CN211835891U - Comfortable micro-positive pressure protective hood - Google Patents
Comfortable micro-positive pressure protective hood Download PDFInfo
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- CN211835891U CN211835891U CN202020376537.9U CN202020376537U CN211835891U CN 211835891 U CN211835891 U CN 211835891U CN 202020376537 U CN202020376537 U CN 202020376537U CN 211835891 U CN211835891 U CN 211835891U
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- hood body
- lower cover
- hood
- direction changing
- fixed rod
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Abstract
The utility model discloses a comfortable micro-positive pressure protective hood, which comprises a hood body, wherein the front part of the hood body is provided with a window, the lower part of the hood body is provided with a tightening and fixing device, an air supply device is arranged outside the hood body, an air direction changing device is arranged in the hood body, a breathing tube is arranged between the air direction changing device and the air supply device, and the air direction changing device is communicated with the air supply device through the breathing tube; the wind direction changing device comprises a lower cover, the lower cover adopts a structure formed by connecting a plurality of rib positions in a net shape, and first vent holes are respectively formed between different rib positions; the periphery of one side, close to the interior of the hood body, of the lower cover is externally connected with an annular clamping table, a filtering membrane is fixed on the annular clamping table, a plurality of clamping columns are arranged on the annular clamping table at intervals, and a second vent hole is formed between every two adjacent clamping columns; the lower cover is provided with an upper cover close to one side inside the hood body, and the upper cover is buckled on the lower cover. The utility model discloses can solve the problem that the current hood use in the air current directly blows the person's face of wearing.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a comfortable type pressure-fired protection hood.
Background
Medical personnel need to wear protective tools for protection in a high-risk environment, most of the existing modes are mask wearing or goggles protection, the protection mode is relatively limited, the head, ears and other parts cannot be protected, the wearing is complicated, and the problems of pressure sores, indentations and the like easily occur on the face of the medical personnel; the traditional protective clothes are complicated to put on and take off, the time consumption is long, the whole body is positioned in the protective clothes, the protective clothes are stuffy and hot, and the movement is inconvenient.
Therefore, the protective hood is suitable for transportation, the air supply device is arranged outside the protective hood and generally comprises a motor, a fan, a primary filtering device, a lithium battery, a circuit board and the like, the air supply device sends air into the protective hood, the air directly enters the protective hood, the part of the medical care personnel opposite to the air inlet of the protective hood is always in a blown state, and the comfort degree is poor.
Disclosure of Invention
An object of the utility model is to provide a comfortable type pressure-fired protection hood for solve the current hood in-process air current direct-blow person's facial problem of wearing.
In order to solve the problem, the utility model adopts the following technical scheme:
a comfortable micro-positive pressure protective hood comprises a hood body, wherein a window is arranged at the front part of the hood body, a tightening and fixing device is arranged at the lower part of the hood body, an air supply device is arranged outside the hood body, a wind direction changing device is arranged in the hood body, a breathing tube is arranged between the wind direction changing device and the air supply device, and the wind direction changing device is communicated with the air supply device through the breathing tube;
the wind direction changing device comprises a lower cover, the lower cover adopts a structure formed by connecting a plurality of rib positions in a net shape, and first vent holes are respectively formed between different rib positions;
the periphery of one side, close to the interior of the hood body, of the lower cover is externally connected with an annular clamping table, a filtering membrane is fixed on the annular clamping table, a plurality of clamping columns are arranged on the annular clamping table at intervals, a second vent hole is formed between every two adjacent clamping columns, and the top ends of the clamping columns are in a hook shape;
the lower cover is close to the inside one side of hood body and still installs the upper cover, and the inner wall border of upper cover is provided with a plurality of be used for with lower cover complex buckling parts, buckling parts and the card post cooperation lock joint of covering down, is equipped with arc card arris on the buckling parts, and arc card arris card is in the hook-like end of card post, is connected with a plurality of spacing bosss on the inner wall of upper cover.
The hood body is also provided with an exhaust filtering device.
Optionally, one side that the lower cover deviates from the upper cover is equipped with protruding post, is equipped with the third through hole in the protruding post, and protruding post can dismantle fixed connection with the respiratory tube.
Optionally, a check valve is installed in the third through hole.
Optionally, the check valve comprises a fixed frame and a piece of circular silica gel, the fixed frame comprises a first fixed rod, a second fixed rod and a third fixed rod, one end of the first fixed rod and one end of the second fixed rod are respectively fixed on the protruding column, fixing holes are respectively formed in the other end of the first fixed rod and the other end of the second fixed rod, and the third fixed rod sequentially penetrates through the circular silica gel, the first fixed rod and the second fixed rod and then is fixedly connected with the second fixed rod; the diameter of the circular silica gel is larger than the inner diameter of the third through hole, and the edge of the circular silica gel is tightly attached to the inner side wall of the third through hole.
Optionally, a positioning ring is arranged on the periphery of one end, close to the upper cover, of the third fixing rod.
Optionally, the outer side wall of the hook-shaped end of the clamping column is provided with an upper guide inclined plane, the lower side of the arc-shaped clamping edge is provided with a lower guide inclined plane, and the upper guide inclined plane is matched with the lower guide inclined plane.
Optionally, both sides of the buckling part are respectively and fixedly connected with a limit stop used for limiting the circumferential direction of the clamping column.
Optionally, the wind direction changing device is arranged on the same side with the window and the wind direction changing device is arranged below the window; the lower cover is fixed on the head cover body.
Optionally, the exhaust filtering device comprises an exhaust hole arranged on the hood body, and a filtering membrane is arranged at the exhaust hole; the tightening and fixing device is an elastic band.
Adopt above-mentioned technical scheme, the utility model has the advantages of it is following:
the head protection hood can protect the head of a medical worker in an all-around manner, a mask and goggles do not need to be worn, pressure sores and indentations on the face of the medical worker are avoided, the comfort of the medical worker is improved, a primary filtering device in the air supply device performs primary filtering on air, the filtered air enters the wind direction changing device to be changed in direction, air flow sent into the interior of the hood is prevented from blowing the face of the medical worker directly, the comfort of the protection hood is improved, the air in the wind direction changing device can flow in a one-way mode through the check valve, and when the air supply device is damaged or is not powered on, the check valve is closed, so that air mixed with impurities, bacteria, viruses and the like is prevented from.
Drawings
FIG. 1 is a schematic side view of the present invention (in which A is a cut-away portion);
fig. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic perspective view of the wind direction changing device of the present invention;
FIG. 4 is a schematic structural view of the upper cover of the present invention;
fig. 5 is a schematic structural view of the check valve in the closed state;
FIG. 6 is a schematic structural view of the check valve in an open state;
fig. 7 is a partially enlarged schematic view at B in fig. 5.
Detailed Description
In order to make the technical purpose, technical solutions and advantageous effects of the present invention clearer, the technical solutions of the present invention are further described below with reference to fig. 1 to 7 and specific embodiments.
The utility model provides a comfortable pressure-fired protection hood includes hood body 1, the front portion of hood body 1 is equipped with window 7, window 7 adopts transparent pe sheet, window 7 and 1 fixed connection of hood body, the big window 7 of preferential adoption, can show medical personnel's whole faces, be convenient for medical personnel observe, the lower part of hood body 1 is equipped with tightens up fixing device 4, hood body 1 is equipped with air supply arrangement 3 outward, be equipped with primary filter equipment in air supply arrangement 3, air supply arrangement 3 includes the motor, the fan, lithium cell and circuit board, the lithium cell is the circuit board power supply, circuit board control motor work, the motor drives fan work, the fan filters air suction and through primary filter equipment, this is no longer repeated here for present technology, air supply arrangement 3 can adopt the electronic air supply system who all has the sale in each big shop.
Be equipped with wind direction change device 5 in the hood body 1, be equipped with respiratory tube 2 between wind direction change device 5 and air supply arrangement 3, wind direction change device 5 passes through respiratory tube 2 intercommunication with air supply arrangement 3.
The wind direction changing device 5 comprises a lower cover 51, the lower cover 51 is of a structure formed by connecting a plurality of rib positions in a net shape, and first air vents are formed between different rib positions respectively. The structure is convenient for air intake and can ensure the strength of the whole structure.
The periphery of one side of the lower cover 51 close to the interior of the head cover body 1 is outwards connected with an annular clamping table 52, a filtering membrane 53 is fixed on the annular clamping table 52, the filtering membrane 53 can be fixed on the annular clamping table 52 in an adhesion or ultrasonic welding mode, a plurality of clamping columns 54 are arranged on the annular clamping table 52 at intervals, second vent holes are formed between every two adjacent clamping columns 54, and the top ends of the clamping columns 54 are in a hook shape;
the lower cover 51 is provided with an upper cover 55 on one side close to the interior of the hood body 1, a plurality of buckling parts used for being matched with the lower cover 51 are arranged on the periphery of the inner wall of the upper cover 55, the buckling parts are matched and buckled with the clamping columns 54 on the lower cover 51, arc-shaped clamping ribs 57 are arranged on the buckling parts, the arc-shaped clamping ribs 57 are clamped at the hook-shaped ends of the clamping columns 54, and a plurality of limiting bosses 58 used for limiting the relative distance between the upper cover 55 and the lower cover 51 are connected to the inner wall of the upper cover 55. The breathing tube 2 is preferably of a threaded tube construction (construction with an inner wall that is smooth with an outer wall thread).
The outer side wall of the hook-shaped end of the clamping column 54 is provided with an upper guide inclined plane, the lower side of the arc-shaped clamping edge 57 is provided with a lower guide inclined plane, and the upper guide inclined plane is matched with the lower guide inclined plane. When the upper cover 55 is fastened to the lower cover 51, the lower guiding inclined plane of the upper cover 55 is firstly guided by the upper guiding inclined plane of the lower cover 51 in a contact manner, and then the hook-shaped end of the clamping column 54 is fastened with the arc-shaped clamping rib 57, and the upper guiding inclined plane and the lower guiding inclined plane are structured to enable the upper cover 55 to be mounted more conveniently and reliably.
The distance from the top surface of the hook-shaped end of the clamping column 54 to the annular clamping table 52 is larger than the distance from the top surface of the filtering membrane 53 to the annular clamping table 52, the upper cover 55 is of an inward concave structure, and a gas flowing space is formed between the upper cover 55 and the filtering membrane 53, so that gas flowing is facilitated.
The two sides of the buckling part are respectively and fixedly connected with a limit stop 59 used for limiting the circumferential direction of the clamping column 54, so that the clamping column 54 is prevented from moving along the circumferential direction, and the connection reliability of the upper cover 55 is guaranteed.
The operation principle of the wind direction changing device 5 is as follows: form the second venthole between two adjacent card posts 54 on the lower cover 51, when sending wind to the inside of hood body 1, the air current passes through the first venthole of lower cover 51 earlier, pass filtration membrane 53 again, reach the space between filtration membrane 53 and the upper cover 55 after filtering, at last the second venthole discharges to the outside, realize gas exchange, because the second venthole is arranged in lower cover 51 border, the air current passes through the route of second venthole and filtration membrane 53's axial vertical, avoid the air current directly to get into in the hood body 1 along filtration membrane 53 axial, avoid medical personnel and the position relative of hood body 1 air intake to be in the state of being bloied all the time, improve the comfort level of protection hood.
One side that lower cover 51 deviates from upper cover 55 is equipped with protruding post 8, is equipped with the third through hole in the protruding post 8, and protruding post 8 can dismantle fixed connection with respiratory tube 2. Protruding post 8 can select to use connected mode such as lock connection, threaded connection with respiratory tube 2, and when adopting threaded connection, protruding post 8 is equipped with the external screw thread outward, and respiratory tube 2 is close to the one end of protruding post 8 and is equipped with the internal thread, and respiratory tube 2 is connected conveniently with 8 threaded connection of protruding post.
A one-way valve is arranged in the third through hole and comprises a fixing frame and a piece of circular silica gel 81, the fixing frame comprises a first fixing rod 82, a second fixing rod 83 and a third fixing rod 84, one end of the first fixing rod 82 and one end of the second fixing rod 83 are respectively fixed on the protruding column 8, fixing holes are respectively formed in the other end of the first fixing rod 82 and the other end of the second fixing rod 83, and the third fixing rod 84 sequentially penetrates through the circular silica gel 81, the first fixing rod 82 and the second fixing rod 83 and then is fixedly connected with the second fixing rod 83 and can be fixed through nuts; the diameter of the circular silica gel 81 is larger than the inner diameter of the third through hole, and the edge of the circular silica gel 81 is tightly attached to the inner side wall of the third through hole. Because silica gel has elasticity, after circular silica gel 81 assembles into the third through-hole, circular silica gel 81 can hug closely the lateral wall of third through-hole, keeps apart hood body 1 with the external world. After air supply arrangement 3 air supply, under the external pressure effect, circular silica gel 81's edge is blown to hood body 1 one side to no longer paste the lateral wall of tight third through-hole, realize air supply arrangement 3 and the inside intercommunication of hood body 1. The arrows in the figure point in the air flow direction.
A positioning ring is arranged on the periphery of one end of the third fixing rod 84 close to the upper cover 55 to prevent the circular silica gel 81 from separating from the third fixing rod 84.
The wind direction changing device 5 and the window 7 are arranged on the same side, the wind direction changing device 5 is arranged below the window 7, part of air flowing out of the wind direction changing device 5 blows to the window 7, the window 7 is prevented from generating fog, the hood body 1 is further provided with the exhaust filtering device 6, and the exhaust filtering device 6 is arranged at the rear part of the hood body 1. The lower cover 51 is vertically fixed to the hood body 1.
The exhaust filtering device 6 comprises an exhaust hole arranged on the head cover body 1, and a filtering membrane is arranged at the exhaust hole; the tightening and fixing device 4 is an elastic band, which is convenient for tightening the lower part of the head cover body 1.
The filtering membrane in the utility model adopts a composite filtering membrane structure, the structural form of the composite filtering membrane is diversified, and the composite filtering membrane can adopt a first non-woven fabric layer, a first melt-blown fabric layer, a second melt-blown fabric layer, an electrostatic cotton layer and a second non-woven fabric layer which are laminated in sequence from outside to inside; the composite filter membrane 53 may also be formed by laminating a first non-woven fabric layer, a first electrostatic cotton layer, a melt-blown fabric layer, a second electrostatic cotton layer, and a second non-woven fabric layer from outside to inside in sequence.
The utility model discloses can carry out the omnidirectional protection to medical personnel's head, need not wear gauze mask and goggles, avoid pressing sore, indentation in medical personnel's facial appearance, increase medical personnel's comfort. When the medical mask is worn, the mask body 1 covers the head of a medical worker, then the elastic band is tightened, and the air supply device is generally provided with a fixing band and fixed on the body of the medical worker. When using, open air supply arrangement 3, air supply arrangement 3 carries out primary filter to the outside air earlier, then enters into wind direction change device 5 from respiratory tube 2, because atmospheric pressure effect, the check valve is opened, and the air after the filtration gets into wind direction change device 5 and changes the direction, avoids medical personnel and the position relative with the protection hood air intake to be in the state of being bloied all the time, improves the comfort level of protection hood. When the human body exhausts, the gas enters the external environment through the exhaust filter device 6 of the cover body, so that the cross infection phenomenon is avoided.
The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification of the above embodiments.
Claims (9)
1. The utility model provides a comfortable pressure-fired protection hood, includes the hood body, and the front portion of hood body is equipped with the window, and the lower part of hood body is equipped with tightens up fixing device, this external air supply arrangement that is equipped with of hood, its characterized in that: a wind direction changing device is arranged in the hood body, a breathing tube is arranged between the wind direction changing device and the air supply device, and the wind direction changing device is communicated with the air supply device through the breathing tube;
the wind direction changing device comprises a lower cover, the lower cover adopts a structure formed by connecting a plurality of rib positions in a net shape, and first vent holes are respectively formed between different rib positions;
the periphery of one side, close to the interior of the hood body, of the lower cover is externally connected with an annular clamping table, a filtering membrane is fixed on the annular clamping table, a plurality of clamping columns are arranged on the annular clamping table at intervals, a second vent hole is formed between every two adjacent clamping columns, and the top ends of the clamping columns are in a hook shape;
the lower cover is provided with an upper cover on one side close to the interior of the hood body, a plurality of buckling parts matched with the lower cover are arranged on the periphery of the inner wall of the upper cover, the buckling parts are matched and buckled with clamping columns on the lower cover, arc-shaped clamping edges are arranged on the buckling parts and clamped at the hook-shaped ends of the clamping columns, and a plurality of limiting bosses are connected on the inner wall of the upper cover; the hood body is also provided with an exhaust filtering device.
2. A comfortable micro positive pressure protective headgear according to claim 1, wherein: one side that the lower cover deviates from the upper cover is equipped with protruding post, is equipped with the third through hole in the protruding post, and protruding post can dismantle fixed connection with the respiratory tube.
3. A comfortable micro positive pressure protective headgear according to claim 2, wherein: a check valve is arranged in the third through hole.
4. A comfortable micro positive pressure protective headgear according to claim 3, wherein: the check valve comprises a fixed frame and a piece of circular silica gel, the fixed frame comprises a first fixed rod, a second fixed rod and a third fixed rod, one end of the first fixed rod and one end of the second fixed rod are respectively fixed on the protruding columns, fixing holes are respectively formed in the other end of the first fixed rod and the other end of the second fixed rod, and the third fixed rod sequentially penetrates through the circular silica gel, the first fixed rod and the second fixed rod and then is fixedly connected with the second fixed rod; the diameter of the circular silica gel is larger than the inner diameter of the third through hole, and the edge of the circular silica gel is tightly attached to the inner side wall of the third through hole.
5. A comfortable micro positive pressure protective headgear according to claim 4, wherein: a positioning ring is arranged on the periphery of one end of the third fixing rod close to the upper cover.
6. A comfortable micro-positive pressure protective hood according to any of claims 1 to 5, wherein: the outer side wall of the hook-shaped end of the clamping column is provided with an upper guide inclined plane, the lower side of the arc-shaped clamping edge is provided with a lower guide inclined plane, and the upper guide inclined plane is matched with the lower guide inclined plane.
7. A comfortable micro positive pressure protective headgear according to claim 6, wherein: and two sides of the buckling part are respectively and fixedly connected with limit stop blocks for limiting the circumferential direction of the clamping columns.
8. A comfortable micro positive pressure protective headgear according to claim 1, wherein: the wind direction changing device and the window are arranged on the same side, and the wind direction changing device is arranged below the window; the lower cover is fixed on the head cover body.
9. A comfortable micro positive pressure protective headgear according to claim 1, wherein: the exhaust filtering device comprises an exhaust hole arranged on the head cover body, and a filtering membrane is arranged at the exhaust hole; the tightening and fixing device is an elastic band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020376537.9U CN211835891U (en) | 2020-03-23 | 2020-03-23 | Comfortable micro-positive pressure protective hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020376537.9U CN211835891U (en) | 2020-03-23 | 2020-03-23 | Comfortable micro-positive pressure protective hood |
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| Publication Number | Publication Date |
|---|---|
| CN211835891U true CN211835891U (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020376537.9U Active CN211835891U (en) | 2020-03-23 | 2020-03-23 | Comfortable micro-positive pressure protective hood |
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| Country | Link |
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| CN (1) | CN211835891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717293A (en) * | 2021-01-08 | 2021-04-30 | 常州迅安科技股份有限公司 | Lower air duct air supply mechanism, head-mounted protective tool and electric protective equipment |
| US11701529B2 (en) | 2021-01-08 | 2023-07-18 | Changzhou Shine Science & Technology Co., Ltd. | Air supply mechanism with lower air duct, headgear and electric protective equipment |
-
2020
- 2020-03-23 CN CN202020376537.9U patent/CN211835891U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717293A (en) * | 2021-01-08 | 2021-04-30 | 常州迅安科技股份有限公司 | Lower air duct air supply mechanism, head-mounted protective tool and electric protective equipment |
| CN112717293B (en) * | 2021-01-08 | 2021-08-10 | 常州迅安科技股份有限公司 | Lower air duct air supply mechanism, head-mounted protective tool and electric protective equipment |
| WO2022147856A1 (en) * | 2021-01-08 | 2022-07-14 | 常州迅安科技股份有限公司 | Lower-air-duct air supply mechanism, head-mounted protector and electric protection device |
| US11701529B2 (en) | 2021-01-08 | 2023-07-18 | Changzhou Shine Science & Technology Co., Ltd. | Air supply mechanism with lower air duct, headgear and electric protective equipment |
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