Protective hood facilitating air smoothness

Abstract

A protective hood facilitating air smoothness relates to the technical field of protective appliances and comprises a flexible hood body, a supporting cavity shell is fixedly connected to the inner top of the flexible hood body, vent holes communicated with an inner cavity of the flexible hood body are evenly distributed in the bottom face of the supporting cavity shell, and an arc-shaped transparent panel is fixedly connected to the bottom face, close to the front end, of the supporting cavity shell. The front end of the supporting cavity shell is fixedly connected with an air inlet distribution shell, the lower end of the air inlet distribution shell is provided with an arc-shaped distribution face facing the arc-shaped transparent panel, distribution holes communicated with the air inlet distribution shell are evenly distributed in the arc-shaped distribution face, an air outlet pipe is further arranged in the supporting cavity shell, and an air outlet assembly used for evenly discharging air is arranged on the air outlet pipe. The protective hood solves the problem that when a protective hood in the prior art is particularly used in a low-temperature environment, the inner wall of the mask plate is prone to water vapor condensation due to halitosis, and the operation sight is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of protective equipment, in particular to a protective head cover which facilitates the smooth flow of air. Background Art

[0002] As we all know, new infectious bacteria have been emerging in recent years, and their transmission routes can even be through droplets and aerosols between people, so the requirements for protection are getting higher and higher. At present, the protection of medical staff mainly relies on masks and goggles, sometimes with protective screens and protective clothing, and very few use fully enclosed chemical protective clothing. Although chemical protective clothing can provide comprehensive protection, it is very expensive, complicated, time-consuming to put on and take off, and extremely uncomfortable. It is suitable for protecting against physical and chemical damage such as phosgene and nuclear radiation dust (using filtered air to inject into the interior of the chemical protective clothing to maintain internal positive pressure, protect the skin of the whole body from contact with harmful substances, and will not inhale harmful substances through the respiratory tract), but for respiratory diseases that are mainly transmitted by air, it is a bit overprotective and even wasteful. Masks and goggles, even with protective screens and protective clothing, cannot completely prevent the inhalation of extremely fine pathogens (such as viruses) from the gaps in masks and goggles, and it is difficult to block transmission routes such as aerosols.

[0003] The prior art discloses a patent with a publication number of CN212383103U. The solution includes a hood body, an air duct and an air pressurization purification device. The upper end of the air duct is arranged in the hood body, and the lower end is connected to the air pressurization purification device. The hood body includes a cover shell, a neck limiting sealing belt, a transparent hem, a visual window, a forehead fixing support and a side transparent air storage bag. The side transparent air storage bag is formed by a flexible film and is located on the side or rear of the cover shell. When the air pressure in the air storage chamber drops to a certain value, it is compressed inward by the external atmospheric pressure. When in use, the elastic film rebound force at this location maintains the positive pressure in the hood and indicates the air pressure in the hood through the change in the size of the air storage chamber. The air pressurization purification device includes a battery pack, a filter, an exhaust unit and an electric control board, and supplies air to the hood through the air duct. The hood is mechanically pressurized to inject filtered clean air to prevent viruses from entering the respiratory tract to infect the user. The change in the size of the transparent air storage bag reliably indicates whether the air pressure in the hood is appropriate, thereby improving safety.

[0004] As the existing devices are used, the shortcomings of the technology are gradually exposed, mainly in the following aspects:

[0005] First, when the existing protective head cover is used in a low-temperature environment, the inner wall of the mask plate is prone to condensation due to breath, which affects the operator's vision.

[0006] Second, when the existing protective hood is in use, it is limited by the influence of the air inlet and outlet structure and cannot be in uniform contact with the human head, which affects the fluidity of the air inside the hood.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the defects in the prior art, the utility model solves the problem that the protective hood in the traditional technology is prone to condensation of water vapor on the inner wall of the mask plate due to breath, affecting the operating line of sight, and the existing protective hood is limited by the influence of the air inlet and outlet structure when in use, and cannot contact the human head evenly, affecting the smoothness of air inside the hood.

[0009] In order to solve the above problems, the utility model provides the following technical solutions:

[0010] A protective hood for smooth air flow comprises a flexible hood body, the inner top of the flexible hood body is fixedly connected to a support cavity shell, the bottom surface of the support cavity shell is uniformly distributed with ventilation holes connected to the inner cavity of the flexible hood body, the bottom surface of the support cavity shell near the front end is fixedly connected to an arc-shaped transparent panel, the front end of the support cavity shell is fixedly connected to an air intake distribution shell, the lower end of the air intake distribution shell is provided with an arc-shaped distribution surface facing the arc-shaped transparent panel, and the arc-shaped distribution surface is uniformly distributed with distribution holes connected to the air intake distribution shell.

[0011] An air outlet pipe is also arranged in the supporting cavity shell, and an air outlet component for evenly discharging air is arranged on the air outlet pipe.

[0012] As an optimized solution, the air outlet pipe is an elliptical annular pipe, the elliptical annular pipe is fixed to the inner wall of the support cavity shell, and the air outlet assembly is fixed to the inner ring of the elliptical annular pipe.

[0013] As an optimized solution, the air outlet assembly includes a plurality of branch pipes arranged in parallel, the two ends of the branch pipes are respectively fixedly connected to the relative inner circles of the elliptical ring pipe and connected to the inner cavity of the elliptical ring pipe, and the lower surface of each branch pipe is provided with a plurality of air suction holes connected to its inner cavity.

[0014] As an optimized solution, an air outlet connecting tube is fixedly connected to the rear end of the flexible head cover body, and the inner end of the air outlet connecting tube is communicated with the inner cavity of the elliptical ring tube.

[0015] As an optimized solution, an air intake pipe is fixedly connected to the inner top of the support cavity shell, a connecting tube connected to the inner cavity of the air intake distribution shell is fixedly connected to the upper end thereof, and the outlet end of the air intake pipe is connected to the connecting tube.

[0016] As an optimized solution, the elliptical ring tube is fixed to the inner side wall of the support cavity shell by a plurality of side clamps arranged in parallel.

[0017] As an optimized solution, the air inlet pipe is fixed to the inner top surface of the support cavity shell by top clamps arranged in parallel.

[0018] As an optimized solution, the rear end of the flexible head cover body is fixedly connected to a filter box, an air intake connecting tube connected to its inner cavity is fixedly connected to the outer wall of the filter box, and the inlet end of the air intake pipe extends into the filter box.

[0019] As an optimized solution, a filter assembly is detachably connected to the filter box.

[0020] As an optimized solution, the filter assembly includes a rectangular frame, a filter screen is fixedly connected to the inner wall of the rectangular frame, and an insertion hole is opened on the top of the filter box, and the rectangular frame is inserted into the filter box through the insertion hole.

[0021] As an optimized solution, a handle is fixedly connected to the upper end of the rectangular frame.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] By providing a flexible hood body, the inner top of the flexible hood body is fixedly connected with a support cavity shell, so that the top of the flexible hood body is shaped, and the lower end of the air intake distribution shell is provided with an arc-shaped distribution surface facing the arc-shaped transparent panel, and the arc-shaped distribution surface is evenly distributed with distribution holes connected to the air intake distribution shell, so that the intake air is evenly distributed and the intake air is blown toward the arc-shaped transparent panel. Not only can the intake air be blown toward the face to ensure smooth breathing, but also the problem of water vapor condensation on the inner wall of the arc-shaped transparent panel in a low temperature environment can be effectively overcome, so that the line of sight is not obstructed;

[0024] Branch pipes are arranged in parallel on the inner circle of the elliptical ring tube, and the air suction holes are evenly distributed, so that the air in the flexible hood body can be sucked out, ensuring the uniform and smooth air outlet;

[0025] A filter box and a detachable filter assembly are provided to filter the incoming air to ensure the cleanliness of the incoming air. The air intake and air intake devices are connected correspondingly through the air outlet connecting tube and the air inlet connecting tube to realize air circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] In the figure: 1-flexible hood body; 2-support cavity shell; 3-inlet distribution shell; 4-arc-shaped distribution surface; 5-arc-shaped transparent panel; 6-inlet pipe; 7-top clamp; 8-elliptical ring pipe; 9-side clamp; 10-branch pipe; 11-air outlet connecting tube; 12-filter box; 13-inlet connecting tube; 14-filter assembly. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0030] like Figure 1 As shown, a protective hood for smooth air flow comprises a flexible hood body 1, a support cavity shell 2 is fixedly connected to the inner top of the flexible hood body 1, and the bottom surface of the support cavity shell 2 is uniformly distributed with vents connected to the inner cavity of the flexible hood body 1, a curved transparent panel 5 is fixedly connected to the bottom surface of the support cavity shell 2 near the front end, an air intake distribution shell 3 is fixedly connected to the front end of the support cavity shell 2, and a curved distribution surface 4 facing the curved transparent panel 5 is provided at the lower end of the air intake distribution shell 3, and distribution holes connected to the air intake distribution shell 3 are uniformly distributed on the curved distribution surface 4.

[0031] An air outlet pipe is also provided in the support cavity shell 2, and an air outlet component for evenly discharging air is provided on the air outlet pipe.

[0032] The air outlet pipe is an elliptical annular pipe 8 , which is fixed to the inner wall of the supporting chamber shell 2 , and the air outlet assembly is fixed to the inner circle of the elliptical annular pipe 8 .

[0033] The air outlet assembly includes a plurality of branch pipes 10 arranged in parallel, the two ends of the branch pipes 10 are respectively fixedly connected to the relative inner circles of the elliptical ring pipe 8 and connected to the inner cavity of the elliptical ring pipe 8, and the lower surface of each branch pipe 10 is provided with a plurality of air suction holes connected to its inner cavity.

[0034] An air outlet connecting tube 11 is fixedly connected to the rear end of the flexible head cover body 1 , and the inner end of the air outlet connecting tube 11 is communicated with the inner cavity of the elliptical ring tube 8 .

[0035] An air inlet pipe 6 is fixedly connected to the inner top of the support chamber shell 2, a connecting tube connected to the inner cavity of the air inlet distribution shell 3 is fixedly connected to the upper end thereof, and the outlet end of the air inlet pipe 6 is connected to the connecting tube.

[0036] The elliptical ring tube 8 is fixed to the inner side wall of the supporting chamber shell 2 by a plurality of side clamps 9 arranged in parallel.

[0037] The air inlet pipe 6 is fixed to the inner top surface of the support chamber shell 2 through top clamps 7 arranged in parallel.

[0038] A filter box 12 is fixedly connected to the rear end of the flexible head cover body 1 , an air intake connecting tube 13 connected to the inner cavity of the filter box 12 is fixedly connected to the outer wall of the filter box 12 , and the inlet end of the air intake pipe 6 extends into the filter box 12 .

[0039] A filter assembly 14 is detachably connected to the filter box 12 .

[0040] The filter assembly 14 includes a rectangular frame, and a filter screen is fixedly connected to the inner wall of the rectangular frame. An insertion hole is opened on the top of the filter box 12, and the rectangular frame is inserted into the filter box 12 through the insertion hole.

[0041] A handle is fixedly connected to the upper end of the rectangular frame.

[0042] An elastic band is provided on the outer wall of the port of the flexible head cover body 1 close to the neck, so as to maintain a relatively sealed state between the port and the neck.

[0043] The top clamp and the side clamp are arranged in a C shape, so that the pipe body can be clamped by using the opening.

[0044] The working principle of this device is:

[0045] By providing a flexible hood body 1, the inner top of the flexible hood body 1 is fixedly connected with a support cavity shell 2, so that the top of the flexible hood body 1 is shaped, and the lower end of the air intake distribution shell 3 is provided with an arc-shaped distribution surface 4 facing the arc-shaped transparent panel 5, and the arc-shaped distribution surface 4 is evenly distributed with distribution holes connected to the air intake distribution shell 3, so that the intake air is evenly distributed and the intake air is blown toward the arc-shaped transparent panel 5, which can not only blow the intake air toward the face to ensure smooth breathing, but also effectively overcome the problem of water vapor condensation on the inner wall of the arc-shaped transparent panel 5 in a low temperature environment, ensuring that the line of sight is not obstructed;

[0046] The branch pipes 10 are arranged in parallel on the inner circle of the elliptical ring pipe 8, and the air suction holes are evenly distributed, so that the air in the flexible head cover body 1 can be sucked out, ensuring the uniformity and smoothness of the air outlet;

[0047] A filter box 12 and a detachable filter assembly 14 are provided to filter the incoming air and ensure the cleanliness of the incoming air. The air intake and air intake devices are connected correspondingly through the air outlet connecting tube 11 and the air inlet connecting tube 13 to realize air circulation.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A protective hood that facilitates air flow, characterized by: The flexible hood body (1) comprises a supporting cavity shell (2) fixedly connected to the inner top of the flexible hood body (1), the bottom surface of the supporting cavity shell (2) being evenly distributed with ventilation holes connected to the inner cavity of the flexible hood body (1), the bottom surface of the supporting cavity shell (2) being evenly distributed with a curved transparent panel (5) near the front end, the front end of the supporting cavity shell (2) being evenly connected with an air intake distribution shell (3), the lower end of the air intake distribution shell (3) being provided with a curved distribution surface (4) facing the curved transparent panel (5), the curved distribution surface (4) being evenly distributed with distribution holes connected to the air intake distribution shell (3), An air outlet pipe is also provided in the support cavity shell (2), and an air outlet component for evenly discharging air is provided on the air outlet pipe.

2. The protective head cover for facilitating air flow according to claim 1, characterized in that: The air outlet pipe is an elliptical annular pipe (8), the elliptical annular pipe (8) is fixed on the inner wall of the support cavity shell (2), and the air outlet component is fixed on the inner ring of the elliptical annular pipe (8).

3. The protective head cover for facilitating air flow according to claim 2, characterized in that: The air outlet assembly comprises a plurality of branch pipes (10) arranged in parallel, the two ends of the branch pipes (10) being respectively fixedly connected to the relative inner circles of the elliptical ring pipe (8) and connected to the inner cavity of the elliptical ring pipe (8), and the lower surface of each branch pipe (10) is provided with a plurality of air suction holes connected to its inner cavity.

4. The protective head cover for facilitating air flow according to claim 3, characterized in that: An air outlet connecting tube (11) is fixedly connected to the rear end of the flexible head cover body (1), and the inner end of the air outlet connecting tube (11) is in communication with the inner cavity of the elliptical ring tube (8).

5. The protective head cover for facilitating air flow according to claim 4, characterized in that: An air intake pipe (6) is fixedly connected to the inner top of the support cavity shell (2), a connecting tube communicating with the inner cavity of the air intake distribution shell (3) is fixedly connected to the upper end thereof, and an outlet end of the air intake pipe (6) is connected to the connecting tube.

6. The protective head cover for facilitating air flow according to claim 5, characterized in that: The elliptical annular tube (8) is fixed to the inner side wall of the supporting cavity shell (2) via a plurality of side clamps (9) arranged in parallel.

7. The protective head cover for facilitating air flow according to claim 6, characterized in that: The air inlet pipe (6) is fixed to the inner top surface of the support chamber shell (2) via top clamps (7) arranged in parallel.

8. The protective head cover for facilitating air flow according to claim 7, characterized in that: The rear end of the flexible head cover body (1) is fixedly connected to a filter box (12), the outer wall of the filter box (12) is fixedly connected to an air intake connection tube (13) connected to its inner cavity, and the inlet end of the air intake pipe (6) extends into the filter box (12).

9. The protective head cover for facilitating air flow according to claim 8, characterized in that: A filter assembly (14) is detachably connected inside the filter box (12).

10. The protective head cover for facilitating air flow according to claim 9, characterized in that: The filter assembly (14) comprises a rectangular frame, a filter screen is fixedly connected to the inner wall of the rectangular frame, and an insertion hole is provided on the top of the filter box (12), and the rectangular frame is inserted into the filter box (12) through the insertion hole.

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