CN215653489U

CN215653489U - Double-tube air exchange medical hood

Info

Publication number: CN215653489U
Application number: CN202120279939.1U
Authority: CN
Inventors: 吴龙涛; 田芝亮
Original assignee: Yimao Environmental Technology Co ltd
Current assignee: Yimao Environmental Technology Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2022-01-28
Anticipated expiration: 2031-02-01

Abstract

The application discloses medical hood of double-barrelled traded wind, including the hood body, the hood body is connected with malleation protection power unit, adopts air-out pipeline and supply air duct to connect between hood body and the malleation protection power unit. Has the following advantages: adopt double-barrelled mode to realize the air inlet and the air-out of hood, adopt the filtration processing system of two fans induced air, be pressure-fired in the hood, can make medical personnel breathe smoothly well, no resistance feels, and can guarantee all the time that no fog produces in the face guard all the time.

Description

Double-tube air exchange medical hood

Technical Field

The utility model relates to the field of medical instruments, in particular to a double-tube ventilation medical hood.

Background

The medical masks are various, most of the products adopt single-tube air supply, and air exchange inside the masks is realized by using a breather valve air exhaust mode; or the air is supplied by a single pipe, so that the positive pressure in the mask is always ensured, and the air in the mask leaks out from the side.

Disclosure of Invention

In order to solve the technical problem, the double-tube air exchange medical hood is provided, air inlet and air outlet of the hood are achieved in a double-tube mode, a filtering treatment system with double fans is adopted to guide air, micro positive pressure is arranged in the hood, medical workers can breathe smoothly without resistance, and mist can be prevented from being generated in a face mask all the time.

The utility model adopts the following technical scheme:

a medical hood with double-tube ventilation comprises a hood body, wherein the hood body is connected with a positive pressure protection power mechanism, and an air outlet pipeline and an air supply pipeline are connected between the hood body and the positive pressure protection power mechanism.

Further, the hood body includes the cloth cover, and the inside top of cloth cover is equipped with hood support frame, and the lower extreme of hood support frame is equipped with transparent face guard, and transparent face guard is connected with the cloth cover.

Furthermore, the top end of the cloth cover is provided with an air outlet and an air inlet, the positive pressure protection power mechanism is provided with an air suction opening and an air supply opening, the two ends of the air outlet pipeline are respectively connected with the air outlet and the air suction opening, and the two ends of the air supply pipeline are respectively connected with the air inlet and the air supply opening.

Furthermore, two ends of the upper part of the transparent mask are respectively fixed with a plastic elastic support sheet, and the plastic elastic support sheets are connected with the hood support framework.

Furthermore, the head cap support framework comprises a support ring and a fastening belt, the support ring is circular, the fastening belt is semicircular, two ends of the fastening belt are fixed at the top end of the support ring, and fixing points of the fastening belt on the support ring are symmetrically arranged along the diameter of the support ring.

Furthermore, the length of fastening area is adjustable, is equipped with the hole that a plurality of can adjust and detains on the fastening area, and every hole interval of hole knot is 1 CM.

Furthermore, an inner air supply channel is arranged above the fastening belt, one end of the inner air supply channel is connected with an air outlet, and the other end of the inner air supply channel is close to the mouth of a user.

Furthermore, the inner air supply channel comprises a conical joint and a corrugated pipe, the conical joint is arranged at the top end of the corrugated pipe, and the length of the corrugated pipe can be freely stretched.

Further, malleation protection power unit includes air-out filter and air inlet filter, and air-out filter and air inlet filter independently set up, and both do not communicate, all are equipped with the filter core in air-out filter and the air inlet filter, and the air-out filter is connected with exhaust fan, and the air inlet filter is connected with air supply fan, and exhaust fan intercommunication has the suction opening, and air supply fan intercommunication has the supply-air outlet, and exhaust fan and air supply fan are connected with lithium battery power supply, and lithium battery power supply provides the power for exhaust fan and air supply fan.

Furthermore, the cloth cover is made of a non-woven fabric polypropylene composite PE soft material, the transparent mask is made of a PU transparent material, the shape of the transparent mask is a curved surface, the whole curvature of the transparent mask is 100 degrees, and the transparent mask can achieve the effect that the left and right angles of sight of a user reach 120 degrees.

The medical mask with double tubes for exchanging air adopts a double-tube air exchanging principle and comprises a cloth mask body, a PU transparent mask, an air supply outlet, an air outlet, a supporting framework inside the mask and an air supply pipeline inside the mask. The cloth cover body adopts the soft material of non-woven fabrics polypropylene composite PE to constitute, can be very convenient wear the head, has the fastening area in the cloth cover body, just so seals whole hood and people at people's neck, controls the air output size through the software algorithm with the control unit, detects whether the wind channel blocks up and functions such as electric capacity, guarantees comfort level and the security that the hood used.

Compared with the prior art, the method has the following technical effects: the air inlet and the air outlet of the hood are realized by adopting a double-pipe mode, the filtering treatment system for guiding air by adopting double fans is different from common three-stage protective products on the market, the ratio of the air inlet volume to the air outlet volume is 10:9, the air speed level can be automatically adjusted according to the breathing volume, the micro-positive pressure effect in the hood is achieved, the medical personnel can breathe smoothly without resistance, the structure of an air supply pipeline in the mask is adopted, the mask can be ensured not to generate mist all the time, the air outlet is realized while the air inlet reaches the sterile state, the filtering system ensures that the exhaled air is released to the space in the sterile state, and the risk of potential propagation of the wearing personnel is avoided.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is an overall external view of the mask of the present invention;

FIG. 2 is a diagram of a transparent mask construction of the present invention;

FIG. 3 is a view of the structure of the head covering support frame;

FIG. 4 is a view showing the structure of an air supply duct in the mask of the present invention;

FIG. 5 is an external view of the air outlet and air supply outlet of the present invention;

FIG. 6 is a schematic view of the direction of the wind in the positive pressure protection power mechanism of the present invention;

fig. 7 is a schematic structural view of the positive pressure protection power mechanism of the present invention.

Detailed Description

In an embodiment, as shown in fig. 1, a medical hood with double-tube ventilation comprises a hood body 21, the hood body is connected with a positive pressure protection power mechanism 22, and the hood body 21 and the positive pressure protection power mechanism 22 are connected through an air outlet pipeline 23 and an air supply pipeline 25.

The head cap body 21 comprises a cloth cap 1, the cloth cap 1 is made of a non-woven fabric polypropylene composite PE soft material, a head cap supporting framework 24 is arranged at the top end inside the cloth cap 1, a transparent face mask 2 is arranged at the lower end of the head cap supporting framework 24, and the transparent face mask 2 is connected with the cloth cap 1.

The top end of the cloth cover 1 is provided with an air outlet 6 and an air inlet 7, the positive pressure protection power mechanism 22 is provided with an air suction opening 26 and an air supply opening 27, two ends of the air outlet pipeline 23 are respectively connected with the air outlet 6 and the air suction opening 26, and two ends of the air supply pipeline 25 are respectively connected with the air inlet 7 and the air supply opening 27.

Transparent face guard 2 adopts PU transparent material to make, and its shape is the curved surface form, and the whole crookedness of transparent face guard 2 is 100 degrees, and transparent face guard 2 can realize that the angle about the user's sight reaches 120 degrees, and the user's sight is unobstructed.

The four edges of the curved surface of the transparent mask 2 are fixed with the cloth cover 1 by sewing, and the overlapped part of the transparent mask 2 and the cloth cover 1 is sealed by glue.

As shown in fig. 2, two ends of the upper portion of the transparent mask 2 are respectively fixed with a plastic elastic support sheet 10, the width of the plastic elastic support sheet 10 is 2cm, the plastic elastic support sheet 10 is connected with a mask support framework 24, when a person uses the mask, the transparent mask can be spaced from the face of the person by the plastic elastic support sheet 10, and the ventilation effect and comfort in the mask are guaranteed.

As shown in figure 3, the supporting framework of the hood comprises a supporting ring 4 and a fastening belt 5, wherein the supporting ring 4 is circular, the fastening belt 5 is semicircular, two ends of the fastening belt 5 are fixed at the top end of the supporting ring 4, and the fixing points of the fastening belt 5 on the supporting ring 4 are symmetrically arranged along the diameter of the supporting ring 4.

The support ring 4 is made of soft plastics, the width of the support ring 4 is 4CM, the diameter of the support ring 4 is 17.5CM, and flexible sponge cloth wraps the support ring 4, so that the head of a person can be protected, and the comfort is improved.

The fastening belt 5 is also made of soft plastic and has a width of 4CM, and the fastening belt 5 is connected with the support ring 4 through gluing.

The adjustable length of fastening band 5 is equipped with the hole that a plurality of can adjust and detains 8 on fastening band 5, and every hole interval of hole knot 8 is 1CM, and the people of using can be according to the big or small adjustment hole of oneself head circumference and detain, adapts to the head type of oneself, can not lead to the hood to cover at people's head like this, and makes people's breathing not smooth and uncomfortable.

An inner air supply channel 3 is arranged above the fastening belt 5, one end of the inner air supply channel 3 is connected with an air outlet 6, and the other end of the inner air supply channel 3 is close to the mouth of a user.

As shown in fig. 4, the inner air supply channel 3 comprises a conical joint 9 and a corrugated pipe 11, the conical joint 9 is arranged at the top end of the corrugated pipe 11, the air outlet is conveniently and quickly inserted into a whole, the inner air supply pipeline is responsible for sending out air in the mask, the air supply is soft, people can breathe comfortably, the humidity of the breathing of people in the hood can be large through air supply, the air at high temperature can be sent out as quickly as possible, the inner air supply pipeline in a diagram is adopted, the bottom of the corrugated pipe 11 can be bent into an L shape, the bottom end of the corrugated pipe 11 is close to the mouth of a user, the air exhaled by the people is directly discharged through the inner air supply pipeline in the L shape, fog can not be generated in the hood, the length of the corrugated pipe 11 can be freely stretched and contracted to adapt to the user, the short end of the inner air supply pipeline is provided with the conical joint, and the air outlet is quickly inserted into a whole.

As shown in fig. 5, the air outlet 6 and the air supply outlet 7 are hard plastic pipes with a diameter of 3CM, and are glued on the top of the head cover, both ends of the air outlet 6 are provided with threads, the length of one end of the air outlet 6 in the cloth cover is 2CM, the air outlet is used for an internal air supply channel 3, the length of one end of the air outlet 6 outside the cloth cover is also 2CM, the air outlet is used for connecting an air outlet pipeline 23, the flat opening with a length of 1CM is arranged at one end of the air supply outlet 7 in the cloth cover, and the threaded opening with a length of 2CM is arranged at one end of the air supply outlet 7 outside the cloth cover, and the air supply pipeline 25 is connected.

The air outlet 6 is internally provided with a one-way valve, when the external air pressure is smaller than the one-way valve, the valve is opened, the air is discharged, and when the external air pressure is larger than the air pressure in the hood, the valve is closed, so that the external air is prevented from flowing back into the hood through the valve without being filtered. And the positive pressure filtering system continuously supplies air to the closed hood through the air inlet pipe until positive pressure is formed in the hood again and exceeds a valve threshold value, and the valve is opened again.

As shown in fig. 7, the positive pressure protection power mechanism 22 includes an air outlet filter 31 and an air inlet filter 32, the air outlet filter 31 and the air inlet filter 32 are independently disposed, the air outlet filter 31 and the air inlet filter 32 are not communicated, filter elements are disposed in the air outlet filter 31 and the air inlet filter 32, the air outlet filter 31 is connected with an air exhaust fan 33, the air inlet filter 32 is connected with an air supply fan 34, the air exhaust fan 33 is communicated with an air exhaust opening 26, the air supply fan 34 is communicated with an air supply opening 27, the air exhaust fan 33 and the air supply fan 34 are connected with a lithium battery power source 35, and the lithium battery power source 35 provides power for the air exhaust fan 33 and the air supply fan 34.

As shown in fig. 6, after the power supply of the positive pressure protection power mechanism 22 is turned on, the air draft fan 33 and the air supply fan 34 are controlled, the inlet air firstly passes through the filter element of the air inlet filter 32, is purified by the filter element of the air inlet filter 32 and then reaches the air draft fan 33, and the air draft fan 33 conveys the air to the inside of the mask to provide fresh air for users; the air exhaled by the user is filtered by the filter element of the air outlet filter 31 and then sent out of the mask by the extractor fan 33.

Through the structural design, a mask user can adjust the positions of the supporting framework and the air supply pipeline according to the head shape of the user, the fastening belt in the cloth mask body is fixed with the neck of the user, then the two hoses for air inlet and air outlet of the filtering system are respectively connected with the air supply opening and the air outlet of the mask, the switch of the battery in the filtering system is turned on, and the filtering system can supply air and exhaust air into the mask, so that air circulation is realized.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides a medical hood of double-barrelled ventilation which characterized in that: the air-out hood comprises a hood body (21), wherein the hood body is connected with a positive pressure protection power mechanism (22), and the hood body (21) is connected with the positive pressure protection power mechanism (22) through an air-out pipeline (23) and an air-supply pipeline (25).

2. The double tube ventilated medical hood of claim 1, wherein: the novel multifunctional hood is characterized in that the hood body (21) comprises a cloth cover (1), a hood supporting framework (24) is arranged at the top end inside the cloth cover (1), a transparent mask (2) is arranged at the lower end of the hood supporting framework (24), and the transparent mask (2) is connected with the cloth cover (1).

3. The double tube ventilated medical hood of claim 2, wherein: the top of cloth cover (1) is equipped with air outlet (6) and air intake (7), is equipped with suction opening (26) and supply-air outlet (27) on malleation protection power unit (22), and air outlet (6) and suction opening (26) are connected respectively at the both ends of air-out pipeline (23), and air intake (7) and supply-air outlet (27) are connected respectively at the both ends of supply-air pipeline (25).

4. The double tube ventilated medical hood of claim 2, wherein: two ends of the upper part of the transparent face mask (2) are respectively fixed with a plastic elastic support sheet (10), and the plastic elastic support sheets (10) are connected with a head cover support framework (24).

5. The double tube ventilated medical hood of claim 1, wherein: the head cap support framework comprises a support ring (4) and a fastening belt (5), the support ring (4) is circular, the fastening belt (5) is semicircular, the two ends of the fastening belt (5) are fixed to the top end of the support ring (4), and the fixing points of the fastening belt (5) on the support ring (4) are symmetrically arranged along the diameter of the support ring (4).

6. The double tube ventilated medical hood of claim 5, wherein: the length of fastening area (5) is adjustable, is equipped with a plurality of hole that can adjust on fastening area (5) and detains (8), and every hole interval that the hole detained (8) is 1 CM.

7. The double tube ventilated medical hood of claim 5, wherein: an inner air supply channel (3) is arranged above the fastening belt (5), one end of the inner air supply channel (3) is connected with an air outlet (6), and the other end of the inner air supply channel (3) is close to the mouth of a user.

8. The double tube ventilated medical hood of claim 7, wherein: the inner air supply channel (3) comprises a conical joint (9) and a corrugated pipe (11), the conical joint (9) is arranged at the top end of the corrugated pipe (11), and the length of the corrugated pipe (11) can be freely stretched.

9. The double tube ventilated medical hood of claim 1, wherein: malleation protection power unit (22) are including air-out filter (31) and air inlet filter (32), air-out filter (31) and air inlet filter (32) independent setting, both do not communicate, all be equipped with the filter core in air-out filter (31) and air inlet filter (32), air-out filter (31) are connected with exhaust fan (33), air inlet filter (32) are connected with air supply fan (34), exhaust fan (33) intercommunication has suction opening (26), air supply fan (34) intercommunication has supply-air outlet (27), exhaust fan (33) and air supply fan (34) are connected with lithium battery power supply (35), lithium battery power supply (35) provide the power for exhaust fan (33) and air supply fan (34).

10. The double tube ventilated medical hood of claim 2, wherein: cloth cover (1) adopts the soft material of compound PE of non-woven fabrics polypropylene to make, and transparent face guard (2) adopt PU transparent material to make, and its shape is the curved surface form, and the whole crookedness of transparent face guard (2) is 100 degrees, and transparent face guard (2) can realize that the angle about the user's sight reaches 120 degrees.