Respirator mask strap fastener

Abstract

The utility model relates to the technical field of respiratory protective equipment, and specifically to a respirator oronasal mask strap fixing part, which is applied to the strap mechanism of a protective mask. The oronasal mask strap fixing part is composed of a fixing nail and a belt buckle, connected by the fixing nail center axis and the belt buckle positioning hole, and the axis connection can be rotated 360 degrees at will. The main advantages of the oronasal mask strap fixing part are that the strap and the mask body are firmly connected, the structure is simple, the replacement and installation are fast, the length and tightness of the strap can be adjusted at will, and the practicality is stronger.

Description

Technical Field

[0001] The utility model relates to the technical field of respirator protective products, in particular to a respirator mouth and nose mask hanging belt fixing part. Background Art

[0002] In industry, medicine and life, wearing a mask is a necessary protective item. With the development of science and technology, the mouth and nose mask that fits the face is mostly made of safer, more hygienic, comfortable and easy-to-clean silicone material. However, during wearing, the mouth and nose mask strap is often connected to the mask body by directly connecting the strap to the four corners of the mask body. Because the texture of silicone is very soft, the side of the mouth and nose mask is easily deformed and lifted up when connected to the headband, which greatly affects the safety and comfort. In order to make up for the shortcomings of the existing technology, a mouth and nose mask strap fixing mechanism is provided. Summary of the invention

[0003] In order to solve the above technical problems, the utility model provides a respirator oronasal mask strap fixing part, which is composed of a fixing pin and a belt buckle, and is connected by the central axis of the fixing pin and the belt buckle positioning hole. The fixing part is embedded in the mask body through the strap fixing pin and is fixed on the mask body in a limited position. The oronasal mask body is respectively punched with holes at four end points, and the hole diameter is smaller than the central axis diameter of the fixing pin. The mask body positioning hole and the fixing pin are interference fit. The silicone material mask body is soft, which is conducive to sealing.

[0004] The belt buckle is connected to the fixed nail shaft through the belt buckle positioning hole, and can rotate 360 ​​degrees at will, and is flexible to wear. The belt buckle is made of polypropylene hard material, and consists of a belt buckle positioning hole, a slide groove, a fixed nail insertion hole and a headband eye-shaped buckle. The belt buckle positioning hole is connected with the fixed nail shaft; the headband eye-shaped buckle is used to connect the headband, and the connection is convenient and firm, and the length of the headband can be adjusted arbitrarily, which is convenient and quick.

[0005] The fixing nail is made of hard material, and is composed of a nail cap, a nail shaft, an external limit and an internal limit, and is in a three-layer pagoda structure. The fixing nail is embedded in the cover body and connected with the belt buckle.

[0006] The strap buckle is a headband mesh buckle structure, and the headband mesh buckle is a fixed braided headband mechanism.

[0007] Technical effects and advantages of the utility model:

[0008] The utility model adopts a fixed nail center axis and a belt buckle positioning hole to ensure that the hanging belt and the cover body are firmly connected, has a simple structure, is quickly replaced and installed, and the length and tightness of the hanging belt can be adjusted arbitrarily, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the lanyard fixing part;

[0010] Figure 2 It is a schematic diagram of the external overall structure of the strap fixing part on the mouth and nose mask;

[0011] Figure 3 A schematic diagram of the installation of a strap fixing member on a mouth and nose mask;

[0012] Figure 4 This is a schematic diagram of the overall structure of the pendant fixing nail;

[0013] Figure 5 This is a schematic diagram of the overall buckle.

[0014] In the figure; 1. Strap fixing pin; 2. Strap buckle; 3. Headband; 4. Mouth and nose mask; 5. Strap fixing hole; 11. Fixing pin cap; 12. Fixing pin external limit; 13. Fixing pin internal limit; 14. Fixing pin shaft; 21. Strap buckle positioning hole; 22. Slide groove; 23. Fixing pin entry hole; 24. Headband eyelet buckle. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The invention of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The invention is selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various inventions with various modifications suitable for specific purposes.

[0016] See also Figures 1 to 5 In this embodiment, a respirator mouth and nose mask strap fixing device is provided, and the fixing device is composed of a fixing pin 1 and a belt buckle 2, which are connected by a fixing pin shaft 14 and a belt buckle positioning hole 21. The fixing pin shaft 14 should be smaller than the diameter of the belt buckle positioning hole 21 for clearance fit, and can be easily and freely rotated 360 degrees for easy wearing.

[0017] The oronasal mask 4 of the fixing part is provided with four-end positioning holes, and the hole diameter thereof should be smaller than the diameter of the central axis of the fixing nail. The fixing nail 1 is pressed into the positioning hole of the oronasal mask from the inside of the oronasal mask 4 with the fixing nail cap 11 as the head, so that the external limit 12 of the fixing nail passes through the positioning hole, and the wall shell of the oronasal mask 4 is embedded between the external limit 12 of the fixing nail and the internal limit 13 of the fixing nail. The distance between the external limit 12 of the fixing nail and the internal limit 13 of the fixing nail is smaller than the wall thickness of the oronasal mask 4; the diameter of the external limit 12 of the fixing nail should be larger than the diameter of the positioning hole of the oronasal mask, the diameter of the external limit 12 of the fixing nail and the nail cap is consistent, and the diameter of the internal limit 13 of the fixing nail is 3-5 times larger than the diameter of the positioning hole of the oronasal mask to ensure a firm seal.

[0018] The belt buckle 2 is axially connected with the fixed nail shaft 14 through the belt buckle positioning hole 21. The belt buckle 2 inserts its fixed nail insertion hole 23 into the fixed nail cap 11, and is pulled outward through the slide groove 22 to the position of the fixed nail shaft 14 to enter the belt buckle positioning hole 21; the belt buckle 2 and the fixed nail 1 are connected and positioned; the diameter of the fixed nail insertion hole 23 is larger than the diameter of the fixed nail cap, which is convenient for entry; the width of the slide groove 22 is 1-2mm smaller than the diameter of the fixed nail shaft 14, which can facilitate the nail shaft 14 to slide into the belt buckle positioning hole 21 and prevent it from falling off.

[0019] The strap buckle 2 is a headband eyelet buckle 24 structure, which is a fixed woven headband mechanism used to adjust the length of the strap. The mouth and nose mask can be adjusted to the most suitable wearing state according to one's own head shape. The strap can be adjusted to the ideal length by gently pulling the strap of the movable section, which is convenient and practical.

[0020] Obviously, the invention described is only a part of the invention of the utility model, not the whole invention. Based on the invention in the utility model, all other inventions obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the utility model. The structures, devices and operating methods not specifically described and explained in the utility model shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A respirator mouth and nose mask strap fixing member, characterized in that: The fixing piece is composed of a fixing nail (1) and a belt buckle (2), which are connected via a fixing nail shaft (14) and a belt buckle positioning hole (21), wherein the fixing nail shaft (14) is smaller than the diameter of the belt buckle positioning hole (21).

2. The respirator mouth and nose mask strap fixing member according to claim 1, characterized in that The oronasal mask (4) of the fixing part is provided with four-end positioning holes, the hole diameter of which is smaller than the diameter of the central axis of the fixing nail. The fixing nail (1) is pressed into the oronasal mask positioning hole from the inside of the oronasal mask (4) with the fixing nail cap (11) as the head, so that the outer limit (12) of the fixing nail passes through the positioning hole, and the wall shell of the oronasal mask (4) is embedded between the outer limit (12) of the fixing nail and the inner limit (13) of the fixing nail. The distance between the outer limit (12) of the fixing nail and the inner limit (13) of the fixing nail is smaller than the wall thickness of the oronasal mask (4); the diameter of the outer limit (12) of the fixing nail is larger than the diameter of the oronasal mask positioning hole, the diameter of the outer limit (12) of the fixing nail and the nail cap is consistent, and the diameter of the inner limit (13) of the fixing nail is 3-5 times larger than the diameter of the oronasal mask positioning hole.

3. The respirator mouth and nose mask strap fixing member according to claim 1, characterized in that: The belt buckle (2) is axially connected to the fixing nail shaft (14) through the belt buckle positioning hole (21). The belt buckle (2) inserts its fixing nail insertion hole (23) into the fixing nail cap (11) and is pulled outwards through the slide groove (22) to the fixing nail shaft (14) to enter the belt buckle positioning hole (21), so that the belt buckle (2) and the fixing nail (1) are connected and positioned. The diameter of the fixing nail insertion hole (23) is larger than the diameter of the fixing nail cap, and the width of the slide groove (22) is 1-2 mm smaller than the diameter of the fixing nail shaft (14).

4. The respirator mouth and nose mask strap fixing member according to claim 1, characterized in that: The strap buckle (2) is a headband eyelet buckle (24) structure, and the headband eyelet buckle (24) is a fixed braided headband mechanism.

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