CN111467697B - Isolation suit respiratory support device - Google Patents
Isolation suit respiratory support device Download PDFInfo
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- CN111467697B CN111467697B CN202010358154.3A CN202010358154A CN111467697B CN 111467697 B CN111467697 B CN 111467697B CN 202010358154 A CN202010358154 A CN 202010358154A CN 111467697 B CN111467697 B CN 111467697B
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- filter element
- filter
- air
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- opening
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
Abstract
The invention relates to respiratory support equipment for an isolation suit, which comprises a main box body, wherein a fresh air circulation space is arranged in the main box body, the fresh air circulation space is sequentially divided into a filter unit installation area and a power fan installation area according to the air flow direction, a filter element is installed in the filter unit installation area, and one surface of the filter element is open so as to facilitate the installation of the filter element and the inflow of fresh air; the filter unit installing zone has one section filter core installation section of reducing gradually along uncovered inwards, and the lateral surface of filter core has the tapering that corresponds with the filter core installation section of reducing gradually and pastes with the filter core installation section, and uncovered the setting has the apron, has seted up a plurality of bleeder vents on the apron, and the medial surface of apron is equipped with the bellying and compresses tightly the filter core, and the bottom of filter unit installing zone has the gas mouth of crossing with the power fan installing zone intercommunication. According to the invention, the mounting area of the filter unit is set to be in a mode of gradually reducing from the opening inwards, the mounting section of the filter element is wedged tightly with the outer side surface of the filter element, and the protruding part of the cover plate can further compress the filter element, so that the sealing and filtering effect is effectively ensured.
Description
Technical Field
The invention belongs to the technical field of filter elements in a respiratory protection device, and particularly relates to respiratory support equipment of an isolation suit.
Background
The existing respiratory support device for isolation protective clothing, as related in chinese patent CN2770703Y, generally uses a filter element for filtering the outside air, and the filtered air is sent into the isolation clothing for the wearer to breathe, so as to ensure the breathing health and comfort of the wearer. However, the filtering effect of the filter element, including the filtering performance of the filter element itself and the matching performance of the filter element with the filter unit mounting area 521 of the respiratory support device, affects the filtering effect on the air fed into the isolation suit, and the filtering effect of the filtered air is the key for evaluating the respiratory support device.
The applicant is dedicated to research on respiratory support equipment of an isolation protective suit, and has research results of CN210205641U and CN210205638U, after the respiratory support equipment is actually manufactured, after the filtration effect of filtered air is used and detected, the appearance of a filter unit installation area of a fresh air circulation space in a main box body of the respiratory support equipment, the sealing matching performance of the installation area and a filter element and the importance of the filter element are further realized, which is not simple to stack a filter material in the filter unit installation area of the main box body, so that the ideal filtration effect cannot be achieved, the use and the replacement are not convenient, and the use effect of the respiratory support equipment is severely limited; therefore, the applicant improves and optimizes the filter unit (filter element), the fresh air circulation space on the main box body and the filter unit installation area in the respiratory support equipment related to the patents CN210205641U and CN210205638U, so that the filter unit has better matching adaptability, and can achieve the required sealing and filtering effect by combining with the filter element with the corresponding grade requirement. In addition, the respiratory support equipment must ensure a certain air supply amount to ensure the use comfort and safety, and correspondingly, a certain volume of air in unit time is required to pass through the filter element and be filtered, and the conventional filter element arrangement mode is difficult to simultaneously meet the requirements of filtering and ventilation; the ventilation efficiency of the fresh air circulation space in the main box body is also required to be ensured so as to ensure the use comfort and safety.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the respiratory support equipment of the isolation suit, avoid the problem that the sealing and filtering effects of the existing respiratory support equipment are limited, and achieve the effects of achieving better sealing and filtering performance and ensuring comfortable and safe use.
In order to solve the technical problems, the invention adopts the following technical scheme:
the respiratory support equipment for the isolation suit comprises a main box body, wherein a battery installation space and a fresh air circulation space are arranged in the main box body, the fresh air circulation space is sequentially divided into a filter unit installation area, a power fan installation area and an air outlet area according to the gas flow direction, a filter element is installed in the filter unit installation area, one surface of the filter unit installation area is open so as to facilitate the inflow of the filter element and fresh air, the air outlet area is provided with an air outlet, and a power fan is installed in the power fan installation area so as to provide driving force which can enable the fresh air to flow in from the open and be sent out from the air outlet; a battery is arranged in the battery mounting space and is electrically connected with the power fan; the filter unit installing zone has one section filter core installation section of reducing gradually along uncovered inwards, the lateral surface of filter core have with the tapering that the filter core installation section of reducing gradually corresponds pastes with filter core installation section, uncovered the apron that sets has seted up a plurality of bleeder vents on the apron so that new wind energy follows uncovered inflow, the medial surface of apron is equipped with the bellying and passes through the bellying compresses tightly the filter core, the bottom of filter unit installing zone have with the gas mouth of crossing of power fan installing zone intercommunication.
Further perfecting the technical scheme, the filter element comprises filter cloth, the filter cloth is arranged in a filter element base body with a gas passing channel, and the edge of the filter cloth is hermetically connected with the gas passing channel of the filter element base body so as to ensure that gas passing through the gas passing channel is filtered by the filter cloth; the filter element base body comprises a side wall surrounding a circle to be used as strength support so as to be convenient for putting in a filter unit installation area, the inner space of the side wall surrounding the filter element base body forms the air passing channel, the outer side surface of the side wall surrounding the filter element base body forms the outer side surface of the filter element, and two ends of the side wall surrounding the filter element base body are open and respectively form an air inlet and an air outlet; the air inlet faces the opening, and the air outlet is communicated with the air passing port; the bellying of apron is the round protruding edge that corresponds with the a week lateral wall of filter core base member, the corresponding outer terminal surface that compresses tightly in a week lateral wall of filter core base member is followed to the round protruding.
Furthermore, the filter cloth is arranged in the air passing channel in a corrugated shape to increase the filtering and ventilating area so as to ensure the ventilation capacity.
Furthermore, the filter cloth is arranged in the air passing channel in a plurality of continuous V-shaped folded shapes so as to increase the filtering and ventilating area to a greater extent.
Furthermore, the main box body is a rectangular box body with a horizontal long edge, the battery installation space is transversely arranged at the lower part of the rectangular box body along the long edge direction, the fresh air circulation space is transversely arranged at the upper part of the rectangular box body along the long edge direction, the air outlet is formed in the upper surface of the rectangular box body, the battery installation space is provided with a corresponding battery cover so as to load and unload the battery, the battery cover is arranged on any end surface of the rectangular box body, and the opening of the filter unit installation area is formed in the side surface of the rectangular box body; a partition plate is arranged between the filter unit mounting area and the power fan mounting area so as to form the filter element mounting section with the diameter gradually reduced, the filter unit mounting area is inwards formed into a quadrangular frustum-shaped cavity structure with an inwards small end along an opening, and the air passing opening is formed in the partition plate and is positioned on one side of the partition plate, which is far away from the opening; the inner end face of the side wall of the periphery of the filter element base body is abutted to the corresponding inner wall of the filter unit mounting area, a distance is reserved between the filter cloth and the inner end face of the side wall, the inner space of the side wall of the distance section is formed into a lateral channel, the inner end face of the side wall is provided with a vent hole, the vent hole is communicated with the lateral channel and formed into a lateral air outlet, and the lateral air outlet is communicated with the air passing hole.
Further, the extending direction of the V-shaped folds of the filter cloth is consistent with the length direction of the filter element base body so as to continuously arrange more V-shaped folds.
Furthermore, the cover plate is also provided with a lap edge at the outer side of the convex edge, the lap edge is overlapped with the outer edge of the opening, and a sealing ring is clamped between lap surfaces of the lap edge and the outer edge; the sealing ring is embedded in a ring of ring groove formed in the outer edge of the opening.
Furthermore, two raised elastic clamping legs are symmetrically arranged on two sides of the inner side surface of the lap joint edge, free ends of the two elastic clamping legs deviate from each other and extend, two clamping grooves corresponding to the two elastic clamping legs are formed in the inner wall of the filtering unit mounting area, and the two elastic clamping legs are correspondingly clamped in the two clamping grooves after elastic deformation so as to realize connection of the cover plate and the main box body.
Furthermore, a concave part is arranged on the side surface of the rectangular box body where the opening is located, and the concave part extends towards the opening and extends to intersect with the outer edge of the opening so as to pick up the cover plate from the concave part; the edge of the outer end face of the side wall of the circumference of the filter element base body is connected with two flexible pulling pieces, and the two flexible pulling pieces are symmetrically arranged so that the filter element can be conveniently taken out of the filter unit installation area when the filter element is replaced.
Furthermore, the two side surfaces of the rectangular box body are arc surfaces along the long edge direction of the rectangular box body so as to be more fit with the radian of the waist of a human body, the arc surface at the inner side and the arc surface at the outer side are arranged at equal intervals, the opening is formed in the arc surface at the outer side, and the outer edge of the opening is a plane; a first flow guide inclined plane is arranged on one surface of the partition board facing the power fan mounting area and used for guiding air entering the power fan mounting area from the air passing port to the power fan mounted in the power fan mounting area; and a second diversion inclined plane is arranged in the air outlet area and used for guiding air entering the air outlet area through the power fan mounting area to the air outlet.
Compared with the prior art, the invention has the following beneficial effects:
1. the respiratory support equipment for the isolation suit has the advantages that the filtering effect of the filter element is good, the mounting area of the filter unit is arranged to be gradually reduced from the opening to the inside, namely the mounting area of the filter element is provided with a section of filter element mounting section which is gradually reduced in diameter, after the corresponding filter element with the taper is mounted, the mounting area of the filter element can be embedded, the mounting section of the filter element can be wedged tightly with the outer side of the filter element to prevent air from leaking from a gap between the filter element and the mounting area of the filter unit, and therefore the sealed filtering effect is guaranteed.
2. According to the respiratory support equipment for the isolation suit, the filter element base body is arranged and connected with the filter cloth to form a single filter element, so that the isolation suit is convenient to organize, produce, replace and use; select the filter cloth according to protection filtration grade, the border of filter cloth with the inner wall sealing connection of the gas channel of filter core base member has guaranteed completely that the gas of passing the gas channel through the filter core base member all is filtered by the filter cloth, has guaranteed the use filter effect of filter core.
3. According to the breathing support equipment for the isolation suit, the cover plate is additionally arranged, the air holes in the cover plate ensure smooth air, and the convex parts on the inner side surface of the cover plate can press the filter element to the gradually reduced filter element mounting section, so that the effect of wedging and air permeation prevention is further ensured.
4. According to the respiratory support equipment for the isolation suit, the filter cloth is continuously folded in the filter element base body in the V shape, so that the filtering and ventilating area can be increased, the filtering effect and the ventilating efficiency are ensured, and the comfort and the safety of use are ensured.
5. According to the respiratory support equipment for the isolation suit, the first flow guide inclined plane and the second flow guide inclined plane are arranged, so that the ventilation efficiency is further improved, and the use comfort is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of an isolation suit respiratory support apparatus according to an embodiment;
FIG. 2 is a schematic view of the cover plate of FIG. 1 without the filter element;
FIG. 3 is a schematic illustration of a cover plate in an embodiment;
FIG. 4 is a schematic view of the main case body with a continuous cross-section based on FIG. 2;
FIG. 5 is a cross-sectional view A-A of FIG. 4 (including the cover);
FIG. 6 is an enlarged partial schematic view of FIG. 5;
FIG. 7 is a diagram illustrating the effectiveness of the use of an isolation suit respiratory support apparatus in accordance with an exemplary embodiment;
FIG. 8 is a diagram illustrating the effectiveness of another angle of use of the isolation suit respiratory support apparatus of an embodiment;
FIG. 9 is a schematic diagram of a shape-deformable structure of the respiratory support apparatus of the isolation suit of the exemplary embodiment;
FIG. 10 is a schematic view of a filter cartridge in an example embodiment;
FIG. 11 is a schematic view of a filter cartridge from another perspective in an exemplary embodiment;
FIG. 12 is a schematic view of a filter cartridge in an exemplary embodiment taken along its length;
FIG. 13 is a schematic view of a filter cartridge in an exemplary embodiment taken across the width thereof;
wherein, the main box body 5, the battery installation space 51, the fresh air circulation space 52, the filter unit installation area 521, the power fan installation area 522, the air outlet area 523, the power fan 53, the air outlet 54 and the battery cover 56,
a filter element mounting section 5211, an outer edge 5212, a ring groove 5213, a clamping groove 5214, a concave part 5215, a clapboard 57, an air passing hole 571, a first flow guide inclined plane 572, a second flow guide inclined plane 58, a lifting handle 59, a cover plate 1, an air hole 11, a convex part 12, a lap edge 13, an elastic clamping leg 14, a sealing ring 2, an arc-shaped surface 3,
the filter element comprises a filter element 6, a filter element base body 60, a side wall 61, a side panel 611, an end panel 612, an air passing channel 62, an air inlet 63, an air outlet 64, a lateral channel 65, an air vent 66, a filter cloth 7 and a flexible pull piece 8.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 6, the isolation suit respiratory support device of the embodiment may be improved based on any one of CN210205641U and CN210205638U, and the embodiment takes the respiratory support device in CN210205638U as a basis to describe a further improved structure. The respiratory support equipment for the isolation suit comprises a main box body 5, wherein a battery installation space 51 and a fresh air circulation space 52 are arranged in the main box body 5, the fresh air circulation space 52 is sequentially divided into a filter unit installation area 521, a power fan installation area 522 and an air outlet area 523 according to the air flow direction, a filter element 6 is installed in the filter unit installation area 521, one surface of the filter unit installation area 521 is open so as to facilitate the installation of the filter element 6 and the inflow of fresh air, the air outlet area 523 is provided with an air outlet 54, and a power fan 53 is installed in the power fan installation area 522 so as to provide driving force for enabling the fresh air to flow in from the open and to be sent out from the air outlet 54; a battery is arranged in the battery installation space 51 and is electrically connected with the power fan 53; the filter unit mounting area 521 has a section of filter element mounting section 5211 that reduces gradually along the uncovered inwards so as to realize the embedded installation of corresponding filter element, the uncovered cover plate 1 that has set, has seted up a plurality of bleeder vents 11 on the cover plate 1 so that fresh wind energy flows in from the uncovered, the medial surface of cover plate 1 is equipped with the bellying 12 towards in the filter unit mounting area 521 for compressing tightly filter element 6 to the filter element mounting section 5211 that reduces gradually, the bottom of filter unit mounting area 521 has the gas passing mouth 571 with the power fan mounting area 522 intercommunication.
Referring to fig. 7 and 8, other prior art structures related to the main box body 5 are not described again, in the respiratory support device of the isolation suit of the embodiment, the filter unit installation region 521 is set to be in a form of tapering inward from an opening, that is, a filter element installation section 5211 with a gradually reduced diameter is provided, after the corresponding filter element 6 is installed, an embedded installation effect can be achieved, and the filter element installation section 5211 can be wedged tightly with the outer side of the filter element 6 to prevent air from leaking from a gap (clearance) between the filter element 6 and the filter unit installation region 521, thereby ensuring a sealed filtration effect; the bottom of the filter unit installation area 521 is provided with an air passing opening 571 which is communicated with the power fan installation area 522, the air passing opening 571 can be arranged on the bottom surface of the filter unit installation area 521, and can also be arranged at the bottom end of the side wall of the filter unit installation area 521, and the air passing opening 571 can achieve the ventilation use effect; the air holes 11 in the cover plate 1 ensure smooth air flow, and the protruding parts 12 on the inner side surface of the cover plate 1 can press the filter element 6 on the filter element mounting section 5211 gradually reduced in diameter, so that the air permeability prevention effect is further guaranteed. During implementation, the filter element 6 can have a taper corresponding to the filter element mounting section 5211 with gradually reduced diameter, can also have no taper, can be wedged tightly, and is not limited specifically, so that the adaptability of the main box body 5 is improved, and better sealing filtering performance can be achieved by combining the corresponding filter element.
Referring to fig. 4-6, the main box 5 is a rectangular box with a horizontal long side, the battery installation space 51 is disposed at the lower part of the rectangular box along the long side direction, the fresh air circulation space 52 is disposed at the upper part of the rectangular box along the long side direction, the air outlet 54 is opened at the upper surface of the rectangular box, the battery installation space 51 is provided with a corresponding battery cover 56 for mounting and dismounting the battery, the battery cover 56 is disposed at any end surface of the rectangular box, and the opening of the filter unit installation area 521 is opened at the side surface of the rectangular box; a partition plate 57 is arranged between the filter unit mounting area 521 and the power fan mounting area 522 so as to form the filter element mounting section 5211 with the diameter gradually reduced, the filter unit mounting area 521 is inwardly formed along an opening to form a hollow cavity structure with a quadrangular frustum shape with an inward small end, and the air passing opening 571 is arranged on the partition plate 57 and is positioned on one side of the partition plate 57 away from the opening. The upper surface of the rectangular box body is additionally provided with a handle 59.
Thus, for the main case 5 with a rectangular case structure with good man-machine effect, the partition 57 is additionally arranged between the filter unit mounting area 521 and the power fan mounting area 522, and the filter unit mounting area 521 is in a quadrangular frustum shape along the opening, so that a 'diameter-gradually-reduced filter element mounting section 5211' convenient to manufacture is constructed, and the use effect and the manufacturing cost are both considered.
A first diversion inclined plane 572 is disposed on a side of the partition 57 facing the power fan installation area 522 for guiding air entering the power fan installation area 522 from the air passing opening 571 to the power fan 53 installed in the power fan installation area 522.
Therefore, the ventilation efficiency can be influenced due to the change of the position of the air passing hole 571, and the ventilation efficiency is improved through the arrangement of the first flow guide inclined plane 572, so that the comfort and the safety of use are ensured.
The convex part 12 of the cover plate 1 is a circle of closed-loop convex edge which is arranged close to the open edge so as to optimize the acting point when the filter element 6 is pressed.
Like this, protruding edge compresses tightly the position of filter core 6 and is located near the wedging position, and the arm of force is short, avoids pressing filter core 6 to warp, keeps the original form of filter core 6 to guarantee that the filter effect is not influenced.
The cover plate 1 is provided with a lap edge 13 outside the convex edge, the lap edge 13 is overlapped with the open outer edge 5212 (which may be the side of the rectangular box body where the opening is located), and a sealing ring 2 is clamped between the lap surfaces of the lap edge 13 and the open outer edge 5212.
Thus, the sealing and filtering effect is further guaranteed.
Referring to fig. 6, the sealing ring 2 is embedded in a ring groove 5213 formed in the open outer edge 5212.
Like this, improve life, apron 1 needs often to open, the lock because of the change of filter core 6, and sealing ring 2 establishes on main box body 5, and is more stable durable.
Two raised elastic clamping legs 14 are arranged on two sides of the inner side surface of the lap joint edge 13 in a centrosymmetric manner, free ends of the two elastic clamping legs 14 deviate from each other and extend, two clamping grooves 5214 corresponding to the two elastic clamping legs 14 are formed in the inner side wall of the filtering unit installation area 521, and the two elastic clamping legs 14 are correspondingly clamped in the two clamping grooves 5214 after elastic deformation so as to realize the buckling connection of the cover plate 1 and the main box body 5. The side face of the rectangular box body where the opening is located is provided with a concave part 5215, and the concave part 5215 extends towards the opening and extends to intersect with the outer edge 5212 of the opening so as to open the cover plate 1 from the concave part 5215.
Therefore, the use is simple and reliable, the cover plate 1 can be simply opened and buckled, and the sealing performance in use can be ensured.
The air-out area 523 is provided with a second diversion inclined plane 58 for guiding the air entering the air-out area 523 through the power fan installation area 522 to the air outlet 54.
Like this, through the setting of second water conservancy diversion inclined plane 58, further promote the ventilation efficiency, guarantee to use the travelling comfort.
Referring to fig. 9, in practice, the two side surfaces of the rectangular box body may be arc surfaces 3 along the long side direction thereof so as to be more fit with the radian of the waist of the human body, the inner arc surface 3 and the outer arc surface 3 are arranged at equal intervals, the opening is opened on the outer arc surface 3, and the outer edge 5212 of the opening is a plane.
Thus, the man-machine efficiency is improved by the arc-shaped surface 3, and the open outer edge 5212 is a plane, so that the manufacturing difficulty can be avoided from being increased, and the sealing effect can be better ensured.
The isolation suit respiratory support apparatus of the present invention also provides a specific filter element 6 which is conveniently replaceable.
Referring to fig. 10 and 11, the filter element 6 includes a filter cloth 7; the filter cloth 7 is arranged in a filter element base body 60 with an air passage 62, and the peripheral edge of the filter cloth 7 is hermetically connected with the inner wall of the air passage 62 of the filter element base body 60 so as to ensure that the air passing through the air passage 62 is filtered by the filter cloth 7; the filter element base 60 includes a side wall 61 surrounding a circumference for supporting strength so as to be inserted into the filter unit installation area 521, an inner space of the side wall 61 surrounding the circumference of the filter element base 60 is formed as the air passing passage 62, and the filter element base 60 has an air inlet 63 and an air outlet 64 at both ends of the air passing passage 62, respectively.
The filter element base body 60 is arranged and connected with the filter cloth 7 to form a single filter element, so that the tissue production and the replacement use are convenient; the filter cloth 7 is selected according to the protection filtering grade, the edge of the periphery of the filter cloth 7 is in sealing connection with the inner wall of the air passage 62 of the filter element base body 60, the air passing through the air passage 62 of the filter element base body 60 is completely ensured to be filtered by the filter cloth 7, and the using filtering effect of the filter element is ensured.
Wherein, two ends of a peripheral side wall 61 of the filter element base body 60 are open and respectively form the air inlet 63 and the air outlet 64.
Thus, the air inlet 63 and the air outlet 64 are formed by directly utilizing the two ends of the peripheral side wall 61 of the filter element base body 60 without opening holes and ventilating after arranging end plates, and the smoothness of the air passing channel 62 is fully ensured. When the filter unit is placed in the filter unit installation area 521, the air inlet 63 faces the opening, and the air outlet 64 faces the air passing opening; the convex part 12 of the cover plate 1 is a circle of convex edge corresponding to a circle of side wall 61 of the filter element base body 60, and compresses the air inlet end face of the circle of side wall 61 of the filter element base body 60.
Referring to fig. 12 and 13, the outer side surface of a peripheral side wall 61 of the filter element base 60 has a taper direction in which the taper direction gradually decreases from the air inlet end to the air outlet end, that is, the outer side surface of the peripheral side wall 61 of the filter element base 60 is in a form of a pyramid-like frustum.
Thus, in addition to the filtering performance of the filter element itself, the side wall 61 of the filter element base body 60 is provided with a taper corresponding to the side wall of the filter unit installation area 521, so that the effect of wedging and ventilation prevention is achieved (see fig. 8), the matching and ventilation prevention of the filter element and the filter unit installation area 521 can be ensured, and a better using effect is achieved.
Wherein, the edge of the air inlet end of the peripheral side wall 61 of the filter element base body 60 is connected with two flexible pull tabs 8, and the two flexible pull tabs 8 are symmetrically arranged so as to conveniently take out the filter element from the filter unit installation area 521 when replacing the filter element.
The filter cloth 7 is arranged in the air passage 62 in a corrugated shape, so that the filtering and ventilating area can be increased, and the filtering effect and the ventilating efficiency can be ensured at the same time. When the filter is implemented, the filter can achieve the effect of increasing the filtering and ventilating area by enabling the folds in any direction.
Referring to fig. 12, in the present embodiment, the filter cloth 7 is disposed in the air passage 62 in a plurality of continuous V-shaped folds to increase the filtering and ventilating area to a greater extent, and the continuous V-shaped folds also make the filter cloth 7 more regular in the filter element base 60, so that the filter cloth has a better form retention degree during use, and can ensure a filtering posture within a service life.
The distance from the filter cloth 7 to the edge of the air outlet end of the side wall 61 is a certain distance, the inner space of the side wall of the distance section is formed into a lateral channel 65, an air vent 66 is formed on the edge of the air outlet end of the side wall 61, the air vent 66 is communicated with the lateral channel 65, so that after the filter element is placed in the filter unit installation area 521 (the original air outlet end is attached to the bottom of the filter unit installation area 521 and is closed), a lateral air outlet can be formed through the air vent 66, and the lateral air outlet is communicated with the air vent 571.
Therefore, the human-computer efficacy can be better met; referring to fig. 8, in combination with the use of the respiratory support device, the filter element in the form of a lateral air outlet is installed in the filter unit installation area 521, and the cover plate 1 with a plurality of air holes is covered, so that the respiratory support device has a smaller thickness and is in a flat and long shape, can be bound to the waist of a human body under the condition that the actions of users are not limited basically, and has good actual use effect and strong actual significance; after the filter element is installed, the original air outlet end of the filter element is abutted to the bottom of the filter unit installation area 521, the in-place feeling is strong, the installation position of the filter element is fixed, and the air inlet end of the filter element can be better (stably and cannot move downwards due to pressure) attached to the cover plate 1 so as to ensure a good sealing effect.
Correspondingly, the extending direction of the V-shaped folds of the filter cloth 7 is consistent with the length direction of the filter element base body 60 so as to continuously arrange more V-shaped folds; the vent hole 66 is formed in the end surface of the filter element base 60 along the length direction, so that a lateral air outlet formed by the vent hole 66 is communicated with the air passing hole 571.
In this way, a larger filter aeration area may be provided; flexible pull tabs 8 are also provided at both ends of the cartridge base 60 in the lengthwise direction for pulling.
Wherein, the filter cloth 7 adopts non-woven fabrics, spun-bonded non-woven fabrics, melt-blown non-woven fabrics or abrasive cloth. The filtering protection grade according to the actual requirement is selected and used according to the requirement; in order to save materials, the flexible pull piece 8 can also be made of the same material as the filter cloth 7.
Wherein, the lateral wall 61 of filter core base member 60 adopts polyethylene foam cotton (EPE pearl cotton), and this material environmental protection, water proof are dampproofing, airtight, can guarantee that gaseous from filter cloth 7 passes through, and this material plasticity can be good, toughness is strong, can regard as the intensity to support, and itself also has certain flexibility, and the filter unit installing zone 521 through tapering and stereoplasm (be stereoplasm plastics usually) corresponds taper fit, can play fine ventilative effect of preventing, ensures well that gaseous homoenergetic only can pass through from filter cloth 7. Of course, the materials themselves are conventional and will not be described in detail.
Referring to fig. 12 and 13, in practice, in order to facilitate the transition of the four corners of the filter element base body 60 to be more regular (to be matched with the filter unit installation area 521), the peripheral side wall 61 comprises two side panels 611 with longer lengths and two end panels 612 with shorter lengths, the outer surfaces of each of the side panels 611 and the end panels 612 can be completely coated with sealing glue during manufacturing and assembly so as to further avoid air permeation, the filter cloth 7 is connected between the two side panels 611 in a continuous V-shaped folding and sealing manner, and then the two side panels 611 and the filter cloth 7 are connected between the two end panels 612 in a sealing and bonding manner.
In implementation, the side panels 611 and the end panels 612 may be in the form of an inclined plane on the outer side and a plane on the inner side in this embodiment, that is, the cross section is in the form of a right trapezoid, or in the form of a common flat plate, and the taper of the outer side is realized by a profile during the sealing, bonding and connecting process.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. The respiratory support equipment for the isolation suit comprises a main box body, wherein a battery installation space and a fresh air circulation space are arranged in the main box body, the fresh air circulation space is sequentially divided into a filter unit installation area, a power fan installation area and an air outlet area according to the gas flow direction, a filter element is installed in the filter unit installation area, one surface of the filter unit installation area is open so as to facilitate the inflow of the filter element and fresh air, the air outlet area is provided with an air outlet, and a power fan is installed in the power fan installation area so as to provide driving force which can enable the fresh air to flow in from the open and be sent out from the air outlet; a battery is arranged in the battery mounting space and is electrically connected with the power fan; the method is characterized in that: the filter unit mounting area is internally provided with a section of filter element mounting section gradually reducing in diameter along an opening, the outer side surface of the filter element is provided with a taper corresponding to the filter element mounting section gradually reducing in diameter and is attached to the filter element mounting section, the opening is provided with a cover plate in a matching mode, a plurality of air holes are formed in the cover plate so that fresh wind can flow in from the opening, the inner side surface of the cover plate is provided with a protruding part and presses the filter element tightly through the protruding part, and the bottom of the filter unit mounting area is provided with an air passing hole communicated with the power fan mounting area;
the filter element comprises filter cloth, the filter cloth is arranged in a filter element base body with an air passage, and the edge of the filter cloth is hermetically connected with the air passage of the filter element base body so as to ensure that the air passing through the air passage is filtered by the filter cloth; the filter element base body comprises a side wall surrounding a circle to be used as strength support so as to be convenient for putting in a filter unit installation area, the inner space of the side wall surrounding the filter element base body forms the air passing channel, the outer side surface of the side wall surrounding the filter element base body forms the outer side surface of the filter element, and two ends of the side wall surrounding the filter element base body are open and respectively form an air inlet and an air outlet; the air inlet faces the opening, and the air outlet is communicated with the air passing port;
the convex part of the cover plate is a circle of convex edge corresponding to the side wall of the periphery of the filter element base body, and the circle of convex edge is correspondingly pressed on the outer end surface of the side wall of the periphery of the filter element base body;
the main box body is a rectangular box body with a horizontal long edge, the battery installation space is transversely arranged at the lower part of the rectangular box body along the long edge direction, the fresh air circulation space is transversely arranged at the upper part of the rectangular box body along the long edge direction, the air outlet is formed in the upper surface of the rectangular box body, the battery installation space is provided with a corresponding battery cover for facilitating the assembly and disassembly of the battery, the battery cover is arranged on any end surface of the rectangular box body, and the opening of the filter unit installation area is formed in the side surface of the rectangular box body;
a partition plate is arranged between the filter unit mounting area and the power fan mounting area so as to form the filter element mounting section with the diameter gradually reduced, the filter unit mounting area is inwards formed into a quadrangular frustum-shaped cavity structure with an inwards small end along an opening, and the air passing opening is formed in the partition plate and is positioned on one side of the partition plate, which is far away from the opening;
the inner end face of the side wall of the periphery of the filter element base body is abutted to the corresponding inner wall of the filter unit mounting area, a distance is reserved between the filter cloth and the inner end face of the side wall, the inner space of the side wall of the distance section is formed into a lateral channel, the inner end face of the side wall is provided with a vent hole, the vent hole is communicated with the lateral channel and formed into a lateral air outlet, and the lateral air outlet is communicated with the air passing hole.
2. The isolation suit respiratory support apparatus of claim 1, wherein: the filter cloth is arranged in the air passing channel in a corrugated shape to increase the filtering and ventilating area so as to ensure the ventilation capacity.
3. The isolation suit respiratory support apparatus of claim 2, wherein: the filter cloth is arranged in the air passage in a plurality of continuous V-shaped folded shapes so as to increase the filtering and ventilating area to a greater extent.
4. A filter cartridge for a barrier suit respiratory support apparatus according to claim 3, wherein: the extension direction of the V-shaped folds of the filter cloth is consistent with the length direction of the filter element base body so as to continuously arrange more V-shaped folds.
5. The isolation suit respiratory support apparatus of claim 1, wherein: the cover plate is also provided with a circle of lap joint edge on the outer side of the circle of convex edge, the lap joint edge is in lap joint with the outer edge of the opening, and a sealing ring is clamped between lap joint surfaces of the lap joint edge and the opening; the sealing ring is embedded in a ring of ring groove formed in the outer edge of the opening.
6. The isolation suit respiratory support apparatus of claim 5, wherein: two raised elastic clamping legs are symmetrically arranged on two sides of the inner side surface of the lap joint edge, free ends of the two elastic clamping legs deviate from each other and extend, two clamping grooves corresponding to the two elastic clamping legs are formed in the inner wall of the filtering unit mounting area, and the two elastic clamping legs are correspondingly clamped in the two clamping grooves after elastic deformation so as to realize connection of the cover plate and the main box body.
7. The isolation suit respiratory support apparatus of claim 6, wherein: the side surface of the rectangular box body where the opening is located is provided with a concave part, and the concave part extends towards the opening and extends to intersect with the outer edge of the opening so as to open the cover plate from the concave part;
the edge of the outer end face of the side wall of the circumference of the filter element base body is connected with two flexible pulling pieces, and the two flexible pulling pieces are symmetrically arranged so that the filter element can be conveniently taken out of the filter unit installation area when the filter element is replaced.
8. The isolation suit respiratory support apparatus of claim 5, wherein: the two side surfaces of the rectangular box body are arc surfaces along the long edge direction of the rectangular box body so as to be more fit with the radian of the waist of a human body, the arc surface at the inner side and the arc surface at the outer side are arranged at equal intervals, the opening is formed in the arc surface at the outer side, and the outer edge of the opening is a plane;
a first flow guide inclined plane is arranged on one surface of the partition board facing the power fan mounting area and used for guiding air entering the power fan mounting area from the air passing port to the power fan mounted in the power fan mounting area;
and a second diversion inclined plane is arranged in the air outlet area and used for guiding air entering the air outlet area through the power fan mounting area to the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358154.3A CN111467697B (en) | 2020-04-29 | 2020-04-29 | Isolation suit respiratory support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358154.3A CN111467697B (en) | 2020-04-29 | 2020-04-29 | Isolation suit respiratory support device |
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| Publication Number | Publication Date |
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| CN111467697A CN111467697A (en) | 2020-07-31 |
| CN111467697B true CN111467697B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010358154.3A Active CN111467697B (en) | 2020-04-29 | 2020-04-29 | Isolation suit respiratory support device |
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| CN205516071U (en) * | 2016-03-17 | 2016-08-31 | 祝旭彤 | Multi -functional nose cup formula respirator of pressure -fired |
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| CN111467697A (en) | 2020-07-31 |
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