩重心前移、面罩偏重的缺陷；护目镜(2)能够在面罩体(1)内部上掀，在面罩不摘下的场合仍然能够不影响视线，适应场合更广泛、更灵活、操作更方便。

Description

一种护目镜内掀式面罩 技术领域
本发明涉及一种焊接防护面罩，尤其涉及的是一种护目镜内掀式面罩。
背景技术
随着社会的进步，人们对个人防护以及对生产效率的提高有了更高的要求，很多场合使用的都是手持式的焊接防护面罩，如申请号：201720792053.0，公开一种焊接防护面罩，包括防护面罩，防护面罩的下方连接有手柄，防护面罩的面板上设置安装有滤光镜片(相当于本申请文件中的护目镜)的观察窗，其特征在于，还包括内隔热面罩；这种手持式的面罩，必须人工手持，操作不便。
再者，后来出现的焊接防护面罩从简单的深色玻璃加红钢纸做的防护面罩到目前各种各样的自动滤光防护面罩(相当于本申请文件中的自动滤光可变色号的护目镜)，但还是不能满足人们对它的功能和舒适性的满足。比如戴上焊接面罩焊接前操作工对工件和周围环境的清晰观察，焊接后需要对焊缝的清渣处理和打磨都要有能够清晰看清环境和工件的防护面罩，自动滤光防护面罩虽然能够解决一些问题，但它在非变黑的情况下的透过率也只有8％，在很多场合不能满足操作工对工件和周围环境看清楚的要求。
于是人们又有翻盖面罩的出现，目前，翻盖面罩都是简单的把护目镜连同护目镜前的外保护镜片一起向前上方翻起，但这种面罩又有很多弊端不太受到操作工的欢迎，比如护目镜必需尽量设计在面罩靠前的位置远离眼睛，否则护目镜翻不起来，导致同样大小视窗相对视线变窄，面罩重心也前移引起受力变差，特别是翻起护目镜后面罩中心向前和上方移动，头颈将受到加倍的杠杆力；同时护目镜翻起还会妨碍操作，还有护目镜翻起的同时外保护镜片也被翻起，面罩内部还要设计一层防护要求和前保护镜一样的透明密封保护镜片；尤其护目镜是自动可变色号的大视窗护目镜，以上弊端会更严重，因为自动可变色号护目镜比较重，整个外翻部分就会比较笨重，面罩整体重量会大幅增加，因此，这类产品的使用推广受到很大影响。
如申请号：201710845243.9，公开一种电焊工防护面罩，包括面罩，所述面罩上方设有护目镜盒，其特征在于，所述护目镜盒下部固定有下镜片(相当于本申请中的内保护镜片)，护目镜盒的上部与下部铰接，可旋转120度，护目镜盒上部固定有上镜片(相当于本申请中的护目镜)，所述下镜片为透明镜片，所述上镜片为黑色镜片，所述面罩后部设有固定绳，所述固定绳为弹性绳，与面罩连接处可做180度旋转。护目镜盒能够上翻，因此，为了保护需设计下镜片，护目镜盒翻起后，面罩重心前移，且下镜片视野较小，不便于操作。
总结，现有技术有普通头戴式翻盖焊接面罩、自动滤光翻盖焊接面罩，共同的缺点是，护目镜和外保护镜片同时向外翻起，影响面罩的外部结构，因为外保护镜片被掀起内部还要重复设计一层透明的保护镜片；由于护目镜有外翻功能，特别是护目镜翻起后，面罩的重心将向前向上移动，这就给操作工头颈增加一个额外的杠杆力并且重心不稳；护目镜前移相对视线变窄；护目镜外翻时，护目镜容易被焊渣飞溅、打磨飞溅和灰尘造成污染，面罩整体重量增大，如此种种对使用者造成太多副作用。
需要说明的是：上述文中的护目镜可以是固定色号(即固定透过率))的滤镜，也可以是自动变光的滤镜。
特别是当下人们自我保护意识的提高，许多操作工都要求面罩上加装新风送风系统及密封罩布，由于环境空气被电焊污染操作工即使停止焊接，也不能取下带有送风系统的面罩，否则将吸入被污染的空气，这就要求面罩视窗必需是高透明的、大视野的，否则会给工作带的不便，甚至带来安全隐患。
公开于该背景技术部分的信息仅仅旨在增加对本发明的总体背景的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域一般技术人员所公知的现有技术。
发明内容
本发明所要解决的技术问题在于：提供了一种解决上述背景技术中外翻式面罩易产生重心不稳、面罩偏重、视线不佳、护目镜易被损坏和污染等缺点的护目镜内掀式面罩。
本发明是通过以下技术方案解决上述技术问题的：本发明公开一种护目镜内掀式面罩，包括面罩体、护目镜、前保护镜、连杆机构；前保护镜固定在面罩体前侧，护目镜固定在连杆机构上，连杆机构能够调节护目镜上下移动及旋转的连接在面罩体两侧，所述护目镜处于面罩体内部。本发明采用护目镜内掀的方式，避免了外翻式的护目镜在外翻时容易被焊接飞溅、打磨飞溅和灰尘污染；避免了外翻式的护目镜造成的整体面罩重心前移、重心不稳的缺陷；护目镜能够内掀，将能够适应了不能将面罩摘下的场合，适应场合更广泛，更灵活；使得前保护镜可以够大够宽，视线佳；且本结构简单使得整个面罩更加简洁、轻便。
优选的，所述连杆机构包括连杆架、摇臂连杆，摇臂连杆的一端通过第一连接轴能够转动的连接在面罩体的侧面，摇臂连杆的另一端通过第二连接轴固定连接连杆架的中部，连杆架置于面罩体的内部，连杆架的一端与护目镜固定连接，另一端通过第三连接轴能够滑动的连接在面罩体上，第一连接轴、第二连接轴、第三连接轴依次远离面罩体的前侧。本发明通过摇臂连杆的旋转带动连杆架上下运动和旋转，使得面罩体的重心不会前移，避免对颈部造成的压力；第一连接轴、第二连接轴、第三连接轴依次远离面罩体的前侧，保证第二连接轴 绕固定的第一连接轴旋转时，连杆架的运动矢量方向为前上方。
优选的，所述连杆架的前端为竖直结构，其上设有用于与护目镜连接的多个连接孔，护目镜通过连接孔与连杆架连接；所述连杆架的尾端设有水平的滑槽，第三连接轴穿过滑槽，并固定在面罩体上，连杆架的中部设有与摇臂连杆连接的圆孔。本发明通过连接孔与护目镜可以实现可拆卸连接，便于更换和安装；滑槽的设置使为了保证护目镜上下运动和旋转时能够到达设定的位置空间，并限制连杆架的自由运动，保证护目镜在规定轨迹上的可控运动。
优选的，还包括扇形的限位板，限位板固定在面罩体上并盖在摇臂连杆的外部，限位板远离第一连接轴的一端设有扇形槽；限位板朝向面罩体内部的一侧设有第一空心圆柱体，第一圆柱体设置在限位板的小端，摇臂连杆的一端设有套筒，套筒能够旋转的套接在第一空心圆柱体上，第一连接轴与第一空心圆柱体配合连接。限位板的设置可以实现摇臂连杆固定的载体，不用全部直接安装在面罩体上，能够实现摇臂连杆与面罩体的活动连接，实现摇臂连杆旋转的自由度和生产工艺的简化，限位板盖在摇臂连杆外侧，也能在一定程度上保护摇臂连杆，限位板与面罩体尽量密封连接。
优选的，还包括一个回力弹簧，回力弹簧套接在套筒外，且回力弹簧的两端均折弯，底端插入摇臂连杆上，顶端固定在限位板上。回力弹簧的设置，能够使得向下旋转摇臂连杆时更加省力，也能利用部分弹力将护目镜压紧在面罩体的窗口上，增加密封性。
优选的，所述摇臂连杆与连杆架连接的一端设有手柄，手柄设置在背向面罩体的一侧，并穿过扇形槽延伸至限位板外，手柄的顶端设有卡扣，卡扣为凹型结构，限位板远离第一连接轴的一端设有至少两个卡槽，卡扣的一端卡接在卡槽内，另一端卡接在卡槽外，摇臂连杆上朝向面罩体内部的一侧设有第二空心圆柱体，第二连接轴与第二空心圆柱体配合连接。
本发明中卡扣与卡槽的配合，使得护目镜活动于至少两个工位，且在任何一个工位处均能够得到定位，保证使用的稳定性，特别是，当护目镜处于额头前侧时；第二连接轴与第二空心圆柱体的固定连接实现连杆架中部与摇臂连杆的固定连接。
优选的，所述面罩体为半包围式结构，其前侧设有安装前保护镜的开口和与护目镜配合的窗口，两侧设有与限位板对应的扇形孔，限位板固定连接在扇形孔处。
优选的，还包括送风系统，送风系统包括送风管、送风口，送风口固定在面罩体顶部内侧面上，送风管连接送风口。送风系统的设置能够为较为密封或者完全密封的面罩体内部提供新鲜的空气。
优选的，所述送风口为发散状结构，送风口包括若干分送风口。送风口设置为发散状能够使得风吹的更为分散和均匀。
优选的，所述护目镜的两侧还设有太阳能供电板。使得电量能够通过太阳能获取，使用 更加方便、环保。
优选的，所述护目镜是固定色号的护目镜或自动滤光可变色号的护目镜或放大镜。
本发明相比现有技术具有以下优点：
(1)本发明采用内掀护目镜的方式，实现护目镜能够在面罩内部和佩戴者头面部的狭小空间通过连杆机构实现护目镜的上下移动并旋转，避免了护目镜在外翻时容易被焊接飞溅、打磨飞溅和灰尘污染；以及避免了现有技术中外翻的护目镜，使得整体面罩重心前移、面罩偏重的缺陷；护目镜能够上下移动和旋转，将能够适应了不能将面罩摘下的场合，适应场合更广泛，更灵活；本护目镜内掀后视线可以直接通过宽大透明的前保护镜观察工件和环境，使得视线清晰宽广；且本结构简单使得整个面罩更加简洁、轻便、适用；也无需同时设置2道透明的前保护镜片了，只需设置一道前保护镜即可；
(2)本发明通过摇臂连杆的旋转带动连杆架向前上方运动，使得面罩体的重心不会前移，避免对颈部造成的压力，且此连杆机构，结构简单、操作方便；本发明通过连接孔与护目镜可以实现可拆卸连接，便于更换和安装；连杆架上滑槽的设置是为了适应护目镜上下移和旋转时能够到达设定的位置空间，并限制连杆架的自由活动，保证护目镜在一定范围内的可控运动；限位板的设置，能够将摇臂连杆与面罩体活动连接，进而保持摇臂连杆旋转的自由度和生产工艺的简化，限位板盖在摇臂连杆外侧，也能在一定程度上保护摇臂连杆；回力弹簧的设置，能够使得向下旋转摇臂连杆时更加省力，也能利用部分弹力将护目镜压紧在面罩体的窗口上，密封更可靠；
(3)送风系统的设置能够为较为密封或者完全密封的面罩体内部提供新鲜的空气；送风口设置为发散状能够使得风吹的更为分散和均匀；
(4)该面罩轻便，其外表无改变，使用方便；
(5)前保护镜够宽、够大，保证大视野；
(6)使用时，与眼睛距离较近，视线较好，使用舒适度得到提高。
附图说明
图1是本发明实施例一的一种护目镜内掀式面罩的结构示意图；
图2是本发明实施例一的一种护目镜内掀式面罩的结构示意图；
图3是实施例一的连接机构与护目镜连接结构示意图；
图4是实施例一的连接机构与护目镜连接结构示意图；
图5是实施例一中的连杆架的结构示意图；
图6是实施例一中滑套的结构示意图；
图7是实施例一中第三连接轴的结构示意图；
图8是实施例一中摇臂连杆与限位板连接结构示意图；
图9是实施例一中第一封板与第二封板的连接结构示意图；
图10是实施例一中第一封板与第二封板的连接结构示意图
图11是实施例一中摇臂连杆与限位板的连接结构示意图；
图12是实施例一中限位板的结构示意图；
图13是实施例一种卡扣的结构示意图；
图14是实施例二中摇臂连杆与连接件的结构示意图；
图15是实施例四的一种护目镜内掀式面罩的结构示意图；
图16是护目镜处于使用状态的工作原理图；
图17是护目镜处于工作位置和上掀位置(虚线)示意原理图。
图中标号：面罩体1、护目镜2、前保护镜3、连杆机构4、连杆架41、滑槽411、腰型滑道4111、圆孔412、摇臂连杆42、手柄421、卡扣4211、第二空心圆柱体422、套筒423、回力弹簧424、滑套43、凸起431、第一连接轴5、第二连接轴6、第三连接轴7、第一分体71、第二分体72、限位板8、扇形槽81、卡槽82、第一空心圆柱体83、缺口84、第一封板85、连接孔851、第二封板86、送风系统9、送风管91、送风口92。
具体实施方式
下面对本发明的实施例作详细说明，本实施例在以本发明技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于下述的实施例。
实施例一：
如图1-3所示，本实施例一种护目镜内掀式面罩，包括面罩体1、护目镜2、前保护镜3、连杆机构4、第一连接轴5、第二连接轴6、第三连接轴7、限位板8；前保护镜3固定在面罩体1前侧，护目镜2固定在连杆机构3上，连杆机构3能够调节护目镜2旋转的连接在面罩体1两侧，连杆机构4能够调节护目镜2往上旋转，所述护目镜2处于面罩体1内部，前保护镜3的后侧，距离眼睛更近；第一连接轴5、第三连接轴7为固定状态，第二连接轴6为可以做弧形运动状态，且第一连接轴5、第二连接轴6、第三连接轴7的位置依次远离护目镜2。
本实施例中，参考工作原理图16-17，护目镜2设置在面罩体1的内部，使用时，与眼睛距离较近，视线较好，使用舒适度得到提高，不使用时，将护目镜2旋转至上方，面罩体1的外部结构不变，整个面罩的重心不会前移；护目镜2在工作位置和上掀位置始终都在面罩内部，避免被焊接飞溅、打磨飞溅和灰尘污染造成的损坏，另外，前保护镜3够宽、够大，保证视野够大。
本实施例中的护目镜可以是固定色号(即：固定透过率)的护目镜，也可以是自动滤光可变色号(即：可变透过率)的护目镜，同样也可以是放大镜等其他适宜使用场合的镜片。
如图1-3所示，结合图12，本实施例中，所述面罩体1为半包围式结构，可采用现有规范设计的面罩体1进行改进，其前侧设有安装前保护镜3的开口和与护目镜2进行紧密配合的窗口，两侧设有与限位板8对应的扇形孔，限位板8通过卡接、螺丝连接、粘接等方式固定在扇形孔上，并保证连接处的密封性，摇臂连杆42固定通过套筒423套接在限位板8的第一空心圆柱体83上，并通过第一连接轴5固定，得以实现摇臂连杆42的一端固定在面罩体1上，另一端做旋转运动；为了优化使用，使用时，在面罩体1的后侧还设有后防护罩，后防护罩多为密封罩布，后防护罩与面罩体1形成一个能够容纳头部的空腔；面罩体1上还设有多个旋钮，其功能为调节护目镜的色号和灵敏度等，或者一些旋钮是用来调节使用时头带等的松紧度，均为现有技术中已经能够实现的技术方案。因此，本实施例中的面罩外形无大的改变，没有外翻或者外凸的护目镜，显得更加的轻便、更加美观。
如图3所示，结合图4、5所示，其中图3中的右侧为隐藏限位板8和卡扣4211的结构，方便对比，所述连杆机构4包括连杆架41、摇臂连杆42，摇臂连杆42的一端通过第一连接轴5能够转动的连接在面罩体1的外部，摇臂连杆42可以绕第一连接轴5在一定范围内的旋转，摇臂连杆42的另一端通过第二连接轴6固定连接连杆架41的中部，连杆架41置于面罩体1的内部，通过摇臂连杆42的旋转带动连杆架41的水平方向和竖直方向上的移动，连杆架41的一端与护目镜2固定连接，另一端通过第三连接轴7能够滑动的连接在面罩体1上；该连杆机构4能够保证护目镜2旋转上翻的同时，护目镜2整体上移和向后旋转，可以保证不与头部和面罩体1干涉。
如图5所示，结合图3-4所示，连杆架41如拉长的“Z”字结构，其中，尾部为水平结构，中部设有圆孔412，用于与摇臂连杆42连接，所述连杆架41的前端为竖直折弯边结构，其上设有用于与护目镜2连接的若干连接孔，护目镜2可以通过螺钉能够更换的连接在连杆架41上，便于零件损坏后，易于更换。所述连杆架41的尾端设有水平的滑槽411，所述滑槽411为腰型孔，第三连接轴7穿过滑槽411后，并固定在面罩体1上，滑槽411能够在第三连接轴7的限位下进行水平向上滑动。
如图4-6所示，滑槽411处还套接一个滑套43，滑套为U型结构，连杆架41的尾部能够滑动的插在“U型结构的内部”，其中，U型结构的开口端与连杆架41用于第三连接轴7穿过的部分相通，另外，结合图5所示，滑槽411处、朝向面罩体1的一侧(内侧面)设有凸起的腰型滑道4111，腰型滑道411的尾端为开口设置，用于凸起431的插入，图6中所示的滑套43的下半部分的上面设有凸起431，该凸起431的宽度尺寸小于腰型滑道4111的宽 度，这样，凸起431就能够卡入腰型滑道4111内，且实现凸起431与腰型滑道4111能够滑动，滑套43的上半部分置于连杆架41的外侧面，第三连接轴7由面罩体1外往面罩体1内的方向，依次穿过面罩体1、滑套43的上半部分、滑槽411、滑套43的下半部分，其中滑套43的下半部分为实板，能够封住滑槽411，使在护目镜2处于工作位置时，滑套43把整个滑槽411密封起来，防止佩戴者的头发等进入滑槽411，护目镜上掀时把头发搅入；再者，密封的滑槽411比较美观；滑槽411的设置更有利于连杆架41在内平稳移动。
如图7所示，第三连接轴7为分体式结构，包括第一分体71和第二分体72，第一分体71的一端为带有内螺纹的圆柱体结构，另一端为凸起(相当于螺栓的螺帽，起到限位的作用)；第二分体72的一端为能够与内螺纹螺纹配合的、带有外螺纹的实心圆柱体结构，另一端设有凸起。本实施例仅为一种第三连接轴7的结构，实际上还可以由螺栓、螺母直接连接。
如图8-12所示，结合图3所示，图3中的右侧部分为隐藏限位板8和卡扣4211的结构，便于与左侧进行比较，本实施例中的扇形结构的限位板8，限位板8盖在摇臂连杆42的外部，并固定在面罩体1上，限位板8的背面(朝向面罩体1内部的一侧)设有与第一连接轴5连接的第一空心圆柱体83，第一空心圆柱体83的设置使为了与第一连接轴5配合连接将限位板8固定在面罩体1上，第一连接轴5与第一空心圆柱体83的空心内部固定，可以采用螺纹固定、过盈配合固定均可，即第一连接轴5通过面罩体1的内部穿过面罩体1后与第一空心圆柱体83连接，摇臂连杆42与第一空心圆柱体83连接处为套筒423，套筒423套接在第一空心圆柱体83上，并不固定，即套筒423可以在第一空心圆柱体83上转动，本实施例中的摇臂连杆42、手柄421、套筒423为一体式结构，手柄421穿过扇形槽81并延伸至限位板8外，套筒423处于限位板8的另一侧(在图11中，手柄421位于限位板左侧底部，套筒423位于限位板右侧顶部)，在套筒423外还设有一个回力弹簧424，回力弹簧424的一端插入摇臂连杆42上，另一端卡在限位板8上的缺口84上，缺口84位于限位板8的边缘处，此时的回力弹簧424保持一定的弹力，如图9-10所示，为了保证回力弹簧424套接在套筒423时不掉下来及密封性与美观性，还设置了第一封板85，卡接在限位板8上、套筒423外，第一封板85为扇形板，与限位板8的形状相适应，小端设有用于第一连接轴5穿过的连接孔851，与缺口84对应的位置，设有缺口84'，回力弹簧424限位在缺口84与缺口84'形成的空间内；弹力的作用下，能够使旋转摇臂连杆42向下旋转时更加省力，一定弹力的存在能够使护目镜2的下边缘与面罩体1的窗口紧贴，保证密封性。为了优化密封性、美观等要求，还可以在于第一封板84的同一侧，设置第二封板86，卡接在限位板8上，第一封板85与第二封板86分置于第二空心圆柱体422两侧，第一封板85与第二封板86之间形成一个弧形道。
如图11所示，摇臂连杆42上与手柄421对应的位置设置第二空心圆柱体422，第二空 心圆柱体422与摇臂连杆42为一体式结构，结合图5所示，连杆架41上设有与第二连接轴6对应的圆孔412，相应的，面罩体1两侧设有与限位板8对应的扇形孔，第二空心圆柱体422穿过连杆架41上的圆孔412与由面罩体1内部穿过的第二连接轴6固定配合连接，实现连杆架41的中部与摇臂连杆42固定连接。
如图12-13所示，结合图3所示，限位板8的大端设有扇形槽81；所述摇臂连杆42与连杆架41连接的一端设有手柄421，手柄421伸出扇形槽81外。限位板8的尾部设有至少两个卡槽82，本实施例中为两个卡槽82，手柄421内部为空心，内部设有竖直方向安装的弹簧，弹簧上设有卡扣4211，如图13所示，卡口4211为凹型结构，凹型的一端能够卡接在卡槽82内，另一端在卡槽82外侧，本实施例通过两个卡槽82实现护目镜2的两个工位的定位，当然还可以设置为三个卡槽82等等，根据实际需要进行设置；弹簧还可以由弹片等其他弹性件替代。
结合图4所示，其中靠下的卡槽82与手柄421上的卡扣4211卡住时，护目镜2为垂直状态，即使用状态；不使用护目镜2时，两手同时按住两边的卡扣4211的另一端，压缩弹簧使卡扣4211内缩，卡扣4211不再卡接在卡槽82上，顺势操作手柄421沿第一连接轴5旋转，移至靠上的卡槽82后，松开卡扣4211的另一端，在压缩弹簧的作用下，卡扣4211弹出卡入靠上的卡槽82实现定位，此时可以固定护目镜2处于头顶处，并不会下移。
本实施例的操作过程，如图16-17所示，当护目镜2处于眼睛前侧，即使用状态时，滑槽411的最右端与第三连接轴7贴合(即位置4)，摇臂连杆42处于靠下的位置(即位置1)，当需要将护目镜上移时，结合图4所示，两手同时按住两侧的卡扣4211，压缩弹簧使卡扣4211内缩，卡扣4211不再卡接在靠下卡槽82上，顺势操作手柄421沿第一连接轴5旋转，移至靠上的卡槽82后，松开卡扣4211，在弹簧的作用下，卡扣4211卡入靠上的卡槽82实现定位，此时，摇臂连杆42处于靠上的位置(即位置2)，因摇臂连杆42向前、向上运动，滑槽411在第三连接轴7的作用下，进行水平向上的滑动，此时，滑槽411的最左端与第三连接轴7贴合(即位置3)，护目镜2固定于额头前侧，旋转的过程中，护目镜2的下边缘一直处于同一竖直面上，没有产生倾斜，可以用最小的空间实现护目镜按设定的位置移动；
当需要将护目镜放下到工作位置时，两手同时按住两侧的卡扣4211，压缩弹簧使卡扣4211内缩，卡扣4211不再卡接在靠上的卡槽82上，顺势操作手柄421沿第一连接轴5旋转，移至靠下的卡槽82后，松开卡扣4211，在弹簧的作用下，卡扣4211卡入靠下的卡槽82实现定位，此时，滑槽411的最右端与第三连接轴7贴合(即位置4)，摇臂连杆42处于靠下的位置(即位置1)。
实施例二：
如图14所示，本实施例二与实施例一的区别在于：第二空心圆柱体422设置在一个连接件44上，连接件44与摇臂连杆42为分体式结构，第二空心圆柱体422未直接设置在摇臂连杆42上；
所述摇臂连杆42与连杆架41之间通过一个连接件44连接，连接件44固定连接在摇臂连杆42上，可以是螺丝连接、卡接、粘接等均可，具体的，连接在手柄421与套筒423之间，保证连杆架41的中部与摇臂连杆42的端部固定连接，在连接件44上与手柄421对应的位置处设有与第二连接轴6固定连接的第二空心圆柱体422，连杆架41上设有与第二连接轴6对应的圆孔412，相应的，面罩体1两侧设有与限位板对应的扇形孔，扇形孔是为了适应第二连接轴6做弧线运动时的空间，第二空心圆柱体422穿过连杆架41上的圆孔与由面罩体1内部穿过的第二连接轴6固定配合连接，实现连杆架41的中部与摇臂连杆42固定连接，可以是螺纹固定连接、过盈配合连接等能够实现固定连接的其他方式；本实施例中，设置一个连接件422的目的是为了便于摇臂连杆42、卡扣4211、第二空心圆柱体422的生产工艺，以及与限位板8、压缩弹簧的安装。
实施例三：
本实施例三与实施例一的区别在于：摇臂连杆42实现定位的方式不同，实施例中通过卡扣4211与两个卡槽82实现定位；本实施例通过采用定位销插入卡槽82的方式进行定位。
限位板8的尾部设有至少两个卡槽82，本实施例中为两个卡槽82，手柄421内部为空心，当手柄421移至一个卡槽82处时，手柄的空心处于卡槽82对齐，此时，将定位销插入卡槽82并延伸至手柄421内部的空心处，实现定位；当需要更换工位时，将定位销拔出，手柄421移至另一个卡槽82处，将定位销插入卡槽82并延伸至手柄421内部的空心处，实现其他位置的定位。
实施例四：
如图15所示，与实施例一的不同在于：在实施例一的基础上，该面罩体1还包括送风系统9；
本实施例中的送风系统9包括送风管91、送风口92，送风口92固定在面罩体顶部内侧面上，送风管91连接送风口92。所述送风口92为发散状结构，送风口92包括若干分送风口，分送风口可以向头前部、两侧进行送风，避免朝同一方向送风，造成操作人员的不适。
作为优化结构，实施例一、实施例二、实施例三、实施例四中的面罩均为对称结构；其中连杆机构3、第一连接轴5、第二连接轴6、第三连接轴7、限位板8均为两个，设置在面罩体1两侧。
所述护目镜2的两侧还设有太阳能供电板，供电板的作用利用日光和电焊光给可变光的 护目镜供电，并通过面罩体1上的旋钮调节调节护目镜2的色号和灵敏度等。
实施例五：
与实施例一的区别在于，摇臂连杆42的旋转可以采用微型电机驱动，实现护目镜2上下移动和旋转的电动控制，更加便于操作、省力、自动化。。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (11)

  1. 一种护目镜内掀式面罩，其特征在于，包括面罩体、护目镜、前保护镜、连杆机构；前保护镜固定在面罩体前侧，护目镜固定在连杆机构上，连杆机构能够调节护目镜上下移动及旋转的连接在面罩体两侧，所述护目镜处于面罩体内部。
  2. 根据权利要求1所述的一种护目镜内掀式面罩，其特征在于，所述连杆机构包括连杆架、摇臂连杆，摇臂连杆的一端通过第一连接轴能够转动的连接在面罩体的侧面，摇臂连杆的另一端通过第二连接轴固定连接连杆架的中部，连杆架置于面罩体的内部，连杆架的一端与护目镜固定连接，另一端通过第三连接轴能够滑动的连接在面罩体上，第一连接轴、第二连接轴、第三连接轴依次远离面罩体的前侧。
  3. 根据权利要求2所述的一种护目镜内掀式面罩，其特征在于，所述连杆架的前端为竖直结构，其上设有用于与护目镜连接的多个连接孔，护目镜通过连接孔与连杆架连接；所述连杆架的尾端设有水平的滑槽，第三连接轴穿过滑槽，并固定在面罩体上，连杆架的中部设有与摇臂连杆连接的圆孔。
  4. 根据权利要求2所述的一种护目镜内掀式面罩，其特征在于，还包括扇形的限位板，限位板固定在面罩体上并盖在摇臂连杆的外部，限位板远离第一连接轴的一端设有扇形槽；限位板朝向面罩体内部的一侧设有第一空心圆柱体，第一圆柱体设置在限位板的小端，摇臂连杆的一端设有套筒，套筒能够旋转的套接在第一空心圆柱体上，第一连接轴与第一空心圆柱体配合连接。
  5. 根据权利要求4所述的一种护目镜内掀式面罩，其特征在于，还包括一个回力弹簧，回力弹簧套接在套筒外，且回力弹簧的两端均折弯，底端插入摇臂连杆上，顶端固定在限位板上。
  6. 根据权利要求4所述的一种护目镜内掀式面罩，其特征在于，所述摇臂连杆与连杆架连接的一端设有手柄，手柄设置在背向面罩体的一侧，并穿过扇形槽延伸至限位板外，手柄的顶端设有卡扣，卡扣为凹型结构，限位板远离第一连接轴的一端设有至少两个卡槽，卡扣的一端卡接在卡槽内，另一端卡接在卡槽外，摇臂连杆上朝向面罩体内部的一侧设有第二空心圆柱体，第二连接轴与第二空心圆柱体配合连接。
  7. 根据权利要求4所述的一种护目镜内掀式面罩，其特征在于，所述面罩体为半包围式结构，其前侧设有安装前保护镜的开口和与护目镜配合的窗口，两侧设有与限位板对应的扇形孔，限位板固定连接在扇形孔处。
  8. 根据权利要求1所述的一种护目镜内掀式面罩，其特征在于，还包括送风系统，送风系统包括送风管、送风口，送风口固定在面罩体顶部内侧面上，送风管连接送风口。
  9. 根据权利要求8所述的一种护目镜内掀式面罩，其特征在于，所述送风口为发散状结 构，送风口包括若干分送风口。
  10. 根据权利要求1所述的一种护目镜内掀式面罩，其特征在于，所述护目镜的两侧还设有太阳能供电板。
  11. 根据权利要求1所述的一种护目镜内掀式面罩，其特征在于，所述护目镜是固定色号的护目镜或自动滤光可变色号的护目镜或放大镜。
PCT/CN2019/077941 2019-01-24 2019-03-13 一种护目镜内掀式面罩 WO2020151062A1 (zh)

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