Protective mask device
By introducing limit rods and fittings into the wear unit of the protective mask, the problem of the elastic belt being offset due to sliding or external force is solved, and the stable fixation of the elastic belt is achieved, which improves the convenience of use sex.
Patent Information
- Application Number
- CN202420881685.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The elastic band of existing protective masks is prone to shifting due to sliding or external force during use, and requires frequent adjustments and is inconvenient to use.
A protective mask device is designed, and its wearable unit includes a limiting rod and a through-fitting member. The elastic belt is wound on the limiting rod, and the protruding part abuts against the through-fitting member to prevent the limiting rod from rotating and fixing the elastic belt. Location.
It effectively prevents the elastic belt from being unexpectedly displaced due to rotation of the limit lever, and is fixedly maintained in the better wear state after user adjustment, reducing the frequency of readjustment and improving the convenience of use.
Smart Images
Figure CN222425410U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a protective wearing article for operation, in particular to a protective mask device. Background Art
[0002] See also Figure 1 , is a conventional protective mask 1, comprising a frame 11, a shielding sheet 12 mounted on the frame 11, and a wearing mechanism 13 disposed on the frame 11. The wearing mechanism 13 comprises two pivots 131 respectively passing through opposite sides of the frame 11, a wearing member 132 pivotally disposed between the pivots 131, two adjustment components 133 respectively disposed on opposite sides of the wearing member 132, and an elastic band 134 connected between the adjustment components 133 and used to cooperate with the wearing member 132 to be worn on the head of an operator.
[0003] Next Read Figure 2 And cooperate Figure 1 Each of the adjustment components 133 has a round rod portion 138 for the elastic band 134 to be wound around, and a through-position portion 139 spaced from the round rod portion 138 and defining a through-position 137 for the elastic band 134 to be passed through. For one side of the elastic band 134, the elastic band 134 first passes through the through-position 137, then is wound around the round rod portion 138, and then passes through the through-position 137 again from the opposite direction. Therefore, when the user needs to adjust the wearing, he only needs to directly pull the elastic band 134, and by utilizing the characteristics of the elastic band 134 that can be slightly stretched and reset, the length of the elastic band 134 between the through-position portions 139 can be adjusted. After the adjustment is completed, the round rod portion 138 of each adjustment component 133, when part of the elastic band 134 is wrapped around it, will press against the opening of the slot 137 due to the shrinkage elasticity of the elastic band 134 itself, thereby exerting a limiting effect and maintaining the optimal wearing length of the elastic band 134 adjusted by the user.
[0004] However, when the elastic band 134 is wound around the round rod 138, since the round rod 138 is generally cylindrical, the elastic band 134 will inevitably slide, or the round rod 138 will slightly rotate and shift, or even the external force that is inevitable when the user wears it and performs operations, which will cause the original optimal wearing position adjusted to cooperate with the wearing member 132 to shift. Therefore, when the user wears the existing protective mask 1, the elastic band 134 still needs to be readjusted from time to time, which is very inconvenient to use and needs to be improved. Utility Model Content
[0005] The utility model aims to provide a protective mask device which can be fixed in a better wearing state after adjustment.
[0006] The utility model discloses a protective mask device, which comprises a main body unit and a wearing unit connected to the main body unit.
[0007] The main unit comprises a frame and a shielding sheet installed on the frame.
[0008] The wearing unit includes two pivot mechanisms respectively arranged on opposite sides of the frame, a wearing member pivotally arranged between the pivot mechanisms, two adjustment mechanisms respectively arranged on opposite sides of the wearing member, and an elastic band connected between the adjustment mechanisms and used to cooperate with the wearing member for wearing on the operator's head. Each of the adjustment mechanisms has a limit rod for winding the elastic band, and a through-piece that is spaced from the limit rod and defines a through-piece groove for the elastic band to pass through. The limit rod has a rod body portion extending in an axial direction, and at least one protrusion extending from the rod body portion in a direction deviating from the axial direction and used to abut against the through-piece.
[0009] In the protective mask device of the utility model, the limiting rod of the adjusting mechanism of the wearing unit has two protrusions respectively arranged at opposite ends of the rod body.
[0010] In the protective mask device of the utility model, each of the protruding parts of the limiting rod has at least one flat abutting edge.
[0011] The beneficial effect of the present invention is that when the user utilizes the adjustment mechanism to adjust the elastic band, since the limiting rod of each adjustment mechanism has the at least one protrusion, when the at least one protrusion abuts against the wear-through piece, the limiting rod will not rotate due to the shrinkage elasticity of the elastic band, so the elastic band will not produce unexpected displacement relative to the adjustment mechanism. Therefore, after the user applies force to complete the adjustment of the elastic band, the elastic band can be more fixed and maintained in the optimal wearing state adjusted by the user. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a perspective exploded view illustrating a conventional protective mask;
[0013] Figure 2 is a cross-sectional schematic diagram illustrating an adjustment component of a wearing mechanism of the existing protective mask;
[0014] Figure 3 is a three-dimensional exploded view illustrating an embodiment of the protective mask device of the utility model;
[0015] Figure 4 It is a three-dimensional picture, with Figure 3 Describe the completed assembly of the embodiment; and
[0016] Figure 5 It is a cross-sectional schematic diagram illustrating a situation where one of the adjustment mechanisms of a wearing unit of the embodiment adjusts an elastic band. DETAILED DESCRIPTION
[0017] The utility model is described in detail below with reference to the accompanying drawings and embodiments.
[0018] See also Figure 3 , 4 An embodiment of the protective mask device of the utility model comprises a main unit 2 and a wearing unit 3 connected to the main unit 2. The main unit 2 comprises a frame 21 and a shielding piece 22 mounted on the frame 21. It should be noted that this embodiment is described in the form of industrial processing operations such as welding and cutting that may generate strong light and sparks, so the shielding piece 22 is preferably made of a material that can shield strong light and has a shielding effect on the sparks of workpiece debris. However, in actual implementation, the form of this embodiment is not limited to this.
[0019] The wearing unit 3 includes two pivot mechanisms 31 respectively disposed on opposite sides of the frame 21, a wearing member 32 pivoted between the pivot mechanisms 31, two adjustment mechanisms 33 respectively disposed on opposite sides of the wearing member 32, and an elastic band 34 connected between the adjustment mechanisms 33 and used to cooperate with the wearing member 32 for wearing on the head of an operator. The wearing member 32 is generally suitable for positioning on the user's head or the brim of a safety helmet, thereby cooperating with the elastic band 34 to achieve the effect of positioning from opposite sides. In addition, the wearing member 32 can rotate relative to the frame 21 using the pivot mechanism 31, thereby adjusting the shielding direction of the shielding sheet 22.
[0020] See also Figure 5 And cooperate Figure 3Each of the adjustment mechanisms 33 has a limiting rod 331 for the elastic band 34 to be wound around, and a penetration member 332 which is spaced apart from the limiting rod 331 and defines a penetration groove 330 for the elastic band 34 to be penetrated. The limiting rod 331 has a rod body 336 extending along an axial direction, and two protrusions 337 which are respectively arranged at opposite ends of the rod body 336 and extend from the rod body 336 in a direction deviating from the axial direction. In this way, the elastic band 34 can be wound around the rod body 336 of each limiting rod 331, and the protrusions 337 produce a limiting effect from opposite sides of the elastic band 34, thereby preventing the elastic band 34 from falling off from opposite ends of the rod body 336, thereby ensuring the stability of the mutual assembly between the components. In addition, each of the protrusions 337 has two parallel and spaced apart flat abutment edges 339 , so that the protrusions 337 can be used to abut against the penetration member 332 .
[0021] In order to make the length of the elastic band 34 match the wearing member 32, the user can directly apply force to the elastic band 34 along the extending direction of the elastic band 34, and the elastic band 34 will be stretched and extended, and the width will be narrowed, so that the friction between the elastic band 34 and the limiting rod 331 can be overcome to move in the through slot 330 of the through-piece 332, thereby achieving the purpose of adjusting the length of the elastic band 34 between the adjustment mechanisms 33. When the elastic band 34 is no longer subjected to the external force of stretching, the protrusion 337 of each limiting rod 331 of the adjustment mechanism 33 will generally abut against the through-piece 332 on the same side with one of the abutting edges 339, so that each limiting rod 331 will not rotate, thereby greatly reducing the displacement of the elastic band 34 due to the rotation of any limiting rod 331, and thus the elastic band 34 can be fixed and maintained in a better state after adjustment by the user, which can meet the user's wearing needs.
Claims
1. A protective mask device, comprising a main unit and a wearing unit connected to the main unit, wherein the main unit comprises a frame and a shielding sheet mounted on the frame; characterized in that: The wearing unit includes two pivot mechanisms respectively arranged on opposite sides of the frame, a wearing piece pivotally arranged between the pivot mechanisms, two adjustment mechanisms respectively arranged on opposite sides of the wearing piece, and an elastic band connected between the adjustment mechanisms and used to cooperate with the wearing piece for being worn on the operator's head. Each of the adjustment mechanisms has a limiting rod for winding the elastic band, and a passing piece spaced from the limiting rod and defining a passing groove for passing the elastic band, wherein the limiting rod has a rod body portion extending along the axial direction, and at least one protrusion extending from the rod body portion in a direction deviating from the axial direction and used to abut against the passing piece.
2. The protective mask device according to claim 1, characterized in that: The limiting rod of the adjusting mechanism of the wearing unit has two protrusions respectively arranged at opposite ends of the rod body.
3. The protective mask device according to claim 1 or 2, characterized in that: Each of the protruding portions of the limiting rod has at least one flat abutting edge.