CN211960991U - A diverging device for changing wind direction - Google Patents
A diverging device for changing wind direction Download PDFInfo
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- CN211960991U CN211960991U CN202020167611.6U CN202020167611U CN211960991U CN 211960991 U CN211960991 U CN 211960991U CN 202020167611 U CN202020167611 U CN 202020167611U CN 211960991 U CN211960991 U CN 211960991U
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- ring structure
- lower cover
- upper cover
- valve core
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Abstract
The utility model provides a diverging device for changing wind direction, includes upper cover and lower cover, fixedly connected with spliced pole between upper cover and the lower cover, is equipped with the flow distribution plate that a plurality of interval set up between upper cover and the lower cover, and the middle part of upper cover is equipped with inside bellied arcuation structure, covers under and is equipped with the inlet port, and the inlet port corresponds with the arcuation structure. The utility model discloses when using, install it in protector, send into protector's air to air supply arrangement and change to, the space forms the air flow space between upper cover and the lower cover, interval between the adjacent flow distribution plate forms the air outlet, the air after the filtration passes through the arc structure to the air flow space dispersion, then flow from the air outlet, avoid the air directly to enter into protector in, the position relative with the protector air intake that leads to medical personnel is in the state of being bloied always, improve protector's comfort level.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to diverging device for changing wind direction.
Background
At present, medical workers mostly wear masks for protecting themselves or wear goggles for protection, and the mode of protection is relatively limited, such as the head, ears and other parts cannot be protected, and the problems of pressure sores, indentations and the like easily occur on the faces of the medical workers due to the fact that the medical workers are cumbersome to wear; the traditional protective clothes are complicated to put on and take off, the time consumption is long, and the whole body is positioned in the protective clothes, so that the protective clothes are hot and stuffy.
Therefore protective head cover, protective face mask etc. protector should be transported, be equipped with air supply arrangement outside protector, air supply arrangement generally includes the motor, the fan, primary filter equipment, lithium cell and circuit board etc, air supply arrangement sends the air into protector in, the air directly enters into protector in, the position relative with the protector air intake that leads to medical personnel is in the state of being bloied all the time, it is poor to lead to protector's comfort level, so need design a diverging device for changing the wind direction, shunt the air.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a diverging device for changing wind direction shunts the air, avoids the air directly to blow medical personnel's face.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a diverging device for changing wind direction, includes upper cover and lower cover, fixedly connected with spliced pole between upper cover and the lower cover, is equipped with the flow distribution plate that a plurality of interval set up between upper cover and the lower cover, and the middle part of upper cover is equipped with inside bellied arcuation structure, covers under and is equipped with the inlet port, and the inlet port corresponds with the arcuation structure.
The splitter plate is arranged along the circumferential direction of the edge of the end surface of the lower cover; one end of the flow distribution plate is fixed on the lower cover, and the other end of the flow distribution plate is contacted with the upper cover.
One end of the connecting column is fixed on the lower cover, the upper cover is provided with a mounting hole corresponding to the connecting column, and the other end of the connecting column is assembled in the mounting hole and fixed in the mounting hole.
One side of the lower cover close to the upper cover is provided with a stepped groove.
One side of lower cover that deviates from the upper cover is equipped with protruding post, and the inlet port setting can dismantle fixed connection with the respiratory tube in protruding post.
A one-way valve is arranged in the air inlet.
The check valve comprises a valve seat and a valve core, the valve core is arranged on the valve seat, and the valve seat is arranged in the air inlet; the valve seat comprises an outer ring structure, an inner ring structure is arranged in the outer ring structure, and a plurality of connecting ribs arranged at intervals are fixedly connected between the outer ring structure and the inner ring structure; the valve core comprises a valve core column, one end of the valve core column is provided with an elastic separation blade, the valve core column is arranged in the inner ring structure and matched with the inner ring structure, and the inner side surface of the separation blade is attached to the end surface of the outer ring structure.
The spool comprises a first spool part, a second spool part and a third spool part which are arranged in sequence, the outer diameter of the second spool part is larger than that of the first spool part and that of the third spool part, the second spool part is in interference fit with the inner ring structure,
the second valve core part is longer than the inner ring structure, the difference between the length of the second valve core part and the length of the inner ring structure is recorded as L, and the range of L is 0.3 mm-0.5 mm; the inner side surface of the baffle plate is contacted with the end surface of the inner ring structure;
a conical limiting block is arranged between the first valve core part and the second valve core part, and one end of the limiting block close to the blocking piece is larger than one end of the limiting block far away from the blocking piece; the periphery of the valve seat is provided with a plurality of raised rings which are arranged at intervals, the raised rings are in interference fit with the air inlet, a limiting ring is arranged in the air inlet, and the limiting ring is in contact with the raised rings close to the separation blades.
When the utility model is used, the air-blowing device is arranged in the protective device, the air sent into the protective device by the air supply device is changed direction, the space between the upper cover and the lower cover forms an air flowing space, the space between the adjacent splitter plates forms an air outlet, the filtered air is dispersed to the air flowing space through the arc-shaped structure and then flows out from the air outlet, the air is prevented from directly entering the protective device, the part of the medical personnel opposite to the air inlet of the protective device is always in a blown state, and the comfort level of the protective device is improved; the one-way valve can enable air in the wind direction changing device to flow in a one-way mode, when the air supply device works, the air after primary filtering enters the second through hole through the breathing pipe and then enters the space between the outer ring structure and the inner ring structure to push the blocking piece, and the blocking piece deforms outwards, so that the one-way valve is opened, and the air is changed in direction through the wind direction changing device; when the air supply device is damaged or is not powered on, the one-way valve is closed, so that air mixed with impurities, bacteria, viruses and the like is prevented from entering the head cover.
Drawings
FIG. 1 is a schematic view of a protective head cover;
FIG. 2 is a partial cross-sectional view of a protective headgear;
fig. 3 is a schematic structural diagram (one) of the present invention;
fig. 4 is a schematic structural diagram (ii) of the present invention;
3 FIG. 3 5 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 4 3; 3
FIG. 6 is a schematic structural view of the lower cover;
FIG. 7 is a schematic structural view of the upper cover;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;
FIG. 9 is a schematic view of the check valve in a closed position;
FIG. 10 is a schematic view of the check valve in an open position;
FIG. 11 is a schematic view of the valve cartridge;
fig. 12 is a schematic view of the structure of the valve seat.
Detailed Description
As shown in fig. 1 to 12, a flow divider for changing wind direction, the wind direction changing device 5 includes an upper cover 51 and a lower cover 58, a connection column 53 is fixedly connected between the upper cover 51 and the lower cover 58, a plurality of flow dividing plates 55 are arranged between the upper cover 51 and the lower cover 58 at intervals, an arc structure 52 protruding inwards is arranged in the middle of the upper cover 51, the inward protrusion refers to a protrusion protruding towards one side of the lower cover 58, the edge of the upper cover 51 is flat, the upper cover 51 is approximately in a hat shape as a whole, an air inlet hole is arranged on the lower cover, the air inlet hole is opposite to the arc structure, when air enters the wind direction changing device 5 from the air inlet hole, and is reflected to a space between the upper cover 51 and the lower cover 58 through the arc structure.
The flow distribution plate 55 is arranged along the circumferential direction of the edge of the end face of the lower cover 58, and the flow distribution plate 55 is a rectangular plate or an arc-shaped plate with an opening pointing to the center of the end face of the lower cover 58 or other shapes playing a role in spacing; one end of the flow distribution plate 55 is fixed on the lower cover 58, the other end of the flow distribution plate 55 is in contact with the upper cover 51, and the flow distribution plate 55 plays both a flow distribution function and a supporting function.
One end of the connecting column 53 is fixed on the lower cover 58, the upper cover 51 is provided with a mounting hole 510 corresponding to the connecting column 53, the mounting hole 510 is a through hole, and the other end of the connecting column 53 is assembled in the mounting hole 510 and fixed in the mounting hole 510, preferably, but not limited to, by hot melting.
A plurality of reinforcing ribs 54 are fixed at one end of the connecting column 53 fixed on the lower cover 58, and the bottom ends of the reinforcing ribs 54 are fixedly connected with the lower cover 58.
The side of the lower cover 58 facing away from the upper cover 51 is provided with a raised post 56, and an air inlet is arranged in the raised post 56.
One side of the lower cover 58 close to the upper cover 51 is provided with a stepped groove which is communicated with the air inlet hole.
A check valve 57 is installed in the air inlet hole, and the check valve 57 can make the air in the wind direction changing device 5 flow in one direction.
The check valve 57 comprises a valve seat and a valve core, the valve core is arranged on the valve seat, and the valve seat is arranged in the air inlet; the valve seat comprises an outer ring structure 574, an inner ring structure 578 is arranged in the outer ring structure 574, the length of the outer ring structure 574 is larger than that of the inner ring structure 578, and a plurality of connecting ribs 575 which are arranged at intervals are fixedly connected between the outer ring structure 574 and the inner ring structure 578; the valve core comprises a valve core column, one end of the valve core column is provided with an elastic baffle 571, the valve core column is arranged in the inner ring structure 578 and matched with the inner ring structure 578, the inner side surface of the baffle 571 is attached to the end surface of the outer ring structure 574, and the outer diameter of the baffle 571 is larger than the inner diameter of the outer ring structure 574 and smaller than the outer diameter of the outer ring structure 574.
The blocking sheet 571 is vertically arranged, and the shape of the blocking sheet 571 is circular, but may be other shapes.
The valve core column comprises a first valve core part 576, a second valve core part 572 and a third valve core part 570 which are sequentially arranged, the outer diameter of the second valve core part 572 is larger than that of the first valve core part 576 and that of the third valve core part 570, so that assembly is facilitated, the second valve core part 572 is in interference fit with an inner ring structure 578, the firmness of the valve core column in fit with a valve seat is improved, the second valve core part 572 is longer than the inner ring structure 578, the difference between the length of the second valve core part 572 and the length of the inner ring structure is marked as L, the range of L is 0.3 mm-0.5 mm, and observation is facilitated and the valve core column is ensured; one end of the outer ring structure 574 is aligned with one end of the inner ring structure 578, and the inner side surface of the baffle 571 is in contact with the end surface of the inner ring structure 578, so that the installation is convenient; a conical limiting block 577 is arranged between the first valve core part 576 and the second valve core part 572, the limiting block 577 plays a limiting role, the valve core column is prevented from jumping out, and one end, close to the separation blade 571, of the limiting block 577 is larger than one end, away from the separation blade 571, of the limiting block 577, so that the installation is convenient; the periphery of the valve seat is provided with a plurality of protruding rings 573 arranged at intervals, the number of the protruding rings 573 is preferably two, the protruding rings 573 are in interference fit with the air inlet hole, so that the check valve 57 is firmly fixed in the air inlet hole, a limiting ring 560 is arranged in the air inlet hole, and the limiting ring 560 is in contact with the protruding rings 573 close to the blocking sheet 571, so that the limiting effect is achieved.
The first valve core part 576, the stopper 577, the second valve core part 572, the third valve core part 570 and the stopper 571 are integrally formed, and are made of silica gel, so that the valve core column can be assembled in the valve seat conveniently, and other rubber materials can be adopted.
The length of the first valve core portion 576 is greater than the length of the inner ring structure 578, so that the first valve core portion 576 can be inserted into the inner ring structure first and then pulled outward, thereby achieving the interference fit between the second valve core portion 572 and the inner ring structure 578.
When the blower 3 is in operation, the primarily filtered air enters the air inlet through the breathing tube 2, and then enters the space between the outer ring structure 574 and the inner ring structure 578, so as to push the blocking sheet 571, and the blocking sheet 571 deforms outward, thereby opening the check valve 57, as shown in fig. 10, where the arrow in fig. 10 points to the air flow direction.
When in use, the wind direction changing device 5 is installed in the protection device, in this embodiment, the protection head cover is taken as an example, the wind direction changing device 5 is installed in the protection head cover, the protection head cover further comprises a head cover body 1, a window 7 is arranged at the front part of the head cover body 1, the window 7 is made of a transparent pe sheet material, the window 7 is fixedly connected with the head cover body 1, preferably, a large window is adopted, the whole face of a medical worker can be displayed, the medical worker can conveniently observe the whole face, a tightening fixing device 4 is arranged at the lower part of the head cover body 1, an air supply device 3 is arranged outside the head cover body 1, a primary filtering device is arranged in the air supply device 3, the air supply device 3 further comprises a motor, a fan, a lithium battery and a circuit board, the lithium battery supplies power to the circuit board, the circuit board controls the motor to, in addition, the air supply device 3 can adopt an electric air supply breathing system sold in each large mall, as shown in fig. 2, a wind direction changing device 5 is arranged in the hood body 1, a cutting track B in fig. 2 is a cutting line, so that the wind direction changing device 5 is convenient to observe, the wind direction changing device 5 is preferentially and fixedly connected in the hood body 1, the shaking in the use process is avoided, a breathing tube 2 is arranged between the wind direction changing device 5 and the air supply device 3, and the wind direction changing device 5 is communicated with the air supply device 3 through the breathing tube 2; the hood body 1 is also provided with an exhaust filtering device 6.
Fixed connection can be dismantled with breathing tube 2 to the protruding post 56 of lower cover 58, and common connection forms such as preferred lock connection, threaded connection can be equipped with the external screw thread outside protruding post 56, and the one end that is close to protruding post 56 of breathing tube 2 is equipped with the internal thread, and breathing tube 2 and protruding post 56 threaded connection are connected conveniently.
The wind direction changing device 5 and the window 7 are arranged on the same side of the hood body 1 and below the window 7, part of air flowing out of the wind direction changing device 5 blows to the window 7, fog is prevented from being generated in the window 7, and the exhaust filtering device 6 is arranged on the rear portion 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 hood body 1, a filtering membrane is arranged at the exhaust hole, and the filtering membrane adopts a composite filtering membrane structure; 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 structure 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 filtering membrane can also adopt 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 which are laminated in sequence from outside to inside.
The protective head cover can carry out the omnidirectional protection to medical personnel's head, need not wear gauze mask and goggles, avoids pressing sore, indentation in medical personnel's face appearance, increases medical personnel's comfort. When the head cover is worn, the head cover body 1 covers the head of a medical worker, then the belt is tightened, and the air supply device is generally provided with a fixing belt 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 enter into wind direction change device 5 from respiratory tube 2, because the atmospheric pressure effect, check valve 57 opens, the air after the filtration gets into wind direction change device 5 and changes the direction, the space forms the air flow space between upper cover 51 and the lower cover 58, the interval between the adjacent flow distribution plate 55 forms the air current export, the air after the filtration passes through arc structure 52 to the air flow space dispersion, then flow out from the air current export, get into in the hood, avoid the air directly to enter into in the protection hood, the position that leads to medical personnel's and protection hood air intake to be in the state of being bloied all the time, improve 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.
Claims (10)
1. A diverter device for changing the direction of wind, characterized by: the air inlet structure comprises an upper cover and a lower cover, wherein a connecting column is fixedly connected between the upper cover and the lower cover, a plurality of flow distribution plates are arranged between the upper cover and the lower cover at intervals, an arc-shaped structure protruding inwards is arranged in the middle of the upper cover, and an air inlet hole is arranged on the lower cover and corresponds to the arc-shaped structure.
2. The diverter device for changing the direction of wind of claim 1, wherein: the splitter plate is arranged along the circumferential direction of the edge of the end surface of the lower cover; one end of the flow distribution plate is fixed on the lower cover, and the other end of the flow distribution plate is contacted with the upper cover.
3. The diverter device for changing the direction of wind of claim 1, wherein: one end of the connecting column is fixed on the lower cover, the upper cover is provided with a mounting hole corresponding to the connecting column, and the other end of the connecting column is assembled in the mounting hole and fixed in the mounting hole.
4. The diverter device for changing the direction of wind of claim 1, wherein: one side of the lower cover close to the upper cover is provided with a stepped groove.
5. The diverter device for changing the direction of wind of claim 1, wherein: one side of lower cover that deviates from the upper cover is equipped with protruding post, and the inlet port setting can dismantle fixed connection with the respiratory tube in protruding post.
6. The diverter device for changing the direction of wind of claim 5, wherein: a one-way valve is arranged in the air inlet.
7. The diverter device for redirecting wind as recited in claim 6, wherein: the check valve comprises a valve seat and a valve core, the valve core is arranged on the valve seat, and the valve seat is arranged in the air inlet; the valve seat comprises an outer ring structure, an inner ring structure is arranged in the outer ring structure, and a plurality of connecting ribs arranged at intervals are fixedly connected between the outer ring structure and the inner ring structure; the valve core comprises a valve core column, one end of the valve core column is provided with an elastic separation blade, the valve core column is arranged in the inner ring structure and matched with the inner ring structure, and the inner side surface of the separation blade is attached to the end surface of the outer ring structure.
8. The diverter device for redirecting wind as recited in claim 7, wherein: the spool comprises a first spool part, a second spool part and a third spool part which are arranged in sequence, the outer diameter of the second spool part is larger than that of the first spool part and that of the third spool part, and the second spool part is in interference fit with the inner ring structure.
9. The diverter device for redirecting wind as recited in claim 8, wherein: the second valve core part is longer than the inner ring structure, the difference between the length of the second valve core part and the length of the inner ring structure is recorded as L, and the range of L is 0.3 mm-0.5 mm; the inner side surface of the baffle sheet is contacted with the end surface of the inner ring structure.
10. The diverter device for redirecting wind as recited in claim 9, wherein: a conical limiting block is arranged between the first valve core part and the second valve core part, and one end of the limiting block close to the blocking piece is larger than one end of the limiting block far away from the blocking piece; the periphery of the valve seat is provided with a plurality of raised rings which are arranged at intervals, the raised rings are in interference fit with the air inlet, a limiting ring is arranged in the air inlet, and the limiting ring is in contact with the raised rings close to the separation blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020167611.6U CN211960991U (en) | 2020-02-13 | 2020-02-13 | A diverging device for changing wind direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020167611.6U CN211960991U (en) | 2020-02-13 | 2020-02-13 | A diverging device for changing wind direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211960991U true CN211960991U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020167611.6U Active CN211960991U (en) | 2020-02-13 | 2020-02-13 | A diverging device for changing wind direction |
Country Status (1)
| Country | Link |
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| CN (1) | CN211960991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717294A (en) * | 2021-01-08 | 2021-04-30 | 常州迅安科技股份有限公司 | Upper air duct air supply mechanism, head protector and electric protection equipment |
-
2020
- 2020-02-13 CN CN202020167611.6U patent/CN211960991U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717294A (en) * | 2021-01-08 | 2021-04-30 | 常州迅安科技股份有限公司 | Upper air duct air supply mechanism, head protector and electric protection equipment |
| WO2022147855A1 (en) * | 2021-01-08 | 2022-07-14 | 常州迅安科技股份有限公司 | Upper air duct-based air supply mechanism, head-mounted protector, and electric protection device |
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