CN1088386C - Repeatedly usable filter frame and filter for fluid using the same - Google Patents
Repeatedly usable filter frame and filter for fluid using the same Download PDFInfo
- Publication number
- CN1088386C CN1088386C CN97196250A CN97196250A CN1088386C CN 1088386 C CN1088386 C CN 1088386C CN 97196250 A CN97196250 A CN 97196250A CN 97196250 A CN97196250 A CN 97196250A CN 1088386 C CN1088386 C CN 1088386C
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- Prior art keywords
- filter
- flange
- flange part
- tongue
- junction surface
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- 239000012530 fluid Substances 0.000 title claims abstract description 31
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 13
- 230000000994 depressogenic effect Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000001914 filtration Methods 0.000 abstract description 10
- 238000005452 bending Methods 0.000 abstract 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 210000003296 saliva Anatomy 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 206010062717 Increased upper airway secretion Diseases 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002781 deodorant agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003230 hygroscopic agent Substances 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 208000026435 phlegm Diseases 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0015—Throw-away type filters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/1055—Filters bacterial
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/40—Special measures for connecting different parts of the filter
- B01D2201/4084—Snap or Seeger ring connecting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2265/04—Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
- Filtration Of Liquid (AREA)
Abstract
To provide a filter frame which enables a filtering medium to be easily renewed on a site and makes it possible to provide a filter at a low cost. The filter frame comprises a pair of frame elements capable of being integrally coupled together through flange bonding, each frame element comprising a passage portion allowing the passage of a fluid to be filtered and a flange portion outwardly disposed at a peripheral end portion of said passage portion, and that each of said flange portions has at least one bending portion, and said two flange portions, when coupled together, are engaged with each other based upon at least one tongue-in-groove connecting portion with said filtering medium being sandwiched between said flange portions.
Description
Invention field
The present invention relates to filter fluid, particularly filtering gas.More particularly, the present invention relates to a kind of filter that filters fluid with installation and the fixing filter mounting that filters the filter medium of fluid.The filter mounting of filter of the present invention is assembled into a filter at the use scene easily, and can separate easily with the renewal filter medium, and then assembles.Filter of the present invention can be used to filter multiple fluid, especially can be at medical detector, such as the breathing breath of filtering the people in breathing apparatus, Anesthesia machine, survey PFT machine, spirometer or the like.
Background of invention
The filter of polytype filtration fluid has been proposed up to now.Known filter comprises allows that shell and that fluid passes through is contained in the filter medium in the shell.Shell is airtight, thereby does not in use have fluid leaks, and shell forms whole with ultrasonic bond vitrified (ultrasonic melt-adhesion) or similar approach.
United States Patent (USP) the 3rd, 932 discloses for No. 153 and a kind ofly can effectively control the filter of especially effectively controlling bacterium.Shown in the profile of Fig. 6, filter 20 comprises a pair of have the tapered runner member 21 of flange 22 and 32 and 31 sub-assembly.These two flanges are joined together to form a shell, form a runner 23 to allow fluid pass through in shell.Fluid direction as shown by arrows flows.Flange 22 and 32 is bonded together by ultrasonic bond vitrified, and filter medium 24 is clipped between two flanges, forms an airtight shell.For the flange of filter when the tensioning filter medium can be easy to the location when the bonding, a flange is provided with a V-shaped groove 25 and a groove 26, and another flange is provided with the triangular hill and a bossing of a correspondence.Disclose the 0th, 265 at european patent application, also disclose similar filter in No. 163.
In the KOKYU magazine, " checking effective filter of the spirograph in the PFT equipment " that people such as Nishimura are published on the 641st to 645 page of the 6th phase of volume nineteen ninety-five the 14th discloses the filter that is used for checking PFT equipment spirograph.This is because when people's breathing breath directly enters in the measurement device, in breath, saliva and the phlegm in the entrained bacterium circuit in can access arrangement, thereby produce adverse influence to measuring.Perhaps, after equipment repeatedly used repeatedly, human body may infect the polluter in the equipment.The filter of employed spirograph is a kind of special filter of being made by Chest MI company in this equipment, C-8F (parts number), and the Fig. 1 on the 642nd page of KOKYU magazine shows its using method.Although do not describe in detail in KOKYU, this filter is made with plastic material, and it comprises that a pleating netted filtering medium improves filter effect.The shell of this filter is made with ultrasonic bond vitrified method.
When above-mentioned filter and other conventional filter are used for medical detector such as breathing apparatus, Anesthesia machine, survey PFT machine, spirometer or the like, these filters are effectively for bacterium, saliva and the phlegm that the removal people breathes in the breath, can avoid equipment to be subjected to the pollution of bacterium.Perhaps, on the other hand, when equipment was subjected to polluting, such filter can prevent that human body is subjected to the infection of bacterium.
But above-mentioned conventional filter manufacturing bothers very much, and the cost height, because shell is to make integrally-built with ultrasonic bond vitrified or similar method.According to above-mentioned KOKYU magazine, each part cost of disposable muzzle parts that will abandon after using each time reaches 20 yuan, and each part cost of filter is up to 290 yuan.In addition, because filter medium is firmly fixed, when filter medium was contaminated, filter body also must abandon, and is so very uneconomical.Especially, when the user of filter was the patient that infectious disease arranged, contaminated although filter body does not have, filter also must abandon, and this is very disadvantageous.
An object of the present invention is to provide a kind of filter that is used to filter fluid, its filter mounting can be reused, and is easy to manufacture, and do not have above-mentioned built in problem.
Another object of the present invention provides a kind of filter that filters fluid, and this filter cost is low, can reuse after upgrading filter medium.
Another purpose of the present invention provides a kind of filter, and this filter can upgrade filter medium easily at the use scene, even one is unfamiliar with the people who upgrades filter medium and also can accomplishes.
Invention description
But the invention provides a kind of filter of installing and fixing the reusable filter mounting of filter medium that has.The filter mounting of filter comprises a pair of support element that can integrally link together by the combination of flange.Each support element comprises channel part that permission fluid to be filtered passes through and the flange part that is arranged on the peripheral end of described channel part one day outward.Each described flange part has a bend at least, and when described two flange parts linked together, they were engaged with each other together by at least one tongue-and-groove junction surface, and described filter medium then is clipped between described two flange parts.Herein, as will be described in detail below, appear at the device that speech " tongue-and-groove junction surface " representative in the specification is bonded together the relative flange part of pair of brackets member, a recess that places another flange part such as a: lug boss of a flange part is with flange engages together, the combination of a hemisphere lug boss and half ball depressed part; One triangular hill is deployed in a corresponding with it V-shaped groove; One corrugated lug boss places a corresponding with it corrugated depressed part, or the like.
According to filter of the present invention, when forming filter, it has at least a tongue-and-groove junction surface and at least one to be formed on bend in the flange part of support element, and do not need with further processing technology such as ultrasonic bond vitrified technology etc.Filter medium removably is fixed in the filter, when needing, and renewable filter medium.Flange part is provided with a bend at least, and bend can prevent to flow through the gap outflow of fluid between flange of filter.The combination at bend and tongue-and-groove junction surface can increase the engaging force of flange part.When filter without the time, such as will upgrade filter medium the time, available hand is separated from each other flange part easily.
Used in this article term " flange in conjunction with " is meant and essentially identical combination of " flange combines " implication or bindiny mechanism in being commonly used in mechanical engineering field.Combining mechanism comprises with a pair of formation filter mounting with also as the support element of flange.The facing surfaces of described two stands member contacts with each other and forms filter mounting.Be noted that, in flange combination of the present invention, the bolt or other fixture that generally are used in traditional flange combination all need not used, but, as will be described below, for flange part is assembled together, replace such as bolt or other fixtures with the tongue-and-groove junction surface in the flange portion.
As mentioned above, the function of filter mounting of the present invention is to install and fixing fluid filter media.Herein, " fluid " speech comprises from industrial gas, treatment with the scope wider gas of oxygen to people's breathing breath, to the fluid that filters without any restriction.Therefore, the filter of filter mounting of the present invention and use filter mounting can be advantageously used in various industry and the filter personal and that medical detector is used.For the ease of understanding the present invention in the following description, the fluid of giving an example (promptly to be filtered) is people's breathing breath.
According to the present invention, filter mounting comprises the pair of brackets member, and by this flange combination to the corresponding flange portion of support element, this can connect into an overall structure to support element.Do not need to adopt other fastener such as binding agent or ultrasonic bond vitrified just can link together support element.The present invention is that with the flange part connected structure two stands member to be fixed into one integrally-built.
Each support element has a channel part that a fluid that will filter can flow through and a peripheral end at the channel part flange part outside facing.Shape to channel part has no particular limits, and flows just passable glibly as long as flow path guarantees the fluid that will filter.Channel part is preferably the shape of cylindrical shape or type.From the viewpoint of and tension filter medium firmly fixing with flange part, the shape of cross section of wishing flow path is circular, oval-shaped or polygonal.For strain can be evenly distributed on the flange part, wish that the flow path shape of cross section is circle or oval-shaped.It is as much as possible little to consider to make filter when using filter.
The flange part of each support element has a bend and the combination of at least one tongue-and-groove junction surface at least.When two relative support elements linked together by flange part, the mating reaction by bend and tongue-and-groove junction surface can obtain a firm joint, and filter medium is clipped in and is firmly held between the flange.Be clipped in filter medium between the flange part and may extend in the gap between the flange part, also can extend to any desired position always according to fastening required fastening effect.For example, filter medium may extend into flange part a bend the front or surpass bend.When needing, filter medium also may extend into a position in tongue-and-groove bonding station front.For more fixing filter medium, flange part can be provided with in addition one be used in tenon groove structures different in the flange part originally, such as one cancavo-convex, hemispheric, undulatory, U-shaped, V-arrangement or arc, the V-arrangement junction surface 29 among the Fig. 5 that hereinafter will mention for example.
The tongue-and-groove junction surface that is formed on flange part can be any type of, can be arranged on any position.Relevant tongue-and-groove junction surface, for example, a flange part can be provided with a depressed part, and another flange part is provided with a lug boss.In addition, as general in embodiment one joint is described in conjunction with the accompanying drawings, a flange part can be provided with a hemispherical depression portion, and another flange part can be provided with a hemispherical projections portion.In addition, the cross section at tongue-and-groove junction surface can be undulatory, U-shaped or arc.When needs were further strengthened bond strength, suggestion was bent flange part three times, thereby formed three bends at flange part, and the tongue-and-groove junction surface was arranged on basically the next door of a bend on the flange outer periphery end.Although shown embodiment only shows a tongue-and-groove junction surface, a plurality of tongue-and-grooves junction surface can be set when needing.
Support element can be made of a variety of materials, but a kind of plastic material of flexibility preferably.The example of preferable plastic material comprises the interchangeable heat plastic material, and such as polypropylene, polyethylene and polystyrene, but the present invention is not limited to use these materials.Use described material as parent material, with regard to available common method of moulding such as injection-molded, vacuum moulded or compressed air is molded that support element is molded as a required shape.
The big I of support element according to as factors such as the size of required filter and change.For example, when filter is used for when medical detector filters people's breathing breath, just require support element enough little so that the user can not feel inconvenient in use.Similarly, require the thickness of support element as far as possible little, but still make filter have required intensity with minimizing weight.
As mentioned above, the flange part of filter mounting is bonded together just can be easily fixing filter medium.For the filter medium restriction that has nothing special, as long as it has the required filter capacity of filter, and it is just passable to have the thickness and the intensity that can remain between the flange part.Therefore, be applicable in the multiple filter media that the filter medium of filter of the present invention can buy from the market and selected.General recommendations is used by the filter medium natural or supatex fabric that synthetic material is made.When the fluid that will filter is people's breathing breath, preferably use a kind of non-woven electret (nonwoven electret) filter medium, the filter medium that promptly has the low pressure loss and high capture rate, thereby osmotic resistance is lower when producing breathing naturally or being compelled to breathe, yet still can stop bacterium, saliva or the like very effectively.A kind of patent of having examined of Japan that is disclosed in announces that non-woven electret filter media in (Kokoku) 56-47299 and 59-124 number and that can buy " FILTRETE " board of the Sumitomo 3M company that obtains from the market is an acceptable.When using " FILTRETE ", the basis weight that requires it is every square metre of about 10 to 300 gram.When needing moisture absorbing, filter medium can add that one comprises the moisture absorption layer of the non-woven layer that is impregnated with hygroscopic agent, or filter medium contains the hygroscopic agent that is distributed in wherein.Similarly, if desired, filter medium can add several layers in addition, such as deodorizing layer or antibiotic layer.For example, a non-woven layer can be impregnated with deodorant or antiseptic, and perhaps it can contain other and is distributed in wherein for example deodorant, antiseptic or similar preparation.Also have, filter medium can be a single layer structure, also can be sandwich construction.
According to the present invention, using filter mounting to obtain filter can have several different methods.For example, the flange part in the support element of the size filter medium that is equal to or greater than flange part and filter mounting contacts.Then, in the tensioning filter medium, on the support element that another support element is pulled to filter medium contacts, the two stands member is bonded together by the tongue-and-groove junction surface and the bend of flange part.Like this, just form one combine become an integrally-built filter mounting, a filter medium is fixed in the support, keeps the air-tightness in the fluid course simultaneously.
Filter has used after the pre-determined number, can easily filter be separated, so that change contaminated or damaged filter medium with a new filter medium.Basically, come separator-filter with the order opposite with the assembling filter device.That is, the end of the outward flange portion between two flange parts is peeled off outwardly with a finger tip.So stable joint has lost balance, filter just is easy to separate.When the inside of filter mounting is contaminated, or pollute when the material of bacterium and so on is arranged, suggestion carries out disinfection or pasteurizes filter mounting with suitable disinfectant measure such as oxirane (EO) chlorination equipment or boiling apparatus, or with suitable cleaning agent filter rinsed support.
Filter of the present invention can be advantageously utilised in multiple filter or the similar device.When filter of the present invention is used for spirometer or measures the entering of PFT equipment/when discharging cylinder, the fluid intake and the outlet of formation filter mounting there is not special machined requirement.The just diameter of fluid issuing that needs is suitable for being assembled to the insertion end that enters/discharge cylinder and gets on, and the fluid issuing of filter mounting just can be assembled on the insertion end of inlet/outlet cylinder like this.The fluid intake of filter mounting can have the form of oneself, or is designed to and can so just can uses for many people with disposable pull mouth parts dress thereon.Perhaps, the fluid intake of filter media can form screw thread or a flange, is set heaves a portion or a depressed part, so that can connect other parts when needed.
Brief Description Of Drawings
Fig. 1 is a front view, and it shows a preferable filter of the present invention that is used to filter the breathing breath that combines with a filter mounting.
Fig. 2 is a profile, and it shows structure of filter shown in Figure 1 in a kind of mode of expansion.
Fig. 3 is a profile, and it shows the structure of the flange part of filter shown in Figure 1 with the ratio of amplifying.
Fig. 4 is a profile, and it shows another preferred embodiment of filter of breathing breath with the filtration of filter mounting combination of the present invention with the ratio of amplifying, and this figure is corresponding to Fig. 3.
Fig. 5 is a profile, and it shows the another preferred embodiment of filter of breathing breath with the filtration of filter mounting combination of the present invention with the ratio of amplifying, and this figure is corresponding to Fig. 3.
Fig. 6 is a profile, and it shows a traditional filtration and breathes the filter of breath.
The detailed description of preferred embodiment
Describe the filter and the filter mounting that is used for this filter of a preferred embodiment of the present invention in detail below in conjunction with accompanying drawing.But it should be understood that here the present invention never only only limits to these embodiment.
Fig. 1 shows with the filtration of filter mounting assembling of the present invention and breathes a preferable filter of breath.Below in conjunction with accompanying drawing 2 and 3 filter is described.Filter 10 has a filter mounting, and it comprises pair of brackets member 1 and 2, and they link together by flange part 5 and 6 becomes an overall structure.In this filter, support element 1 and 2 is arranged on the major part of filter and has channel part 3 and 4 pass through allow to breathe breath.Flange part 5 and 6 has bend 7 and 8 (see figure 2)s respectively.Flange part firmly is bonded together because of bend and adjacent tongue-and-groove junction surface 9, thereby makes shell keep airtight.As shown in Figure 2, the mode of the runner that filter medium 15 forms with interrupting channel portion is arranged on the centre of channel part 3 and 4, and fixes by the joint of flange part 5 and 6.Filter medium 15 in the mode of tensioning, be substantially perpendicular to and breathe the breath flow direction and be arranged in the filter 10.
The flange part engagement state of the filter 10 shown in Fig. 1 and 2 will seem clearer in the profile that Fig. 3 amplifies.In an illustrated embodiment, tongue-and-groove junction surface 9 is that the combination of the convex hemispherical protrusion by a hemispherical depression portion and a correspondence forms.But as previously mentioned, tongue-and-groove junction surface 9 can be other version, such as recessed/male structure, wave structure or similar structures are arranged.Filter medium 15 extends on the position in the gap that is formed by flange part 5 and 6 of 9 fronts, tongue-and-groove junction surface.But if fixing enough, filter medium 15 can terminate on the part of bend or bend front.
Fig. 4 is an embodiment who changes to some extent of filter shown in Figure 3.In the embodiment that this changes to some extent, bend 7 and 8 quantity are increased to three from one, and tongue-and-groove junction surface 9 is formed on the end of flange part 5 and 6.In this embodiment, except tongue-and-groove junction surface 9, form the tongue-and-groove junction surface 19 of a recessed/male structure in addition by three bends.When flange part three times when crooked as shown in the figure, entire flange portion produces elasticity.The internal pressure that produces in flow channel during owing to the use filter produces stress, thereby makes the filter mounting expansion, and the junction surface of flange part abuts against together more forcefully thus.In addition, the end outside the junction surface and that be positioned on the surface that keeps filter medium that extends to of flange can be used as a guide, and the insertion support element is used for leading when the relative support element of filter mounting engages.
Fig. 5 shows the embodiment that the flanges flex portion shown in Fig. 4 is changed to some extent.Among the embodiment shown in this, flange part 5 and 6 is bonded together by three the formed tongue-and-groove of bend junction surfaces 19 by recessed/male structure, has omitted the tongue-and-groove junction surface 9 shown in Fig. 4.In this embodiment, be provided with an other V-shaped groove junction surface 29, to reinforce the fixing and tensioning filter medium 15 of filter medium 15 in the position of close flange base portion A and B.
The manufacturing of filter of the present invention and the feature of filter are described below.The filter of manufacturing is that class described in conjunction with Figure 1, has flange part shown in Figure 4.
Obtain the filter mounting member with vacuum moulded polystyrene sheet material (0.7 millimeters thick).Filter medium is sandwiched in and is fixed between the two relative flange parts of filter mounting member, to finish filter of the present invention.Used filter medium is Filtrete
TMGSB-20 DSCC-A (thick about 0.7 millimeter, can buy from Sumitomo 3M company by every square metre of heavily about 50 gram.
With a tester formed filter is carried out air tightness test.The pressure of filter interior rises to 500 millimeters of water (mmAQ), suds is added to the periphery at the junction surface of flange part.Can't see bubble from added suds, expression does not have air to leak out from filter.Also air is blown over filter with the speed of 2000 Liter Per Minutes in addition, filter medium does not peel off.
According to above-mentioned the present invention, provide a kind of filter mounting that structure of filter of the present invention is simple, easily manufactured and cost decreases that is used for.Filter mounting can be divided into the filter mounting member, and they can overlappingly be placed when needing, to reduce the transportation and the storage area of filter mounting.In addition, filter is easy to assemble at the scene that will use, without any need for special technical ability.In addition, filter is easy to separately.Therefore, contaminated or damage and when being substituted reusable filter medium when filter medium by a new filter medium.Before replacing filter medium, can be easily to cleaning with the filter mounting of crossing or sterilizing.Resource has been saved in the repeated use of filter mounting, has reduced the quantity of refuse.Also have, owing to filter can be made under the situation that does not need high-frequency melting bonding (high frequency melt-adhesion), thus can reduce manufacturing step, and can reduce cost.
Claims (8)
1. filter that is used to filter fluid, it is characterized in that, described filter mounting has a constant thickness, it comprises a pair of support element that integrally links together by the flange binding energy, each support element comprises channel part that a fluid that allows to filter passes through and the flange part that is arranged on the peripheral end of described channel part one day outward, each of described flange part has a bend at least, when described two flange parts are combined, they are engaged with each other together by at least one tongue-and-groove junction surface, and described filter medium is clipped between the described flange part simultaneously.
2. filter as claimed in claim 1 is characterized in that, described tongue-and-groove junction surface is formed on a hemispherical projections and the combination that is formed on the hemispherical depression portion on another flange part on the flange part by one and constitutes.
3. filter as claimed in claim 1 is characterized in that, described flange part has a bend, and described tongue-and-groove junction surface is near the described bend setting on the peripheral end of flange.
4. filter as claimed in claim 1 is characterized in that described flange part has three bends, and described tongue-and-groove junction surface is near a setting in the described bend on the peripheral end of flange.
5. filter as claimed in claim 1 is characterized in that, described tongue-and-groove junction surface constitutes by the combination of the depressed part that a lug boss that is formed by three bends on a flange part and are formed by three bends on another flange part.
6. as any one the described filter in the claim 1 to 5, it is characterized in that described filter mounting is made by the plastic material of flexibility.
7. as any one the described filter in the claim 1 to 5, it is characterized in that described filter medium is a kind of non-woven electret filter material.
8. filter as claimed in claim 6 is characterized in that, described filter medium is a kind of non-woven electret filter material.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8180524A JPH1033910A (en) | 1996-07-10 | 1996-07-10 | Repeatedly usable filter frame body and filter therewith for filtrating fluid |
| EP97933348A EP0912228A1 (en) | 1996-07-10 | 1997-07-09 | Repeatedly usable filter frame and filter for fluid using the same |
| PCT/US1997/011955 WO1998001212A1 (en) | 1996-07-10 | 1997-07-09 | Repeatedly usable filter frame and filter for fluid using the same |
| CN97196250A CN1088386C (en) | 1996-07-10 | 1997-07-09 | Repeatedly usable filter frame and filter for fluid using the same |
| US09/106,229 US6033455A (en) | 1996-07-19 | 1998-06-29 | Repeatedly usable filter frame and filter for fluid using the same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP180524/96 | 1996-07-10 | ||
| JP8180524A JPH1033910A (en) | 1996-07-10 | 1996-07-10 | Repeatedly usable filter frame body and filter therewith for filtrating fluid |
| CN97196250A CN1088386C (en) | 1996-07-10 | 1997-07-09 | Repeatedly usable filter frame and filter for fluid using the same |
| US09/106,229 US6033455A (en) | 1996-07-19 | 1998-06-29 | Repeatedly usable filter frame and filter for fluid using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1225033A CN1225033A (en) | 1999-08-04 |
| CN1088386C true CN1088386C (en) | 2002-07-31 |
Family
ID=27179170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97196250A Expired - Fee Related CN1088386C (en) | 1996-07-10 | 1997-07-09 | Repeatedly usable filter frame and filter for fluid using the same |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0912228A1 (en) |
| JP (1) | JPH1033910A (en) |
| CN (1) | CN1088386C (en) |
| WO (1) | WO1998001212A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19631278A1 (en) * | 1996-08-02 | 1998-02-05 | Mann & Hummel Filter | Snap-in center tube |
| EP1129743B1 (en) * | 2000-03-02 | 2006-05-10 | Fisher & Paykel Healthcare Limited | Filter |
| DE10131422C2 (en) * | 2001-06-29 | 2003-05-08 | Sandler Helmut Helsa Werke | Filter element with a pleated filter pack |
| US7922005B2 (en) * | 2007-03-29 | 2011-04-12 | Toyota Motor Engineering & Manufacturing North America, Inc. | Removable shield in an engine oil strainer |
| CN102489065A (en) * | 2011-12-14 | 2012-06-13 | 贵州瓮福蓝天氟化工股份有限公司 | Filter |
| FR2992227B1 (en) * | 2012-06-20 | 2022-04-01 | Commissariat Energie Atomique | FILTRATION ASSEMBLY FOR FILTERING NANOPARTICLES COMPRISING A FILTER AND A FILTER SUPPORT, ASSOCIATED APPARATUS AND METHOD FOR ASSEMBLING THE ASSEMBLY AND METHOD FOR COLLECTING AND ANALYZING ASSOCIATED NANOPARTICLES. |
| CN107795702B (en) * | 2017-10-17 | 2019-07-09 | 珠海优特智厨科技有限公司 | Air-flow quantity regulating device and flow control system |
| US20210331110A1 (en) * | 2020-04-23 | 2021-10-28 | Usa As Represented By The Secretary Of The Army | Filter Cartridge with Turbulence Generating Features |
| CN112302803B (en) * | 2020-11-16 | 2023-06-23 | 无锡华南钢结构环保有限公司 | Cylindrical filter element mounting tube plate for gas inlet system of gas turbine |
| CN115779224B (en) * | 2023-02-07 | 2023-05-05 | 山东中医药大学附属医院 | Breathe internal medicine with breathing machine filter equipment that admits air |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148732A (en) * | 1977-04-05 | 1979-04-10 | Burrow Clovis E | Bacteria filter unit |
| US5195527A (en) * | 1989-05-19 | 1993-03-23 | Intersurgical Limited | Respiratory filters |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE788211A (en) * | 1971-09-16 | 1973-02-28 | Pall Corp | DEVICE AVAILABLE FOR FILTERING GAS |
| US4215682A (en) * | 1978-02-06 | 1980-08-05 | Minnesota Mining And Manufacturing Company | Melt-blown fibrous electrets |
-
1996
- 1996-07-10 JP JP8180524A patent/JPH1033910A/en active Pending
-
1997
- 1997-07-09 WO PCT/US1997/011955 patent/WO1998001212A1/en not_active Application Discontinuation
- 1997-07-09 EP EP97933348A patent/EP0912228A1/en not_active Ceased
- 1997-07-09 CN CN97196250A patent/CN1088386C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148732A (en) * | 1977-04-05 | 1979-04-10 | Burrow Clovis E | Bacteria filter unit |
| US5195527A (en) * | 1989-05-19 | 1993-03-23 | Intersurgical Limited | Respiratory filters |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1033910A (en) | 1998-02-10 |
| WO1998001212A1 (en) | 1998-01-15 |
| EP0912228A1 (en) | 1999-05-06 |
| CN1225033A (en) | 1999-08-04 |
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