CN220175897U - Length regulator and respirator comprising same - Google Patents
Length regulator and respirator comprising same Download PDFInfo
- Publication number
- CN220175897U CN220175897U CN202320749386.0U CN202320749386U CN220175897U CN 220175897 U CN220175897 U CN 220175897U CN 202320749386 U CN202320749386 U CN 202320749386U CN 220175897 U CN220175897 U CN 220175897U
- Authority
- CN
- China
- Prior art keywords
- elastic
- side face
- length adjuster
- protruding portion
- adjusting cavity
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000009385 viral infection Effects 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to the technical field of respirators, and discloses a length adjuster and a respirator comprising the same, wherein the length adjuster comprises an adjuster body, and the peripheral wall of the adjuster body is provided with an upper side surface, a lower side surface, a left side surface and a right side surface; the upper side surface and the lower side surface are extrusion surfaces, the cavity wall corresponding to the left side surface of the adjusting cavity is provided with a first elastic bulge protruding inwards, the cavity wall corresponding to the right side surface of the adjusting cavity is provided with a second elastic bulge protruding inwards, and the first elastic bulge and the second elastic bulge are staggered mutually. Based on the structure, the gap between the first elastic bulge and the second elastic bulge can be adjusted according to whether extrusion is performed or not, so that different friction forces are provided, and the protection effect of a user when wearing the respirator is ensured.
Description
Technical Field
The utility model relates to the technical field of regulators, in particular to a length regulator and a respirator comprising the same.
Background
Because of the recent epidemic situation, people pay more and more attention to respiratory protection, respirator products such as masks, face pieces and the like have become necessary in epidemic prevention work and production and manufacture, and the face pieces have also been widely applied in the field of industrial dust prevention. In order to reduce the harm of virus infection or particulate matters to the respiratory system, people wear respirators with high protection effect for a long time in the working process. Respirators are generally classified into ear-hanging and head-wearing respirators, wherein the protective effect and comfort of the head-wearing respirators are relatively good. Because the characteristic dimensions of the head of different users are respectively characterized, the adjustment range provided by adopting the pure elastic webbing is limited, and when the head circumference of the user is large or small, the problem that the head band is too tight and uncomfortable or the head band is too loose, so that the protection effect is reduced exists.
To above-mentioned problem, current respirator is equipped with length adjuster on the connecting band generally, makes the length of connecting band have adjustability, and current length adjuster is the length through frictional force fixed connection area generally, and when the frictional force that the regulator brought was too big, it was too tight with the connecting band cooperation, led to being difficult to adjust the length of connecting band, and when the frictional force that the regulator brought was too little, it was too loose with the connecting band cooperation, led to appearing loosening slip, the problem that bandeau pulling force is slightly in the use to influence the protection effect.
Disclosure of Invention
It is an object of the present utility model to provide a length adjuster.
In order to achieve the above object, the present utility model provides a length adjuster comprising:
the adjuster body is provided with a first end and a second end which are oppositely arranged, the adjuster body defines an adjusting cavity, the adjusting cavity penetrates through the first end and the second end of the adjuster body along a first direction and is used for a connecting belt to penetrate through, and the peripheral wall of the adjuster body is provided with an upper side face, a lower side face, a left side face and a right side face;
wherein the upper side surface and the lower side surface are extrusion surfaces;
the adjusting cavity is provided with a first elastic bulge protruding inwards with the cavity wall corresponding to the left side face, the adjusting cavity is provided with a second elastic bulge protruding inwards with the cavity wall corresponding to the right side face, and the first elastic bulge and the second elastic bulge are staggered with each other.
In some embodiments of the present utility model, the first elastic protrusions are provided in at least two or more, and the first elastic protrusions are uniformly arranged along the first direction;
the second elastic protruding parts are arranged in at least two or more, and the second elastic protruding parts are uniformly arranged along the first direction;
a serpentine passage is formed between the first resilient protrusion and the second resilient protrusion.
In some embodiments of the present utility model, two or more first elastic protrusions arranged uniformly along the first direction are a first protrusion group, the first protrusion group is two or more groups, and the first protrusion group is arranged uniformly from the upper side surface toward the lower side surface;
the two or more second elastic protruding parts are arranged in a uniform manner along the first direction and are a second protruding group, the second protruding group is arranged into two or more groups, and the second protruding group is arranged in a uniform manner from the upper side face to the lower side face.
In some embodiments of the utility model, the first resilient protrusion has a first end and a second end, the first end of the first resilient protrusion being connected to the cavity wall of the adjustment cavity, the cross-sectional area of the first resilient protrusion in the first direction decreasing from the first end to the second end thereof.
In some embodiments of the utility model, the second resilient protrusion has a first end and a second end, the first end of the second resilient protrusion being connected to the chamber wall of the adjustment chamber, the cross-sectional area of the second resilient protrusion in the first direction decreasing from the first end to the second end thereof.
In some embodiments of the present utility model, a concave arc chamfer is provided at a position where the first end of the first elastic protruding portion is connected to the cavity wall of the adjusting cavity;
the first end of the second elastic bulge is connected with the position of the cavity wall of the adjusting cavity, and a concave arc-shaped chamfer is arranged at the position.
In some embodiments of the utility model, the chamfer is a round chamfer having a diameter of 0.1-1 mm.
In some embodiments of the utility model, the second end of the first resilient protrusion is rounded;
the second end of the second elastic protruding portion is arc-shaped.
In some embodiments of the utility model, the upper side is concavely curved;
and/or the number of the groups of groups,
the lower side surface is concave arc-shaped.
Another object of the present utility model is to provide a respirator that includes a respirator body, a connector strap, and a length adjuster as described above, wherein the connector strap is disposed through the second end of the adjustment chamber from the first end of the adjustment chamber.
Compared with the prior art, the utility model provides the length adjuster, which has the beneficial effects that:
the utility model provides a length adjuster which comprises an adjuster body, wherein the adjuster body is provided with a first end and a second end which are oppositely arranged, the adjuster body is limited to an adjusting cavity, the adjusting cavity penetrates through the first end and the second end of the adjuster body along a first direction and is used for a connecting belt to penetrate through, and the peripheral wall of the adjuster body is provided with an upper side face, a lower side face, a left side face and a right side face; the upper side surface and the lower side surface are extrusion surfaces, the cavity wall corresponding to the left side surface of the adjusting cavity is provided with a first elastic bulge protruding inwards, the cavity wall corresponding to the right side surface of the adjusting cavity is provided with a second elastic bulge protruding inwards, and the first elastic bulge and the second elastic bulge are staggered mutually. Based on the structure, when the extrusion surface is not extruded, the first elastic bulge part and the second elastic bulge part which are protruded inwards are abutted against the connecting belt to provide larger friction force, so that the connecting belt is difficult to pull or slide, and the connecting belt is prevented from loosening or sliding when being worn; when the upper side face and the lower side face are extruded simultaneously, the left side face and the right side face are outwards convexly deformed, the first elastic protruding portion and the second elastic protruding portion corresponding to the upper side face and the right side face are deformed towards the directions away from each other, and the gap between the first elastic protruding portion and the second elastic protruding portion is increased, so that the friction force to the connecting belt is reduced, the connecting belt is easy to pull, namely, the gap between the first elastic protruding portion and the second elastic protruding portion can be adjusted according to whether extrusion is carried out or not, different friction forces are achieved, and the protection effect of a user when wearing the respirator is guaranteed.
In addition, the utility model also provides a respirator, and the length adjuster is adopted, so that the tightness degree of the respirator is easy to adjust, the respirator is not easy to loose after adjustment, and the protection effect is good.
Drawings
FIG. 1 is a schematic view of the overall structure of a length adjuster according to an embodiment of the present utility model;
FIG. 2 is a schematic front view of a length adjuster according to an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a schematic structural view of a respirator of an embodiment of the present utility model.
In the figure: 100. a regulator body; 110. a regulating chamber; 121. an upper side; 122. a lower side surface; 123. a left side surface; 124. a right side surface; 130. a first elastic protrusion; 140. a second elastic protrusion; 150. a passage; 200. a respirator body; 300. and (5) connecting the belts.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.
It is to be understood that in the description of the present utility model, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.
It should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in FIG. 4, an embodiment of the present utility model provides a respirator that includes a respirator body 200, a connector strap 300, and a length adjuster. The respirator in this embodiment is a mask, but may be any other respirator such as a respirator. The connecting strap 300 may be a headband or an ear strap, and its two ends are respectively connected to different positions of the respirator body 200, and enclose a wearing position into which the head or the ear can extend.
Referring to fig. 1 and 3, the length adjuster includes an adjuster body 100 having oppositely disposed first and second ends, the adjuster body 100 defining an adjustment cavity 110, the adjustment cavity 110 extending through the first and second ends of the adjuster body 100 in a first direction for passing a connecting strap 300 therethrough, an outer peripheral wall of the adjuster body 100 having an upper side 121, a lower side 122, a left side 123 and a right side 124; the upper side 121 and the lower side 122 are extrusion surfaces, the cavity wall of the adjusting cavity 110 corresponding to the left side 123 is provided with a first elastic protrusion 130 protruding inwards, the cavity wall of the adjusting cavity 110 corresponding to the right side 124 is provided with a second elastic protrusion 140 protruding inwards, and the first elastic protrusion 130 and the second elastic protrusion 140 are staggered with each other, that is, a passage 150 for the connecting belt 300 to pass through is formed between them. Specifically, the regulator body 100 is made of a polymer material, preferably, a polymer material having elasticity such as silica gel, rubber, PE, PVC, EVA, POE, or the like. In use, the first end of the connecting belt 300, except for two ends, of the position self-adjuster body 100 is penetrated into the adjusting cavity 110 to the second end of the adjuster body 100, and the tightness degree of the respirator is adjusted by the length of the penetrating length of the connecting belt 300.
Based on the above structure, when the pressing surface is not pressed, the first and second elastic protrusions 130 and 140 protruding inward abut against the connection band 300, providing a large friction force, making it difficult for the connection band 300 to be pulled or slid, preventing the connection band 300 from being loosened or slid when worn; when the upper and lower sides 121 and 122 are simultaneously pressed, the left and right sides 123 and 124 are outwardly convexly deformed, the first and second elastic protrusions 130 and 140 corresponding thereto are deformed in a direction away from each other, and the gap therebetween is increased, thereby reducing the friction force to the connection strap 300, so that the connection strap 300 is easily pulled, i.e., the gap between the first and second elastic protrusions 130 and 140 can be adjusted according to whether to press or not, thereby having different friction forces, and ensuring the protective effect when the user wears the respirator.
Alternatively, as shown in fig. 3, in the present embodiment, the first elastic protrusions 130 are provided in at least two or more, and the first elastic protrusions 130 are disposed in a uniform arrangement along the first direction;
the second elastic protrusions 140 are provided in at least two or more, and the second elastic protrusions 140 are uniformly arranged along the first direction;
a serpentine passage 150 is formed between the first resilient protrusion 130 and the second resilient protrusion 140.
Alternatively, as shown in fig. 2, in the present embodiment, two or more first elastic protrusions 130 are provided in a first direction and are provided in two or more first protrusion groups, and the first protrusion groups are provided in a direction from the upper side 121 toward the lower side 122;
the two or more second elastic protrusions 140 uniformly arranged along the first direction are one second protrusion set, and the second protrusion set is two or more second protrusion sets, and the second protrusion sets are uniformly arranged from the upper side 121 toward the lower side 122. In this way, compared to setting the first elastic raised portion 130 and the second elastic raised portion 140 such that the upper side cavity wall of the self-adjusting cavity 110 extends to the lower side cavity wall thereof, setting a plurality of first raised groups/second raised groups, reducing the width of the single first elastic raised portion 130/second elastic raised portion 140 is beneficial to reducing the extrusion difficulty, and the gap between the first elastic raised portion 130/second elastic raised portion 140 and the upper side cavity wall and the lower side cavity wall of the adjusting cavity 110 is more beneficial to the outward deformation of the first elastic raised portion 130/second elastic raised portion 140; on the other hand, two or more first bump groups/second bump groups can still provide sufficient friction.
Alternatively, as shown in fig. 3, in the present embodiment, the first elastic protrusion 130 has a first end and a second end, the first end of the first elastic protrusion 130 is connected with the cavity wall of the adjustment cavity 110, and the cross-sectional area of the first elastic protrusion 130 in the first direction gradually decreases from the first end to the second end thereof.
Alternatively, as shown in fig. 3, in the present embodiment, the second elastic protrusion 140 has a first end and a second end, the first end of the second elastic protrusion 140 is connected with the cavity wall of the adjustment cavity 110, and the cross-sectional area of the second elastic protrusion 140 in the first direction gradually decreases from the first end to the second end thereof.
Optionally, in this embodiment, a concave arc chamfer (not shown in the figure) is provided at a position where the first end of the first elastic protrusion 130 is connected to the cavity wall of the adjusting cavity 110;
the first end of the second elastic protrusion 140 is provided with a concave arc-shaped chamfer at a position where it is connected to the cavity wall of the adjusting cavity 110.
Alternatively, in this embodiment, the chamfer is a round chamfer, the diameter of the chamfer being 0.1-1 mm.
Alternatively, in the present embodiment, the second end of the first elastic protrusion 130 is circular arc-shaped; the second end of the second elastic protrusion 140 has a circular arc shape.
Alternatively, as shown in fig. 1, in the present embodiment, the upper side 121 and the lower side 122 have the following implementations: (1) the upper side 121 is concavely curved; (2) the underside 122 is concave arc-shaped; (3) the upper side 121 and the lower side 122 are each concavely curved. Based on this, pressing of the upper side 121 and the lower side 122 by a finger is facilitated.
In summary, an embodiment of the present utility model provides a length adjuster, which is mainly composed of an adjuster body 100, having a first end and a second end disposed opposite to each other, wherein the adjuster body 100 defines an adjusting cavity 110, the adjusting cavity 110 penetrates through the first end and the second end of the adjuster body 100 along a first direction, for passing a connecting strap 300, and an outer peripheral wall of the adjuster body 100 has an upper side 121, a lower side 122, a left side 123 and a right side 124; the upper side 121 and the lower side 122 are extrusion surfaces, the cavity wall of the adjusting cavity 110 corresponding to the left side 123 is provided with a first elastic protrusion 130 protruding inwards, the cavity wall of the adjusting cavity 110 corresponding to the right side 124 is provided with a second elastic protrusion 140 protruding inwards, and the first elastic protrusion 130 and the second elastic protrusion 140 are staggered with each other. Compared with the prior art, the length adjuster has the following advantages:
when the extrusion surface is not extruded, the first elastic bulge part and the second elastic bulge part which are protruded inwards are abutted against the connecting belt to provide larger friction force, so that the connecting belt is difficult to pull or slide, and the connecting belt is prevented from loosening or sliding when being worn; when the upper side face and the lower side face are extruded simultaneously, the left side face and the right side face are outwards convexly deformed, the first elastic protruding portion and the second elastic protruding portion corresponding to the upper side face and the right side face are deformed towards the directions away from each other, and the gap between the first elastic protruding portion and the second elastic protruding portion is increased, so that the friction force to the connecting belt is reduced, the connecting belt is easy to pull, namely, the gap between the first elastic protruding portion and the second elastic protruding portion can be adjusted according to whether extrusion is carried out or not, different friction forces are achieved, and the protection effect of a user when wearing the respirator is guaranteed.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (10)
1. A length adjuster, comprising:
the adjuster body is provided with a first end and a second end which are oppositely arranged, the adjuster body defines an adjusting cavity, the adjusting cavity penetrates through the first end and the second end of the adjuster body along a first direction and is used for a connecting belt to penetrate through, and the peripheral wall of the adjuster body is provided with an upper side face, a lower side face, a left side face and a right side face;
wherein the upper side surface and the lower side surface are extrusion surfaces;
the adjusting cavity is provided with a first elastic bulge protruding inwards with the cavity wall corresponding to the left side face, the adjusting cavity is provided with a second elastic bulge protruding inwards with the cavity wall corresponding to the right side face, and the first elastic bulge and the second elastic bulge are staggered with each other.
2. The length adjuster according to claim 1, wherein:
the first elastic protruding parts are arranged in at least two or more, and the first elastic protruding parts are uniformly arranged along the first direction;
the second elastic protruding parts are arranged in at least two or more, and the second elastic protruding parts are uniformly arranged along the first direction;
a serpentine passage is formed between the first resilient protrusion and the second resilient protrusion.
3. The length adjuster according to claim 2, wherein:
the first elastic protruding parts are arranged in a uniform manner along the first direction, the first protruding groups are arranged into two or more groups, and the first protruding groups are arranged in a uniform manner from the upper side face to the lower side face;
the two or more second elastic protruding parts are arranged in a uniform manner along the first direction and are a second protruding group, the second protruding group is arranged into two or more groups, and the second protruding group is arranged in a uniform manner from the upper side face to the lower side face.
4. The length adjuster according to claim 1, wherein:
the first elastic protruding portion is provided with a first end and a second end, the first end of the first elastic protruding portion is connected with the cavity wall of the adjusting cavity, and the cross section area of the first elastic protruding portion along the first direction is gradually reduced from the first end to the second end of the first elastic protruding portion.
5. The length adjuster according to claim 4, wherein:
the second elastic protruding portion is provided with a first end and a second end, the first end of the second elastic protruding portion is connected with the cavity wall of the adjusting cavity, and the cross-sectional area of the second elastic protruding portion along the first direction is gradually reduced from the first end to the second end of the second elastic protruding portion.
6. The length adjuster according to claim 5, wherein:
a concave arc-shaped chamfer is arranged at the position where the first end of the first elastic bulge part is connected with the cavity wall of the adjusting cavity;
the first end of the second elastic bulge is connected with the position of the cavity wall of the adjusting cavity, and a concave arc-shaped chamfer is arranged at the position.
7. The length adjuster according to claim 6, wherein:
the chamfer is a round chamfer, and the diameter of the chamfer is 0.1-1 mm.
8. The length adjuster according to claim 1, wherein:
the second end of the first elastic protruding part is arc-shaped;
the second end of the second elastic protruding portion is arc-shaped.
9. The length adjuster according to claim 1, wherein:
the upper side surface is in a concave arc shape;
and/or the number of the groups of groups,
the lower side surface is concave arc-shaped.
10. A respirator comprising a respirator body, a connector strap, and a length adjuster according to any one of claims 1 to 9, the connector strap being disposed from a first end of the adjustment chamber through a second end of the adjustment chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320749386.0U CN220175897U (en) | 2023-04-06 | 2023-04-06 | Length regulator and respirator comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320749386.0U CN220175897U (en) | 2023-04-06 | 2023-04-06 | Length regulator and respirator comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220175897U true CN220175897U (en) | 2023-12-15 |
Family
ID=89115660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320749386.0U Active CN220175897U (en) | 2023-04-06 | 2023-04-06 | Length regulator and respirator comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220175897U (en) |
-
2023
- 2023-04-06 CN CN202320749386.0U patent/CN220175897U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5046192A (en) | Headset sun visor | |
| CN101415469A (en) | Harness for respiratory protection device | |
| US10688264B2 (en) | CPAP comfort seal | |
| US20040149280A1 (en) | Method and apparatus for preventing ear abrasion | |
| CN220175897U (en) | Length regulator and respirator comprising same | |
| CN219149069U (en) | Length regulator and respirator comprising same | |
| CN219149068U (en) | Length regulator and respirator comprising same | |
| CN111296957B (en) | Anti-falling mask | |
| CN212574223U (en) | Simple mask fixing device | |
| CN212754373U (en) | Head-mounted mask with adjustable tightness | |
| CN218650434U (en) | Comfortable head band with large opening | |
| CN216453488U (en) | Adjustable mask hangers rope | |
| CN211798347U (en) | Intelligent gas mask | |
| CN217012884U (en) | Gauze mask adjusting device of trace is tightened to prevention ear | |
| CN113842534A (en) | Exhaust assembly, frame assembly and patient interface device | |
| CN215455632U (en) | Protective facial mask that leakproofness is good | |
| CN214435771U (en) | Oxygen inhalation nose mask | |
| CN212088245U (en) | Mask adjusting belt | |
| CN211798138U (en) | Nose mask | |
| CN213939801U (en) | Novel head-wearing cup-shaped protective mask | |
| CN215013786U (en) | Head-mounted mask adjusting hook | |
| CN212139485U (en) | Mask ear belt connecting piece | |
| CN216906936U (en) | Mask with adjustable ear hanging belt | |
| CN217771558U (en) | Lace type protective mask | |
| CN214386241U (en) | Disposable medical mask |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |