Anti-stamping protective face screen based on polycarbonate high-molecular polymer

Abstract

The utility model relates to the technical field of protective face screens, and provides an anti-stamping protective face screen based on polycarbonate high-molecular polymers, which comprises a screen body, an air outlet piece used for one-way air exhaust is arranged in the middle of the screen body, air inlet pieces are arranged at two ends of the screen body, and each air inlet piece comprises an air cylinder. One end of the air cylinder is fixedly connected with the outer wall of the screen body and communicated with the interior of the screen body, the inner side of the air cylinder is fixedly connected with a filter screen, the inner side of the filter screen is rotationally connected with a wind power impeller driven by wind power, and the outer side of the filter screen is provided with a cleaning piece matched with rotation of the wind power impeller to clean the outer wall of the filter screen. The cleaning piece is used for cleaning impurities on the outer wall of the filter screen, so that the problem that the filter screen is blocked by the impurities is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of protective face screens, and in particular to an anti-punch protective face screen based on a polycarbonate high molecular polymer. Background Art

[0002] The face shield is a facial protection tool that can protect the user's face from splashing materials. The chemical face shield is generally made of polycarbonate material, which is resistant to 45m / s particle impact and can protect the eyes and face from damage caused by splashing molten metal chemicals. The chemical face shield uses aluminum side strips, which are easy to shape and durable. It is equipped with sweatbands and shock-absorbing foam to make it comfortable to wear. The impact-proof face shield can provide protection against moderate impacts caused by high-speed particles, but cannot provide effective protection against fine dust particles, liquid splashing (including molten metal), high-temperature solids, electrical risks, toxic gases, infrared and ultraviolet rays, etc.

[0003] After searching, the Chinese patent publication number CN215136168U discloses "an anti-impact protective face shield based on polycarbonate polymer, comprising a protective frame; the protective frame constitutes the main structure of the anti-impact protective face shield, a first strap is provided at the right end of the back of the protective frame, a second strap is provided at the left end of the back of the protective frame, docking straps are fixed at the four corners of the back of the protective frame, a strap ring is provided on the docking strap, and a fixing ring is connected to the strap ring";

[0004] The above patent filters the incoming air through the filter cover, but after the filter screen of the filter cover filters the impurities in the air, these impurities will adhere to the filter screen. As the impurities accumulate more and more, the filter screen will be blocked, thereby affecting the air intake function of the protective face shield. In view of this, the utility model proposes an anti-impact protective face shield based on polycarbonate high molecular polymer.

[0005] Utility Model

[0006] The utility model provides an anti-punch protection face screen based on polycarbonate high molecular polymer, which solves the problem that the filter screen is easily blocked in the prior art.

[0007] The technical solution of the utility model is as follows: an anti-impact protective face shield based on polycarbonate high molecular polymer, comprising a screen body, an air outlet for one-way exhaust is arranged in the middle of the screen body, air inlet members are arranged at both ends of the screen body, the air inlet member comprises an air cylinder, one end of the air cylinder is fixedly connected to the outer wall of the screen body and communicated with the interior of the screen body, a filter is fixedly connected to the inner side of the filter, a wind impeller driven by wind is rotatably connected to the inner side of the filter, and a cleaning member is arranged on the outer side of the filter for cleaning the outer wall of the filter by cooperating with the rotation of the wind impeller.

[0008] Preferably, the cleaning part includes a rotating plate, which is rotatably connected to the outside of the filter and is coaxially fixed with the wind impeller. One end of the rotating plate is slidably connected to a sliding rod that passes through the rotating plate. One end of the sliding rod is fixedly connected to a scraper, which abuts against the outer wall of the filter. The other end of the sliding rod is fixedly connected to a stopper.

[0009] Preferably, the cleaning member further comprises a spring, wherein the spring is sleeved on the slide rod, one end of the spring abuts against the rotating plate, and the other end of the spring abuts against the scraper.

[0010] Preferably, the gas outlet member comprises a gas outlet pipe, the gas outlet pipe is fixedly connected to the middle of the screen body and communicates with the interior of the screen body, and a one-way valve for unidirectionally discharging the gas inside the screen body is fixedly connected to the gas outlet pipe.

[0011] Preferably, an air hole matching the pipe opening of the air outlet pipe is opened on the inner side of the screen body, and the outlet end of the air outlet pipe is connected to the air hole.

[0012] Preferably, air inlets matching the air cylinder are provided on both sides of the screen body, and the air inlets are connected to the pipe opening of the air cylinder.

[0013] Preferably, the screen body comprises a polycarbonate layer, a silicone layer is fixedly connected to the inner side of the polycarbonate layer, and a water absorbing layer is fixedly connected to the inner side of the silicone layer.

[0014] Preferably, the thickness of the polycarbonate layer is smaller than the thickness of the silicone layer, and the thickness of the silicone layer is larger than the thickness of the water-absorbing layer.

[0015] The working principle and beneficial effects of the utility model are as follows: gas is introduced into the interior of the screen through an air cylinder, and then impurities in the air are filtered through a filter. When air is taken in, the wind impeller rotates under the action of gas pressure, which causes the cleaning part to rotate synchronously, thereby causing the cleaning part to clean the impurities on the outer wall of the filter, effectively avoiding the problem of the filter being clogged by impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the structure of a polycarbonate high molecular polymer anti-impact protective face shield of the utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a polycarbonate high molecular polymer anti-impact protective face shield of the utility model. Figure 2 ;

[0019] Figure 3 It is a structural schematic diagram of the air intake member of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the cleaning member of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the gas outlet member of the utility model;

[0022] Figure 6 It is a schematic structural diagram of the screen body of the utility model.

[0023] In the figure: 1, screen body; 11, polycarbonate layer; 12, silicone layer; 13, water absorption layer; 2, air outlet; 21, air outlet pipe; 22, one-way valve; 3, air inlet; 31, air cylinder; 32, filter; 33, wind impeller; 34, cleaning part; 341, rotating plate; 342, sliding rod; 343, scraper; 344, block; 345, spring. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 to Figure 6 As shown, this embodiment proposes an anti-impact protective face shield based on polycarbonate polymer, including a screen body 1, an air outlet 2 for one-way exhaust is arranged in the middle of the screen body 1, air inlet parts 3 are arranged at both ends of the screen body 1, the air inlet part 3 includes an air cylinder 31, one end of the air cylinder 31 is fixedly connected to the outer wall of the screen body 1 and communicated with the interior of the screen body 1, a filter screen 32 is fixedly connected to the inner side of the air cylinder 31, a wind impeller 33 driven by wind is rotatably connected to the inner side of the filter screen 32, and a cleaning part 34 is arranged on the outer side of the filter screen 32 for cleaning the outer wall of the filter screen 32 by cooperating with the rotation of the wind impeller 33.

[0026] The gas is introduced into the screen body 1 through the gas cylinder 31, and then the impurities in the air are filtered through the filter 32. When the air is taken in, the wind impeller 33 will rotate due to the gas pressure, which makes the cleaning part 34 rotate synchronously, so that the cleaning part 34 cleans the impurities on the outer wall of the filter 32, effectively avoiding the problem of the filter 32 being blocked by impurities.

[0027] Furthermore, the cleaning member 34 includes a rotating plate 341, which is rotatably connected to the outer side of the filter screen 32 and is coaxially fixed with the wind impeller 33. One end of the rotating plate 341 is slidably connected to a slide bar 342 that penetrates the rotating plate 341, one end of the slide bar 342 is fixedly connected to a scraper 343, the scraper 343 contacts the outer wall of the filter screen 32, the other end of the slide bar 342 is fixedly connected to a stopper 344, and a spring 345 is sleeved on the slide bar 342, one end of the spring 345 contacts the rotating plate 341, and the other end of the spring 345 contacts the scraper 343. When the wind impeller 33 rotates, the rotating plate 341 rotates synchronously, which causes the scraper 343 to slide relative to the outer wall of the filter screen 32, so that the scraper 343 cleans the impurities on the outer wall of the filter screen 32.

[0028] Furthermore, the air outlet component 2 includes an air outlet pipe 21, which is fixedly connected to the middle part of the screen body 1 and communicated with the interior of the screen body 1. A one-way valve 22 is fixedly connected to the air outlet pipe 21 for unidirectionally discharging the internal gas of the screen body 1. An air hole matching the pipe mouth of the air outlet pipe 21 is provided on the inner side of the screen body 1, and the outlet end of the air outlet pipe 21 is connected to the air hole. Air inlets matching the air cylinder 31 are provided on both sides of the screen body 1, and the air inlets are connected to the pipe mouth of the air cylinder 31.

[0029] Furthermore, the screen body 1 includes a polycarbonate layer 11, a silicone layer 12 is fixedly connected to the inner side of the polycarbonate layer 11, a water absorbing layer 13 is fixedly connected to the inner side of the silicone layer 12, the thickness of the polycarbonate layer 11 is less than the thickness of the silicone layer 12, and the thickness of the silicone layer 12 is greater than the thickness of the water absorbing layer 13. The silicone layer 12 can improve the comfort of the entire screen body 1, and the water absorbing layer 13 can absorb sweat.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polycarbonate high molecular polymer-based anti-impact protective face shield, comprising a screen body (1), wherein a gas outlet (2) for one-way exhaust is arranged in the middle of the screen body (1), characterized in that: Both ends of the screen body (1) are provided with air inlet members (3), the air inlet member (3) comprising an air cylinder (31), one end of the air cylinder (31) being fixedly connected to the outer wall of the screen body (1) and communicating with the interior of the screen body (1), a filter screen (32) being fixedly connected to the inner side of the air cylinder (31), a wind impeller (33) driven by wind being rotatably connected to the inner side of the filter screen (32), and a cleaning member (34) for cleaning the outer wall of the filter screen (32) by cooperating with the rotation of the wind impeller (33) being provided on the outer side of the filter screen (32).

2. The anti-impact protective face shield based on polycarbonate polymer according to claim 1, characterized in that: The cleaning member (34) comprises a rotating plate (341), the rotating plate (341) is rotatably connected to the outer side of the filter (32), and the rotating plate (341) is coaxially fixed with the wind impeller (33), one end of the rotating plate (341) is slidably connected to a sliding rod (342) penetrating the rotating plate (341), one end of the sliding rod (342) is fixedly connected to a scraper (343), the scraper (343) contacts the outer wall of the filter (32), and the other end of the sliding rod (342) is fixedly connected to a stopper (344).

3. The anti-impact protective face shield based on polycarbonate polymer according to claim 2, characterized in that: The cleaning member (34) further comprises a spring (345), wherein the spring (345) is sleeved on the slide bar (342), one end of the spring (345) abuts against the rotating plate (341), and the other end of the spring (345) abuts against the scraper (343).

4. The anti-impact protective face shield based on polycarbonate polymer according to claim 1, characterized in that: The gas outlet member (2) comprises a gas outlet pipe (21), the gas outlet pipe (21) is fixedly connected to the middle part of the screen body (1) and communicates with the interior of the screen body (1), and a one-way valve (22) is fixedly connected to the gas outlet pipe (21) for unidirectionally discharging the gas inside the screen body (1).

5. The anti-impact protective face shield based on polycarbonate polymer according to claim 4, characterized in that: An air hole matching the pipe opening of the air outlet pipe (21) is provided on the inner side of the screen body (1), and the outlet end of the air outlet pipe (21) is connected to the air hole.

6. The anti-impact protective face shield based on polycarbonate polymer according to claim 1, characterized in that: Air inlets matching the air cylinder (31) are provided on both sides of the screen body (1), and the air inlets are connected to the pipe opening of the air cylinder (31).

7. The anti-impact protective face shield based on polycarbonate polymer according to claim 1, characterized in that: The screen body (1) comprises a polycarbonate layer (11), a silicone layer (12) is fixedly connected to the inner side of the polycarbonate layer (11), and a water absorbing layer (13) is fixedly connected to the inner side of the silicone layer (12).

8. The anti-impact protective face shield based on polycarbonate polymer according to claim 7, characterized in that: The thickness of the polycarbonate layer (11) is smaller than the thickness of the silicone layer (12), and the thickness of the silicone layer (12) is larger than the thickness of the water-absorbing layer (13).

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