CN209237101U

CN209237101U - Half face shield

Info

Publication number: CN209237101U
Application number: CN201821078641.9U
Authority: CN
Inventors: 王斯伟; 李佐华; 马闯; 屈铁成
Original assignee: Honeywell International Inc
Current assignee: Honeywell International Inc
Priority date: 2018-07-09
Filing date: 2018-07-09
Publication date: 2019-08-13
Anticipated expiration: 2028-07-09

Abstract

This application discloses a kind of half face shields.Half face shield includes: mask body；Belt comprising head frame and the headband connecting with the head frame, the head frame is for the half face shield to be fixed at first position；Cover board on the mask body is set, opening is equipped with wherein, for guiding the headband；And the guide post between the mask body and the cover board is set, the mask body and the cover board are contacted under the mask body and the installation condition of the cover board and for guiding the headband relative to the movement of the cover board.Half face shield according to the present utility model can be removed easily from the snout of user.

Description

Half face shield

Technical field

The utility model relates to respiratory protection fields, in particular to a kind of half face shield.

Background technique

Half face shield (also known as half-mask respirator) is the protector of respiration being worn on the snout of user.Its main application Have: the respiratory tract (such as the case where containing particulates emission in air) for preventing impurity and pollutant from entering user；Prevent using Person exhalation virus, bacterium or other pollutants be leaked in environment, thus avoid to environment or other people cause unfavorable shadow Ring (such as there are the larger environment for infecting hidden danger).

Half face shield is frequently provided with belt, for mask body to be supported at the snout of user.With " putting down formula (drop-down) " half face shield designed can allow for when temporarily without using half face shield (for example, user's needs are away from keyboard Water and food are talked or supplemented with people in contaminated area) it is put down, to discharge the snout space of user.

The existing half face shield for putting down formula design the problem is that: structure is complicated, and manufacture and installation are inconvenient；Head when putting down It is larger with suffered resistance, it is unfavorable for mask body and is quickly and easily removed from the snout of user；Or headband is exposed to Outside half face shield, influence overall beautiful.

Utility model content

The utility model proposes a kind of half face shields, can easily remove from the snout of user.

The half face shield proposed on one side according to the utility model, comprising:

Mask body；

Belt comprising head frame and the headband connecting with the head frame, the head frame is for the half face shield to be fixed on At first position；

Cover board on the mask body is set, opening is equipped with wherein, for guiding the headband；And

Guide post between the mask body and the cover board is set, in the mask body and the cover board The mask body and the cover board are contacted under installation condition and for guiding the headband relative to the movement of the cover board.

According to the half face shield that the utility model proposes on one side, card is equipped between the mask body and the cover board Buckle structure, for the mask body to be fixedly connected with the cover board.

According to the half face shield that the utility model proposes on one side, limit is equipped between the mask body and the cover board Position rib, is used to limit the position of the headband.

According to the half face shield that the utility model proposes on one side, the limit rib surrounds the port cloth of the mask body It sets, for preventing the headband from stopping the port of the mask body.

According to the half face shield that the utility model proposes on one side, the limit rib and the guide post are arranged in the lid On plate.

According to the half face shield that the utility model proposes on one side, groove body is equipped on the mask body, in the face Under cover main body and the installation condition of the cover board, the guide post is inserted into the groove body.

According to the half face shield that the utility model proposes on one side, the opening includes two edges for being located at the cover board The under shed that the upper opening being arranged symmetrically and two edges for being located at the cover board are arranged symmetrically, the guide post are located on described Opening.

According to the half face shield that the utility model proposes on one side, it is equipped with hasp structure in two ends of the headband, It is worked in coordination so that the half face shield is fixed on the second place.

According to the half face shield that the utility model proposes on one side, in the assembled state, the headband is successively guided By: between the upper opening, the top of the guide post, the guide post and the limit rib, under shed.

According to the half face shield that the utility model proposes on one side, the half face shield includes being arranged in the mask body two The filter box of side is used for purification gas.

The beneficial effects of the utility model include: the guide post by being arranged between mask body and cover board, Neng Gouke By ground seeker band relative to the movement of cover board/mask body, enable mask body easily from the snout of user It removes.

Detailed description of the invention

It is explained with reference to the disclosure of the utility model.It is to be appreciated that attached drawing is merely illustrative purpose, and simultaneously It is not intended to be construed as limiting the protection scope of the utility model.In the accompanying drawings, identical appended drawing reference is for referring to identical portion Part.Wherein:

Fig. 1 schematically illustrates the part of the half face shield proposed according to one embodiment of the utility model, wherein visual angle To see the back side to cover board；

Fig. 2 schematically illustrates the mask body in the half face shield proposed according to one embodiment of the utility model.

Specific embodiment

It is readily appreciated that, technical solution according to the present utility model, in the case where not changing the utility model in essence spirit, this field Those skilled in the art can propose the various structures mode and implementation that can be replaced mutually.Therefore, implement in detail below Mode and attached drawing are only the exemplary illustrations to the technical solution of the utility model, and are not to be construed as the complete of the utility model Portion or be considered as defines or limits technical solutions of the utility model.

It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc. Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts, and it is therefore possible to can root Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side Position term is construed to restricted term.

In the following description, various parameters and component are described for the embodiment of different configuration, these specific parameters Only it is used as example without making limitation to embodiments herein with component.

Embodiment combination Fig. 1 according to the present utility model and Fig. 2 shows.Half face shield includes: mask body 1；Belt (not shown) comprising head frame (not shown) and the headband 2 connecting with the head frame, the head frame is for consolidating the half face shield It is scheduled at first position；Cover board 3 on the mask body 1 is set, is equipped with opening 31,32 wherein, it is described for guiding Headband 2；And the guide post 4 between the mask body 1 and the cover board 3 is set, the mask body 1 with it is described The mask body 1 and the cover board 3 are contacted under the installation condition of cover board 3 and for guiding the headband 2 relative to described The movement of cover board 3.Herein preferably, the guide post 4 the mask body 1 with it is seamless under the installation condition of the cover board 3 Unoccupied place contacts the mask body 1 and the cover board 3, so that the headband 2 be avoided to be stuck in the guide post 4 and the mask master Between body 1 or the cover board 3 or the headband 2 bypasses the guidance of the guide post 4.By setting in mask body 1 and lid Guide post 4 between plate 3, can reliably movement of the seeker band 2 relative to 3/ mask body 1 of cover board so that mask body 1 It can easily be removed from the snout of user.

Generally, air inlet and air outlet can be equipped at the intermediate position of the mask body 1 and two sides.With outlet Mouth is arranged in for the intermediate position of the mask body 1, and the gas that user is breathed out is discharged by the gas outlet.In outlet Non-return air valve is equipped at mouthful, for ensuring that breathed out gas can only be discharged in user by the gas outlet, and cannot be by this Gas outlet sucks gas from external environment.The cover board 3(is sometimes also referred to as valve deck) it is mounted on the mask body 1, Protection can be provided for the Non-return air valve, and the cover board 3 can be removed from the mask body 1 when needed, from And be conducive to maintenance.Correspond at the position of the gas outlet of the mask body 1 on the cover board 3 and is equipped with outlet lattice Grid are conducive to that the gas that user is breathed out is discharged.The half face shield can also include that 1 two sides of mask body are arranged in Filter box, the filter box (such as is breathed out by the air in contaminated surrounding enviroment or from the patient for purification gas Gas).

It is necessary to explain to foregoing terms mentioned above herein: " belt " refers to the combination of a kind of structure or component, Help for mask body to be supported on user's facial；" head frame " refers to the combination of a kind of structure or component, and user can It is worn on head, such as crown (first position i.e. described above)；" mask body " refers at least can be with user's Nose and oral area fit, and can limit the gas compartment being isolated with ambient atmos space；" headband " refers to one kind Strip material (such as with uniform width), other objects are supported with enough intensity.

It is equipped with limit rib 5 between the mask body 1 and the cover board 3, is used to limit the position of the headband 2. Further, the limit rib 5 can be arranged around the port 11 of the mask body 1 circlewise, for preventing the headband 2 Stop the port 11 of the mask body 1, to guarantee the smooth of user's breathing.It should be noted that " the gas Mouthful " it can be gas outlet or air inlet, it, should " gas in the case where the intermediate position of the mask body 1 is arranged in gas outlet Mouthful " refer to gas outlet.The limit rib 5 and the guide post 4 for example can be set on the cover board 3.In the mask Main body 1 is equipped with groove body 12, and under the installation condition of the mask body 1 and the cover board 3, the guide post 4 is inserted into described In groove body 12, so that the seamless unoccupied place of the guide post 4 contacts the mask body 1 and the cover board 3.Similar to the guide post 4, the limit rib 5 preferably contacts the mask master with seamless unoccupied place under the installation condition of the cover board 3 in the mask body 1 Body 1 and the cover board 3.By set guide post 4 and limit rib 5, the cover board 3 and the mask body 1 can be It is easily and reliably guided along the headband 2 during removing.It, can be in the case where one guide post 4 of each setting of left and right The connecting rod of one connection, two guide posts 4 is set, to more easily guide to headband 2.

What the edge that the opening 31,32 being arranged on the cover board 3 is located at the cover board 3 for example including two was arranged symmetrically The under shed 32 that upper opening 31 and two edges for being located at the cover board 3 are arranged symmetrically.The a line of headband 2 passes through the cover board The upper opening 31 of 3 side enters inside the cover board 3, and the under shed 32 for then passing through the side draws from the inside of the cover board 3 Out；The upper opening 31 that the another a line of headband 2 passes through the other side enters inside the cover board 3, then passes through the under shed of the side 32 draw from the inside of the cover board 3.The guide post 4 is close for example between the upper opening 31 and the limit rib 5 The upper opening 31, to advantageously guide the relative motion of the headband 2 and the cover board 3.In the assembled state, institute Headband 2 is stated successively to be directed through from top to bottom: the upper opening 31, the top of the guide post 4, the guide post 4 with it is described Limit rib 5 between, under shed 32(it is as shown in Figure 1).

It is equipped with buckle structure 61 between the mask body 1 and the cover board 3,62,63,64, for by the mask Main body 1 is fixedly connected with the cover board 3.Certainly, it will be understood by those skilled in the art that the buckle structure can integrate upper On guide post 4 described in text and/or limit rib 5, without individually designing buckle structure.In two ends of the headband 2 Equipped with hasp structure (not shown), work in coordination so that the half face shield is fixed on the second position (such as the hindbrain of user Or neck) at.

The illustrative donning process of one of half face shield is: firstly, user passes through the fixed half face shield of head frame and the crown Relative position；Then, user holds the end of headband 2, while along headband 2 booting up mask body 1 and by mask Main body 1 sticks on snout；Then, user catches two ends of headband 2 to make headband 2 from left and right respectively around neck, so After the end of headband 2 is fixed on neck by hasp structure afterwards, so as to complete the fixation of half face shield and user's body；Most Afterwards, when needing temporarily to put down mask body 1, user unclamps the hasp structure of two ends of headband 2, then holds headband 2 end, while guiding mask body 1 downwards along headband 2 and removing mask body 1 from nose and mouth.

The technical scope of the utility model is not limited solely to the content in above description, and those skilled in the art can be Under the premise of not departing from the utility model technical idea, to above-described embodiment carry out many variations and modifications, and these deformation and Modification should all be fallen within the protection scope of the present invention.

Claims

1. a kind of half face shield, which is characterized in that the half face shield includes:

Mask body (1)；

Belt comprising head frame and the headband (2) connecting with the head frame, the head frame are used to for the half face shield to be fixed on the At one position；

The cover board (3) being arranged on the mask body (1) is equipped with opening (31,32), for guiding the headband wherein (2)；And

The guide post (4) being arranged between the mask body (1) and the cover board (3), in the mask body (1) and institute It states and contacts the mask body (1) and the cover board (3) under the installation condition of cover board (3) and for guiding the headband (2) Movement relative to the cover board (3).

2. half face shield according to claim 1, which is characterized in that between the mask body (1) and the cover board (3) Equipped with buckle structure (61,62,63,64), for the mask body (1) to be fixedly connected with the cover board (3).

3. half face shield according to claim 1, which is characterized in that between the mask body (1) and the cover board (3) Equipped with limit rib (5), it is used to limit the position of the headband (2).

4. half face shield according to claim 3, which is characterized in that limit rib (5) is around the mask body (1) Port (11) arrangement, for preventing the headband (2) from stopping the port (11) of the mask body (1).

5. half face shield according to claim 3, which is characterized in that the limit rib (5) and the guide post (4) setting exist On the cover board (3).

6. half face shield according to claim 5, which is characterized in that groove body (12) are equipped on the mask body (1), Under the installation condition of the mask body (1) and the cover board (3), the guide post (4) is inserted into the groove body (12).

7. half face shield according to claim 5, which is characterized in that the opening includes two and is located at the cover board (3) The under shed (32) that the upper opening (31) and two edges for being located at the cover board (3) that edge is arranged symmetrically are arranged symmetrically, it is described Guide post (4) is located at the upper opening (31).

8. half face shield according to claim 7, which is characterized in that be equipped with hasp knot in two ends of the headband (2) Structure is worked in coordination so that the half face shield is fixed on the second place.

9. half face shield according to claim 7, which is characterized in that in the assembled state, the headband (2) is successively drawn Lead by: between the upper opening (31), the top of the guide post (4), the guide post (4) and the limit rib (5), under It is open (32).

10. half face shield according to claim 1, which is characterized in that the half face shield includes being arranged in the mask body (1) the filter box of two sides is used for purification gas.