阅读说明：本技术 一种可更换近视镜片的防辐射铅眼镜 (Radiation-proof lead glasses with replaceable myopia lenses ) 是由 司晓云 韦波 刘春梅 侯耀华 王万田 李梅 谭龙泉 葛振华 朱芳菲 于 2020-07-15 设计创作，主要内容包括：本发明涉及一种可更换近视镜片的防辐射铅眼镜。包括两个对称布置的眼镜单元,眼镜单元包括镜框、镜架和鼻托,镜框内设置有用于卡装铅镜片的第一卡槽以及用于卡装近视镜片的第二卡槽,第二卡槽设置在靠近鼻托一侧,镜架内设置有弹性顶推机构,弹性顶推机构用于顶推近视镜片、以使近视镜片能够夹持固定在弹性顶推机构和第二卡槽之间；鼻托通过第一弹性件固定在镜框上,鼻托和镜框之间设置有第一斜齿机构；两个眼镜单元之间设置有间距调节机构；两个眼镜单元的镜架端部均设置有磁吸式固定带。通过采用本发明的可更换近视镜片的防辐射铅眼镜,方便了近视人群的佩戴使用,实现了对铅眼镜瞳距的调整,还实现了对鼻托位置的调整。(The invention relates to a pair of radiation-proof lead glasses with replaceable myopia lenses. The glasses comprise two glasses units which are symmetrically arranged, each glasses unit comprises a glasses frame, a glasses frame and a nose support, a first clamping groove used for clamping a lead lens and a second clamping groove used for clamping a myopia lens are arranged in the glasses frame, the second clamping groove is arranged at one side close to the nose support, an elastic pushing mechanism is arranged in the glasses frame, and the elastic pushing mechanism is used for pushing the myopia lens so that the myopia lens can be clamped and fixed between the elastic pushing mechanism and the second clamping groove; the nose support is fixed on the mirror frame through a first elastic piece, and a first helical tooth mechanism is arranged between the nose support and the mirror frame; a distance adjusting mechanism is arranged between the two glasses units; the end parts of the spectacle frames of the two spectacle units are provided with magnetic absorption fixing belts. By adopting the anti-radiation lead glasses with the replaceable myopia lenses, the wearing and the use of myopia people are facilitated, the pupil distance of the lead glasses is adjusted, and the position of the nose support is also adjusted.)

1. The utility model provides a radiation-proof lead glasses of removable myopia lens which characterized in that: the glasses comprise two glasses units which are symmetrically arranged, each glasses unit comprises a glasses frame, a glasses frame and a nose support, a first clamping groove used for clamping a lead lens and a second clamping groove used for clamping a myopia lens are formed in the glasses frame, the second clamping groove is formed in one side close to the nose support, an elastic pushing mechanism is arranged in the glasses frame and used for pushing the myopia lens so that the myopia lens can be clamped and fixed between the elastic pushing mechanism and the second clamping groove; the nose support is fixed on the mirror frame through a first elastic piece, and a first helical tooth mechanism for adjusting the position of the nose support is arranged between the nose support and the mirror frame; an interval adjusting mechanism for adjusting the interval to realize interpupillary distance adjustment is arranged between the two glasses units; two the mirror holder tip of glasses unit all is provided with magnetism and inhales formula fixed band.

2. A replaceable myopia lens radiation-resistant lead spectacles according to claim 1, wherein: the interval adjustment mechanism is including adjusting pole, direction draw-in groove and regulation card, the direction draw-in groove sets up the top of picture frame, it slides the assembly in the direction draw-in groove to adjust the pole direction, adjust card and adjust pole overlap joint, it is provided with the skewed tooth mechanism of second that is used for adjusting the displacement volume to adjust the card and adjust between the pole, adjust the card with the picture frame direction assembly of sliding.

3. A replaceable myopia lens radiation-resistant lead spectacles according to claim 2, wherein: the guide clamping groove is provided with a first opening and a second opening, the first opening is used for inserting the adjusting rod into the guide clamping groove, and the adjusting card is assembled at the second opening in a sliding mode in a guide mode.

4. A radiation-resistant lead spectacles with replaceable myopia lenses according to claim 3, wherein: the interval adjustment mechanism further comprises a second elastic piece, one end of the second elastic piece is connected with the adjusting clamping piece, the other end of the second elastic piece is connected with the mirror bracket, and the second elastic piece is used for popping up the adjusting clamping piece from the second opening when the adjusting clamping piece slides.

5. A replaceable myopia lens radiation-resistant lead spectacles according to claim 2, wherein: one end of the adjusting card is provided with a sliding part, and the mirror frame is provided with a sliding groove which is assembled with the sliding part in a guiding and sliding manner.

6. A replaceable myopia lens radiation-resistant lead spectacles according to claim 2, wherein: the glasses frame of the two glasses units is provided with the guide clamping grooves, the two ends of the adjusting rod are inserted into the corresponding guide clamping grooves respectively, and the two ends of the adjusting rod are assembled with the corresponding adjusting clamping pieces in a meshed mode through the second helical gear mechanisms.

7. A replaceable myopia lens radiation-resistant lead spectacles according to claim 1, wherein: elasticity top pushing mechanism includes mounting groove, adjustment button, driving medium, third elastic component, fourth elastic component and V type spare, be provided with third skewed tooth mechanism between the cell wall of adjustment button and mounting groove, the one end and the adjustment button of third elastic component are connected fixedly, the other end and mirror holder and are connected fixedly, the third elastic component is used for pushing away adjustment button to third skewed tooth mechanism department, the one end and the adjustment button of driving medium are connected, the other end wear out from the mounting groove and with V type spare fixed connection, the fourth elastic component sets up between V type spare and the mirror holder that corresponds.

8. A radiation-resistant lead spectacles with replaceable myopia lenses according to claim 7, wherein: the fourth elastic piece is a conical spring, one end of the conical spring with the larger size is fixedly connected with the spectacle frame, and the other end of the conical spring with the smaller size is used for pushing the V-shaped piece.

9. A replaceable myopia lens radiation-resistant lead spectacles according to claim 1, wherein: the first elastic piece is an elastic fixing band which is arranged in the mirror bracket in a penetrating mode, and two ends of the elastic fixing band are fixedly connected with the nose pads.

10. A replaceable myopia lens radiation-resistant lead spectacles according to claim 1, wherein: the magnetic type fixing band comprises a fixing outer sleeve and a permanent magnet fixed in the fixing outer sleeve, and the fixing outer sleeve and the corresponding mirror bracket are arranged at a set included angle.

Technical Field

The invention relates to the technical field of radiation-proof lead glasses, in particular to radiation-proof lead glasses with replaceable myopia lenses.

Background

Interventional surgeons often need to perform surgical procedures under X-ray fluoroscopy, and medical personnel engaged in interventional procedures must be protected from radiation, which is particularly important for protecting eyes, because radiation can affect the human body. Currently, the eyes are mainly protected by wearing radiation-proof lead glasses, but the existing radiation-proof lead glasses have the following problems: 1) most of the existing lead glasses are plane mirrors, which cannot meet the wearing requirements of the myopia people; 2) the frame and the frame of the lead glasses are mostly integrally formed, so that the interpupillary distance of the lead glasses cannot be flexibly adjusted, and the wearing requirements of different people cannot be met; 3) the nose pads of the lead glasses are mostly fixed, and cannot be suitable for the sizes of nose bridges of different people; 4) the fixed band of lead glasses is mostly fixed for the ligature, and this kind of mode is wasted time and energy on the one hand, and on the other hand also can not be fine fix lead glasses.

Disclosure of Invention

The invention aims to provide anti-radiation lead glasses with replaceable near-sighted lenses, which are used for solving the technical problems of the lead glasses in the background technology.

In order to realize the purpose, the invention provides a pair of radiation-proof lead glasses with replaceable near-sighted lenses, which adopts the following technical scheme:

a pair of radiation-proof lead glasses with replaceable myopia lenses comprises two glasses units which are symmetrically arranged, each glasses unit comprises a glasses frame, a glasses frame and a nose support, a first clamping groove used for clamping the lead lenses and a second clamping groove used for clamping the myopia lenses are formed in the glasses frame, the second clamping groove is formed in one side close to the nose support, an elastic pushing mechanism is arranged in the glasses frame and used for pushing the myopia lenses so that the myopia lenses can be clamped and fixed between the elastic pushing mechanism and the second clamping groove; the nose support is fixed on the mirror frame through a first elastic piece, and a first helical tooth mechanism for adjusting the position of the nose support is arranged between the nose support and the mirror frame; an interval adjusting mechanism for adjusting the interval to realize interpupillary distance adjustment is arranged between the two glasses units; two the mirror holder tip of glasses unit all is provided with magnetism and inhales formula fixed band.

Further, interval adjustment mechanism is including adjusting pole, direction draw-in groove and regulation card, the direction draw-in groove sets up the top of picture frame, it slides the assembly in the direction draw-in groove to adjust the pole direction, adjust card and adjust pole overlap joint, it is provided with the skewed tooth mechanism of second that is used for adjusting the displacement volume to adjust the card and adjust between the pole, adjust the card with the picture frame direction assembly of sliding.

Furthermore, the guide clamping groove is provided with a first opening and a second opening, the first opening is used for inserting the adjusting rod into the guide clamping groove, and the adjusting card is assembled at the second opening in a guide sliding mode.

Further, interval adjustment mechanism still includes the second elastic component, the one end and the regulation card of second elastic component are connected, the other end is connected with the mirror holder, the second elastic component is used for will adjusting the card and pop out from the second opening part when adjusting the card and sliding.

Furthermore, one end of the adjusting card is provided with a sliding part, and the mirror frame is provided with a sliding groove which is assembled with the sliding part in a guiding manner.

Furthermore, the glasses frames of the two glasses units are provided with the guide clamping grooves, two ends of the adjusting rod are respectively inserted into the corresponding guide clamping grooves, and two ends of the adjusting rod are respectively assembled with the corresponding adjusting clamping pieces through the second helical gear mechanisms in a meshed mode.

Further, elasticity thrustor includes mounting groove, adjustment button, driving medium, third elastic component, fourth elastic component and V type spare, be provided with third skewed tooth mechanism between the cell wall of adjustment button and mounting groove, the one end and the adjustment button of third elastic component are connected fixedly, the other end and mirror holder and are connected fixedly, the third elastic component is used for pushing away adjustment button to third skewed tooth mechanism department, the one end and the adjustment button of driving medium are connected, the other end is worn out in the mounting groove and with V type spare fixed connection, the fourth elastic component sets up between V type spare and the mirror holder that corresponds.

Furthermore, the fourth elastic element is a conical spring, one end of the conical spring with a larger size is fixedly connected with the spectacle frame, and the other end of the conical spring with a smaller size is used for pushing the V-shaped element.

Further, first elastic component is the elastic fixation area, the elastic fixation area is worn to establish in the mirror holder, the both ends of elastic fixation area all hold in the palm with the nose and are connected fixedly.

Further, formula fixed band is inhaled to magnetism includes fixed overcoat and fixes the permanent magnet in fixed overcoat, fixed overcoat all is the setting for the contained angle with the mirror holder that corresponds and arranges.

Compared with the prior art, the radiation-proof lead glasses with replaceable myopia lenses have the beneficial effects that: by adopting the anti-radiation lead glasses with the replaceable myopia lenses, due to the arrangement of the first clamping groove and the second clamping groove, the lead lenses are clamped in the first clamping groove, and a wearer only needs to clamp the myopia lenses between the second clamping groove and the elastic pushing mechanism, so that the glasses are convenient for the myopes to wear. Due to the fact that the distance adjusting mechanism is arranged, the distance adjusting mechanism can adjust the distance between the two glasses units, and therefore the interpupillary distance of the lead glasses can be adjusted. The nose holds in the palm is connected fixedly through first elastic component and picture frame, is provided with first skewed tooth mechanism between nose holds in the palm and the picture frame, and first skewed tooth mechanism can realize the dislocation adjustment of nose support and picture frame, and then has realized holding in the palm the adjustment of position to the nose. In addition, the end parts of the spectacle frames are provided with the magnetic type fixing belts, and the two magnetic type fixing belts can be fixedly connected in an adsorption mode, so that the lead spectacles are convenient to fix.

Drawings

FIG. 1 is a schematic view of the overall structure of a pair of radiation-proof lead spectacles with replaceable near vision lenses according to an embodiment of the invention;

FIG. 2 is a schematic diagram of a spacing adjustment mechanism for a pair of radiation-resistant lead spectacles with replaceable near vision lenses according to an embodiment of the present invention;

FIG. 3 is a schematic view of an elastic pushing mechanism of a pair of radiation-proof lead spectacles with replaceable near vision lenses according to an embodiment of the present invention;

FIG. 4 is a schematic view of the nose piece mounting of a pair of radiation-proof lead spectacles with replaceable near vision lenses according to an embodiment of the invention;

fig. 5 is a schematic view of a magnetic-type fixing strap of the anti-radiation lead glasses with replaceable near-vision lenses according to the embodiment of the invention.

In the figure, 1-glasses unit, 2-glasses frame, 3-glasses frame, 4-elastic pushing mechanism, 5-spacing adjusting mechanism, 6-first clamping groove, 7-second clamping groove, 8-lead lens, 9-nose support, 10-magnetic type fixing belt, 11-adjusting rod, 12-adjusting clamping piece, 13-second elastic piece, 14-sliding piece, 15-sliding groove, 16-bolt, 17-mounting groove, 18-adjusting button, 19-third elastic piece, 20-driving piece, 21-fourth elastic piece, 22-V-shaped piece, 23-third oblique tooth mechanism, 24-first elastic piece, 25-fixing coat and 26-permanent magnet.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, preferred embodiments of the present invention relate to a pair of radiation-proof lead spectacles (hereinafter referred to as lead spectacles) with replaceable near vision lenses. The lead glasses comprise two glasses units 1 which are symmetrically arranged, each glasses unit 1 comprises a glass frame 2, a glass frame 3 and a nose support 9, a first clamping groove 6 for clamping a lead lens 8 and a second clamping groove 7 for clamping a myopia lens are arranged in the glass frame 2, the second clamping groove 7 is arranged on one side close to the nose support 9, an elastic pushing mechanism 4 is arranged in the glass frame 3, and the elastic pushing mechanism 4 is used for pushing the myopia lens so that the myopia lens can be clamped and fixed between the elastic pushing mechanism 4 and the second clamping groove 7; the nose support 9 is fixed on the spectacle frame 2 through a first elastic piece 24, and a first helical tooth mechanism for adjusting the position of the nose support 9 is arranged between the nose support 9 and the spectacle frame 2; an interval adjusting mechanism 5 for adjusting the interval to realize interpupillary distance adjustment is arranged between the two glasses units 1; two glasses frame 3 tip of glasses unit 1 all is provided with magnetism and inhales formula fixed band 10.

Specifically, the lead eyeglasses in the present embodiment also include two mirror-symmetrically arranged eyeglass units 1, each eyeglass unit 1 including a rim 2, a frame 3, and a nose pad 9, similar to other eyeglasses. In order to adjust the distance between the two glasses units 1 (i.e. to adjust the interpupillary distance), in the present embodiment, a distance adjusting mechanism 5 is disposed between the two glasses units 1, and as shown in fig. 2, the distance adjusting mechanism 5 includes an adjusting rod 11, a guiding slot, and an adjusting card 12. All be provided with a direction draw-in groove on two picture frames 2 in this embodiment, each direction draw-in groove all sets up at the top of picture frame 2 and extends the setting along the top frame. In this embodiment, two ends of the adjusting rod 11 are respectively inserted into the corresponding guiding slots. Each guide clamping groove in this embodiment all has first opening and second opening, and the first opening of two guide clamping grooves is arranged relatively in this embodiment, adjusts the both ends of pole 11 and inserts in the corresponding guide clamping groove through first opening respectively. The second opening all sets up the top position at the direction draw-in groove in this embodiment. The second opening is arranged to extend along the top rim of the frame 2, and the adjustment card 12 is slidably mounted in the second opening of the guide slot in this embodiment.

In this embodiment, each adjusting tab 12 is provided with a sliding member 14 towards an end of the corresponding frame 3, and the corresponding frame 3 is provided with a sliding slot 15, and the sliding slot 15 extends along a top edge of the frame 2. In this embodiment, the sliding member 14 is rod-shaped, one end of the sliding member 14 is fixedly connected to the adjusting card 12, and the other end is slidably guided in the sliding slot 15. In this embodiment, a second helical gear mechanism is disposed between each of two ends of the adjusting rod 11 and the corresponding adjusting card 12, the second helical gear mechanism includes a first helical gear portion disposed on the adjusting card 12 and a second helical gear portion disposed on the adjusting rod 11, the first helical gear portion and the second helical gear portion are engaged and assembled together, and both the first helical gear portion and the second helical gear portion include a plurality of oblique convex teeth.

The middle distance adjusting mechanism 5 further comprises a second elastic part 13, the second elastic part 13 is a spring, the number of the second elastic parts 13 is two, and the two second elastic parts 13 are respectively connected between the corresponding adjusting clamping pieces 12 and the corresponding guide clamping grooves. When two regulation cards 12 of sliding to the outside, the first skewed tooth portion of each regulation card 12 can separate with the second skewed tooth portion that corresponds on the regulation pole 11, at this moment, each regulation card 12 can pop out to the second opening part of draw-in groove from corresponding owing to the top push effect that receives second elastic component 13, then can realize adjusting the adjustment of adjusting pole 11 length between two picture frames 2 through dragging two picture frames 2, after adjusting pole 11 and finishing adjusting, with two regulation cards 12 impress corresponding second opening part again and with adjust pole 11 and correspond the end and re-engage fixed can, the meshing effect through second skewed tooth mechanism can realize adjusting the fixed of card 12 position, thereby the complete adjustment to the lead glasses interpupillary distance. In order to enhance the connection stability of the two glasses units 1, in this embodiment, a plug 16 is further disposed between the two glasses units 1, one end of the plug 16 is fixed to one of the glasses frames 2, and the other of the glasses frames 2 is provided with an insertion hole for inserting the plug 16, the plug 16 can move in the insertion hole, and the lateral displacement of the two glasses frames 2 is limited by the blocking effect of the plug 16 and the hole wall of the insertion hole, so that the situation that the two glasses frames 2 easily rotate around the adjusting rod 11 is avoided. In the present embodiment, the adjusting rod 11 is quadrangular, and the first opening is also rectangular, which can also limit the rotation of the frame 2.

In this embodiment, the two lens frames 2 are respectively provided with a first clamping groove 6 and a second clamping groove 7, and the first clamping groove 6 is located at the outer side of the second clamping groove 7. First draw-in groove 6 is ring groove in this embodiment, and lead lens 8 all clamps in first draw-in groove 6 along border all around, can avoid appearing the gap and causing the condition of radiation protection effect between lead lens 8 and picture frame 2 like this. Second draw-in groove 7 is the arc draw-in groove in this embodiment, and second draw-in groove 7 can enclose four fifths of the circumference of package myopia lens, and second draw-in groove 7 in each picture frame 2 all sets up in the one side that is close to nose pad 9. In this embodiment, each of the lens frames 3 is further provided with an elastic pushing mechanism 4 in cooperation with the second engaging groove 7.

As shown in fig. 3, the elastic pushing mechanism 4 of the present embodiment includes a mounting groove 17, an adjusting button 18, a transmission member 20, a third elastic member 19, a fourth elastic member 21, and a V-shaped member 22. In this embodiment, the mounting groove 17 is a rectangular groove, the mounting groove 17 is disposed on the inner side surface of the lens holder 3, and the adjustment button 18 is a wedge-shaped block. A third helical gear mechanism 23 is arranged between the adjusting button 18 and the mounting groove 17, and the structure and the function of the third helical gear mechanism 23 are the same as those of the second helical gear mechanism, and are not described again. The third helical gear mechanism 23 in this embodiment also includes a first helical gear portion disposed on the inner top surface of the mounting groove 17 and a second helical gear portion disposed on the adjustment button 18, and the position of the adjustment button 18 can be adjusted and fixed by meshing engagement of the first helical gear portion and the second helical gear portion.

In this embodiment, the third elastic members 19 are also springs, there are two third elastic members 19, one end of each of the two third elastic members 19 is fixedly connected to the inner bottom surface of the mounting groove 17, the other end of each of the two third elastic members 19 is fixedly connected to the adjustment button 18, and the third elastic members 19 can push the adjustment button 18 upward, so that the first helical tooth portion and the second helical tooth portion are engaged and assembled. In this embodiment, the transmission member 20 is a steel wire, one end of the transmission member 20 is connected and fixed with the adjustment button 18, and the other end of the transmission member 20 extends out of the installation groove 17 and is connected and fixed with the V-shaped member 22. In this embodiment, the V-shaped component 22 is a V-shaped clip, and the V-shaped component 22 is used for clipping with the edge of the myopic lens. The fourth elastic member 21 is disposed between the V-shaped member 22 and the frame 3 in this embodiment, the fourth elastic member 21 is a conical spring in this embodiment, one end of the conical spring with a larger size is fixedly connected to the frame 3, and the other end of the conical spring with a smaller size is used for pushing the V-shaped member 22. When the near vision lens needs to be fixed, the near vision lens is clamped into the second clamping groove 7, and then the other side of the near vision lens is clamped and fixed through the V-shaped piece 22. In the adjusting process, the adjusting button 18 can be moved to adjust the pre-tightening elastic force of the fourth elastic element 21, when the adjusting button 18 is moved, the adjusting button 18 can be pressed down firstly to separate the first helical tooth part and the second helical tooth part of the second helical tooth mechanism, then the adjusting button 18 is moved forwards or backwards, and finally the adjusting button 18 is moved upwards and is engaged with the mounting groove 17 for assembly.

In this embodiment, the nose pad 9 is fixed on the frame 3 through the first elastic member 24, the first elastic member 24 is an elastic fixing band in this embodiment, as shown in fig. 4, the elastic fixing band is inserted into the frame 3, and both ends of the elastic fixing band are connected and fixed with the nose pad 9. The nose pads 9 can be tightened against the frame 3 by the elastic force of the first elastic members 24. In the present embodiment, a first helical gear mechanism is provided between the nose pad 9 and the lens holder 3, and similarly to the second and third helical gear mechanisms 23, the first helical gear mechanism in the present embodiment also includes a first helical gear portion and a second helical gear portion that are engaged and fitted, wherein the first helical gear portion is provided on the lens holder 3, and the second helical gear portion is provided on the nose pad 9. When the position that the nose held in the palm 9 needs to be adjusted, hold in the palm 9 outside stretching to realize the separation of first skewed tooth portion and second skewed tooth portion, then upwards or move down nose holds in the palm 9, hold in the palm 9 to mirror holder 3 one side translation with the nose at last can, through the adjustment that realizes the nose and hold in the palm 9 upper and lower position with the different dogteeth meshing of first skewed tooth portion and second skewed tooth portion.

Formula fixed band 10 is all inhaled to magnetism all is provided with at the tip of each mirror holder 3 in this embodiment, and formula fixed band 10 is inhaled to magnetism includes fixed overcoat 25 and sets up the permanent magnet 26 in fixed overcoat 25, and permanent magnet 26 is rubidium magnet in this embodiment. Each of the fixed sleeves 25 is disposed at a set angle with respect to the corresponding frame 3, which in this embodiment is an obtuse angle. The permanent magnet 26 is arranged to enable the two magnetic-type fixing belts 10 to be connected and fixed in an adsorbing manner, so that the two lens frames 3 can be connected and fixed. In this embodiment, the fixing sheath 25 may be made of an elastic material, specifically, rubber or elastic plastic.

In summary, the embodiment of the invention provides a pair of radiation-proof lead glasses with replaceable myopia lenses, and by adopting the pair of radiation-proof lead glasses with replaceable myopia lenses, because the first clamping groove 6 and the second clamping groove 7 are arranged, the lead lens 8 is clamped in the first clamping groove 6, and a wearer only needs to clamp the myopia lenses between the second clamping groove 7 and the elastic pushing mechanism 4, the wearing and the use of the myopia lenses are facilitated for the myopia crowd. Due to the arrangement of the distance adjusting mechanism 5, the distance adjusting mechanism 5 can adjust the distance between the two glasses units 1, so that the interpupillary distance of the lead glasses can be adjusted. The nose holds in the palm 9 and is connected fixedly through first elastic component 24 and picture frame 2, is provided with first skewed tooth mechanism between nose holds in the palm 9 and the picture frame 2, and first skewed tooth mechanism can realize that the dislocation adjustment of nose holds in the palm 9 and picture frame 2, and then has realized holding in the palm the adjustment of 9 positions to the nose. In addition, the end part of each spectacle frame 3 is provided with the magnetic type fixing belt 10, and the two magnetic type fixing belts 10 can be fixedly connected in an adsorption mode, so that the lead glasses can be conveniently fixed.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.