CN107678175A - A kind of removable eyesight correction device and fixing means for being built in full facepiece mask - Google Patents

Abstract

The invention discloses a detachable vision correction device built in a full-face mask and a fixing method, which are used to solve the problem of blurred vision of a person whose vision is to be corrected when using a full-face mask of respiratory protection with naked eyes. The vision correcting device includes a spectacle frame without temples and a spectacle frame support. The spectacle frame is fixedly connected with the spectacle frame support as a whole; the bottom of the spectacle frame support is a torsion spring clip, and the spring clip is directly clamped at the center of the mouth and nose mask inside the full face mask; the twist The vertical clamping length of the spring clip is adjustable, and the front and rear splints of the torsion spring clip are respectively covered with anti-slip rubber sleeves to prevent the spectacle frame from loosening in the left, right, up and down directions in the mask. The fixing method that the support member is clamped at the mouth and nose mask inside the full face mask is applicable to all kinds of common full face masks on the market, and there is no need to configure a special face mask for those whose eyesight needs to be corrected, which saves investment in face masks. The vision correction device is integrally built into the full face mask, which does not affect the airtightness of the full face mask.

Description

A detachable vision correction device built in a full-face mask and its fixing method

technical field

The invention relates to the technical field of personal special labor protection products in the fields of petroleum, chemical industry, mining, metallurgy, military affairs, fire protection, emergency relief, sanitation and epidemic prevention, science and technology environmental protection, etc., and particularly relates to a kind of eyesight device built in a protective full-face mask for the respiratory system in the petrochemical field. Orthotic devices and fixation methods.

Background technique

According to statistics, more than 95% of occupational poisoning is caused by harmful substances entering the body through respiratory organs, so full-face masks are effective labor protection products to ensure the health and safety of special workers. For the ordinary full-face masks produced on the market at present, the audience is all people with normal naked eye vision. If the person whose vision is to be corrected keeps the glasses he wears and wears this type of full-face mask, it will cause the full-face mask to not be tightly sealed, and then cause the full-face mask to fail to achieve the respiratory protection function. However, there are great inconveniences and potential safety hazards when people whose eyesight needs to be corrected wear full-face masks in special workplaces.

In view of the above problems, if a person whose eyesight needs to be corrected wears a full-face mask with contact lenses, this method is not advisable in an emergency because it takes a long time to wear contact lenses and does not rule out people with allergic symptoms who wear contact lenses. CN 205127192 U (Meng Fanjun) and others invented the vision correction structure applied in the gas mask, which needs to be additionally provided with a boss connected to the vision correction structure on the inner side of the mask, and the upper and lower limit screws need to be screwed at the same time when the structure adjusts the height of the glasses , more time-consuming, and not very practical in emergency situations; CN 204864595 U (Zhao Yong) etc. invented a kind of air respirator face shield vision correction tool holder, wherein there are many truss structural parts, the production is relatively complicated, and the face shield There are square holes on the face screen, which not only affect the strength of the face screen, but also cost a lot of modification; CN 202459892 U (Yang Faping) and others invented the air respirator spectacle frame, the spectacle frame is fixed on the upper and lower edges of the face screen through the upper and lower card slots , the fixing method causes the spectacle frame to be only suitable for placing on a mask of a certain geometric shape and size. This spectacle frame does not possess universality, and marketing is restricted.

Contents of the invention

The purpose of the present invention is to provide a vision correction device and fixing method that is universal, easy to install or remove, and does not change the original full-face mask structure or parts, aiming at the defects of the existing vision correction technology used in full-face masks.

The purpose of the present invention is achieved like this:

A vision correction device built in a full-face mask, the device includes two parts: a spectacle frame without temples and a spectacle frame support member, and the spectacle frame is fixedly connected with the support member as a whole.

In the above-mentioned vision correction device, the spectacle frame support has the function of fastening the vision correction device in the full face mask, preventing the spectacle frame from shaking, and adjusting the vertical position of the vision correction device in the full face mask. Function.

In the above-mentioned vision correction device, the profile of the side view of the spectacle frame support is "L"-shaped; the spectacle frame support includes a torsion spring clip; In the middle of the center, the vision correction device is fixed in the mask as a whole; the vertical clamping length of the torsion spring clip is adjustable to adapt to the positions of the eyes of different wearers; the clamping force of the torsion spring clip is relatively large , and the two splints before and after the torsion spring clip are equipped with anti-slip rubber sleeves respectively, in order to increase the friction force between the splint and the mouth and nose mask, and prevent the spectacle frame without temples from loosening in the left, right, up and down directions in the mask.

In the above vision correction device, the vision correction device can be freely installed or removed by manipulating the torsion spring clip.

The above-mentioned vision correction device is integrally built into the full-face mask, which does not affect the airtightness of the full-face mask.

The present invention also provides a fixing method of a vision correction device built into a full-face mask, the vision correction device is fixed at the center of the mouth and nose mask inside the full-face mask; The non-slip rubber sleeve is used to enhance the stability of the vision correction device in the full face mask.

In the above method for fixing the vision correction device, the vision correction device is clamped by the torsion spring clip at the center of the mouth and nose mask inside the full face mask to fix it in the upper and lower directions;

In the above method for fixing the vision correction device, the vision correction device uses the anti-slip rubber sleeve to prevent the mirror frame from shaking.

The obvious advantages of the present invention are:

The vision correction device is directly clamped to the center of the mouth and nose mask (silicone or rubber material) inside the full-face respiratory protective mask by twisting the spring clip, and the clamping length of the twist spring clip can be adjusted to adapt to the positions of the eyes of different wearers. Thereby, the universality of the vision correction device for different styles of full-face masks on the market is greatly improved.

The vision correction device is installed or removed by twisting the spring clip manually, which is convenient and quick, and there is no need to configure a special mask for the person whose vision is to be corrected, which greatly saves the investment cost of the mask.

The clamping force of the torsion spring clip is large, and the non-slip rubber sleeve on the splint can prevent the frame without temples from loosening in the left and right, up and down directions. Therefore, the supporting member can ensure a clear and wide field of vision without shaking when the person whose eyesight is to be corrected wears the full-face mask for operation.

The fixing method of the vision correction device disclosed by the present invention does not add or modify any structure or parts of the full face mask, thus ensuring the functional integrity of the original full face mask.

Description of drawings

Fig. 1 is an assembly drawing of the vision correction device of the present invention;

Fig. 2 is the assembly schematic diagram of torsion spring of the present invention and central axis thereof;

Fig. 3 is a schematic side view of the present invention built into a full-face mask;

Fig. 4 is a schematic front view of the present invention built into a full-face mask;

1. Face screen, 2 Spectacle frame without temples, 30. Spectacle frame support, 4. Mouth and nose mask, 5. Head mold, 6. Buckle.

detailed description

Referring to Fig. 1 and Fig. 2, a vision correction device built in a full-face mask provided by a preferred embodiment of the present invention includes two parts: a spectacle frame without temples 2 and a spectacle frame support 30, the spectacle frame 2 and the spectacle frame The supporting member 30 is fixedly connected as a whole.

In the above-mentioned vision correction device, the profile of the side view of the support member is "L"-shaped; the support member is provided with a torsion spring clip; Front splint anti-slip rubber sleeve 306, rear splint anti-slip rubber sleeve 301. The spring clip cooperates with the anti-slip rubber sleeve 306 and the anti-slip rubber sleeve 301 to fix the vision correction device in the upper and lower directions and left and right directions, so as to prevent the vision correction device from shaking in the full face mask; The spring clip has a certain clamping length for adjusting the vertical position of the vision correction device in the full face mask.

In the above vision correction device, the vision correction device can be freely installed or removed by manipulating the spring clip.

Referring to Fig. 3 and Fig. 4, the present invention also provides a fixing method of a vision correction device built in a full-face mask. The vision correcting device is fixed at the center of the mouth and nose mask 4 inside the full face mask.

The vision correcting device is fixed up and down and left and right through the spring clip, anti-slip rubber sleeve 306, and anti-slip rubber sleeve 301;

What has been described above are only preferred embodiments of the present invention. For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention.

Claims (6)

1. A vision correction device built in a full-face mask, the device includes two parts, a spectacle frame without temples and a spectacle frame support, and it is characterized in that: the vision correction device is fixedly connected by the spectacle frame and the support as a whole. 2. The vision correction device according to claim 1, wherein the spectacle frame support has the function of fastening the vision correction device in a full face mask, preventing the spectacle frame from shaking, and adjusting the vision. Function of the vertical position of the orthotic within the full face mask. 3. The vision correction device according to claim 2, wherein the profile of the side view of the spectacle frame support is "L" shaped; the spectacle frame support comprises a torsion spring clip; the torsion spring clip directly It is clamped at the center of the mouth and nose mask inside the full-face mask of respiratory protection, so that the vision correction device is integrally fixed in the mask; the vertical clamping length of the torsion spring clip is adjustable to adapt to the positions of the eyes of different wearers The clamping force of the torsion spring clip is relatively large, and the front and rear splints of the torsion spring clip are respectively equipped with anti-slip rubber sleeves, which are used to increase the friction between the splint and the mouth and nose mask, and prevent the spectacle frame without temples from being placed on the face mask. Loosen along the left and right, up and down directions. 4 . The vision correction device according to claim 3 , wherein the vision correction device can be freely installed or removed by manipulating the torsion spring clip. 5. A method for fixing a vision correction device built into a full face mask for respiratory protection, characterized in that the vision correction device is fixed at the center of the mouth and nose mask inside the full face mask. 6. The vision correction device fixing method according to claim 5, characterized in that, the vision correction device carries out the upward and downward direction at the center of the mouth and nose mask inside the full face mask through the torsion spring clip and the anti-slip rubber sleeve. And the left and right directions are fixed to prevent the frame from shaking.