CN111482008A - Air filter for civil air defense - Google Patents
Air filter for civil air defense Download PDFInfo
- Publication number
- CN111482008A CN111482008A CN202010322624.0A CN202010322624A CN111482008A CN 111482008 A CN111482008 A CN 111482008A CN 202010322624 A CN202010322624 A CN 202010322624A CN 111482008 A CN111482008 A CN 111482008A
- Authority
- CN
- China
- Prior art keywords
- filter
- adapter
- filtering unit
- slide
- slide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- 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
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
- B01D46/0008—Two or more filter elements not fluidly connected positioned in the same housing
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
-
- 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
- B01D46/88—Replacing filter elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a civil air defense air filter which comprises a filter shell, a fine filtering unit and a toxin filtering unit, wherein the fine filtering unit and the toxin filtering unit are arranged in the filter shell; the inlet adapter and the outlet adapter are connected with the filter shell through a rotating flange in an axial limiting and circumferential rotating mode. The design of the installation of adopting the grafting makes the installation of meticulous filter unit and toxin filtering unit very convenient, and the design is rotated with filter housing to entry adapter and export adapter of deuterogamying for can rotate side or lower extreme with the installing port when dismantling, so, can be more convenient when installation and taking out meticulous filter unit and toxin filtering unit.
Description
Technical Field
The invention relates to the technical field of civil air defense equipment, in particular to a civil air defense air filter.
Background
Chinese patent application publication No. CN110772896A discloses an air filtering absorber, which comprises a filter housing, a radical generator, a fine filtering unit and a toxin filtering unit, wherein air inlets and air outlets are arranged at two ends of the filter housing, an air inlet diffuser is fixedly arranged between an outlet of the air inlet and one end of the filter housing, an air outlet diffuser is arranged between the other end of the filter housing and the inlet of the air outlet, the radical generator extending into the air inlet diffuser is arranged on the outer wall of the air inlet diffuser, the fine filtering unit is fixed on the inner wall of one end of the filter housing and close to the outlet of the air inlet diffuser, and the toxin filtering unit is arranged in the filter housing between the fine filtering unit and the inlet of the air outlet diffuser; and inlet and outlet adapters are respectively arranged on the end part of the air inlet and the end part of the air outlet.
The filter absorber in the above-mentioned patent, it is comparatively loaded down with trivial details when needs are changed coarse filtration net, meticulous filter unit or toxin filtering unit, consequently, need optimize its structure for the change of coarse filtration net, meticulous filter unit or toxin filtering unit in it is more convenient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a civil air defense air filter which has the advantage of convenience in replacement of a fine filtering unit and a toxin filtering unit.
The technical purpose of the invention is realized by the following technical scheme:
a civil air defense air filter comprises a filter shell, a fine filtering unit and a toxin filtering unit, wherein the fine filtering unit and the toxin filtering unit are arranged in the filter shell; the inlet adapter and the outlet adapter are connected with the filter shell through a rotating flange in an axial limiting and circumferential rotating mode.
So set up, at first set up a installing port to adopt the design of grafting installation, make the installation of meticulous filter unit and toxin filtering unit very convenient, in addition, the design is rotated with filter housing to entry adapter and export adapter of deuterogamying, makes and can rotate side or lower extreme with the installing port when dismantling, so, can be more convenient when installing and taking out meticulous filter unit and toxin filtering unit, especially to the higher occasion of filter installation.
More preferably: the filter comprises a rotating flange and is characterized in that a clamping ring and the other end of the rotating flange are arranged on the inner wall of one end of the rotating flange and fixedly connected with a filter shell, and an annular clamping groove matched with the clamping ring is formed in the inlet adapter and the outlet adapter.
So set up, realize that filter housing and entry adapter/export adapter's rotation is connected.
More preferably: the rotary flange comprises a first flange ring and a second flange ring, and the first flange ring and the second flange ring are identical in shape and structure and are both semicircular.
So set up, adopt the structure of components of a whole that can function independently flange for the installation of rotating the flange is simpler.
More preferably: the rotary flange is provided with a spring bolt, the inlet adapter and the outlet adapter are at least provided with two insertion holes matched with the spring bolt, and the insertion holes are positioned on the quadrant points of the inlet adapter/the outlet adapter.
So set up, the setting of spring bolt can fix a position entry adapter and export adapter, so, when not needing the rotation, the unable emergence of filter housing is rotated to can be convenient for filter installation and stable in the use.
More preferably: the rotary flange is provided with a threaded hole, the spring bolt comprises a connecting sleeve connected with the threaded hole, a connecting rod inserted in the connecting sleeve, a compression spring sleeved on the connecting rod and a limiting plug connected to the connecting rod, the two ends of the compression spring are respectively abutted against the limiting plug and the connecting sleeve, and one end, far away from the limiting plug, of the connecting rod is provided with a pull ring.
Due to the arrangement, the spring bolt is very convenient to mount and can be directly mounted on the threaded hole in a threaded manner; when the limiting plug is used, the limiting plug can be automatically matched with the insertion hole under the action of the compression spring, and when the limiting plug is in contact with the insertion hole for insertion matching, the connecting rod is pulled through the pull ring.
More preferably: the filter shell is internally provided with a plurality of installation slide rail sets which are respectively used for installing the fine filtration unit and the toxin filtration unit, each installation slide rail set comprises two installation slide rails, and each installation slide rail comprises a slide way and a slide plate which is arranged on the slide way in a sliding way.
So set up, when meticulous filter unit and the installation of straining poison unit, with both sides and the installation of slide plate fixed back, it can in the filter casing to push back along the slide.
More preferably: and a rubber sheet is arranged on the end surface of the sliding plate.
So set up, the rubber sheet can guarantee that the installation between slide plate and meticulous filter unit/toxin filtering unit has good leakproofness.
More preferably: one of them the installation slide rail is the slope slide rail, the slope slide rail includes slope slide and slides the slope slide board of installing on the slope slide, the slope slide is right trapezoid with the cross section of slope slide board.
So set up, adopt the setting of slope slide rail, with the in-process that the slope slide board promoted in to the filter casing, the slope slide board can also remove to the direction of perpendicular to slope slide board by a small margin, so, with meticulous filter unit/strain the in-process that the poison unit promoted in to the filter casing, can compress tightly meticulous filter unit/strain the poison unit to ensure to have better leakproofness.
More preferably: a limiting gear is arranged on a slide way opposite to the inclined slide way in the same mounting slide rail group, and a limiting rack meshed with the limiting gear is arranged on the sliding plate; the inner side of the limiting gear is provided with an inner ratchet wheel, the inner side of the limiting gear is provided with a pawl matched with the inner ratchet wheel, the slide way is connected with a control rod capable of being adjusted along the axial direction, and the control rod is connected with the pawl.
So set up, through the setting of interior ratchet and pawl for limiting gear can only unidirectional rotation when including ratchet and pawl cooperation state, thereby make meticulous filter unit/strain the poison unit and can only push in to the filter housing, so can avoid setting up of slope slide rail to make meticulous filter unit/strain the poison unit and popped out. When the fine filtering unit/toxin filtering unit needs to be pulled out, the control rod moves axially to separate the pawl from the inner ratchet wheel, and the limit of the limit gear can be released.
More preferably: the improved ratchet wheel is characterized in that a threaded mounting hole is formed in the slide way, one end, far away from the pawl, of the control rod is rotatably connected with a threaded head, the threaded head is connected to the threaded mounting hole in a threaded mode, and a tool groove is formed in the end portion of the threaded head.
So set up, can carry out axial regulation and control to the control lever through control thread head rotates.
In conclusion, the invention has the following beneficial effects:
1. the design of insertion connection enables the installation and the disassembly of the fine filtering unit and the toxin filtering unit to be simple and convenient;
2. due to the design of the inclined slide rail, the fine filtering unit and the toxin filtering unit can form a good sealing effect after being installed in a sliding manner;
3. due to the design of the limiting gear, the inner ratchet wheel and the pawl, the fine filtering unit and the toxin filtering unit are not easy to have a rubber sheet when being installed, and the fine filtering unit or the toxin filtering unit is not easy to be popped out in the compressing process, so that the installation can be realized more conveniently.
Drawings
FIG. 1 is a schematic view of the first embodiment
FIG. 2 is a schematic view of an inlet adapter and filter housing connection according to an embodiment;
FIG. 3 is a schematic view of a first flange ring and spring latches according to one embodiment;
FIG. 4 is a schematic view of the internal structure of the first embodiment;
FIG. 5 is a schematic structural diagram of a slide rail set according to the first embodiment;
FIG. 6 is a schematic structural diagram of a slide rail set according to the second embodiment;
FIG. 7 is a schematic structural view of the mounting of the slide rail and the limit gear in the second embodiment;
FIG. 8 is a schematic structural view of an inner ratchet and a pawl in the second embodiment;
fig. 9 is a schematic structural view of a pawl in the second embodiment.
In the figure, 100, the filter housing; 110. a fine filtering unit; 120. a toxin filtering unit; 130. an installation port; 140. a top cover; 200. an inlet adapter; 210. an annular neck; 220. inserting holes; 300. an outlet adapter; 400. rotating the flange; 410. a first flange ring; 411. a snap ring; 412. a threaded hole; 420. a second flange ring; 500. a spring bolt; 510. connecting sleeves; 511. a straight-shaped groove; 520. a connecting rod; 521. a pull ring; 530. a compression spring; 540. a limit plug; 600. mounting a slide rail group; 610. installing a slide rail; 611. a slideway; 612. a slide plate; 613. a rubber sheet; 620. inclining the slide rail; 621. an inclined slideway; 6211. a threaded mounting hole; 622. an inclined slide plate; 700. a limit gear; 710. an inner ratchet wheel; 720. a pawl; 721. a plug-in part; 722. a spacing pin; 723. a return spring; 730. a control lever; 740. installing a sleeve; 750. a screw head; 751. a tool slot; 800. and a limiting rack.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: a civil air defense filter is disclosed, as shown in fig. 1 and fig. 4, comprising a filter housing 100, a fine filtering unit 110 and a poison filtering unit 120 which are installed in the filter housing 100, wherein an inlet adapter 200 and an outlet adapter 300 are respectively arranged at two ends of the filter housing 100, an air inlet is arranged on the inlet adapter 200, and an air outlet is arranged on the outlet adapter 300.
The filter housing 100 is provided at an upper end thereof with a mounting opening 130, a top cover 140 is mounted at the mounting opening 130, both sides of the top cover 140 are connected to both side walls of the filter housing 100 by bolts, and a rubber pad (not shown) is disposed on an inner side wall of the top cover 140 to ensure that the fine filtering unit 110, the toxin filtering unit 120 and the top cover 140 have excellent sealing performance after the top cover 140 is closed.
As shown in fig. 2, the inlet adapter 200 and the outlet adapter 300 are both axially and circumferentially rotatably connected to the filter housing 100 by a rotating flange 400. The rotating flange 400 is cylindrical and formed by splicing a first flange ring 410 and a second flange ring 420, and the first flange ring 410 and the second flange ring 420 have the same shape and structure and are both semicircular.
Referring to fig. 2 and 3, the inlet adapter 200 and the outlet adapter 300 are both provided with an annular clamping groove 210, a clamping ring 411 matched with the clamping ring 411 is arranged on the inner wall of one end of the rotary flange 400, and the other end of the rotary flange 400 is fixedly connected with the filter housing 100 through bolts.
The rotary flange 400 is provided with a threaded hole 412, the threaded hole 412 is provided with a spring bolt 500, the inlet adapter 200 and the outlet adapter 300 are at least provided with two insertion holes 220 matched with the spring bolt 500, the number of the insertion holes 220 is four in the embodiment, and the four insertion holes 220 are respectively located on four quadrant points of the inlet adapter 200/the outlet adapter 300.
Referring to fig. 3, the spring bolt 500 includes a connection sleeve 510, a connection rod 520, a compression spring 530, and a limit plug 540, the connection sleeve 510 is provided with a screw thread for connection with the screw hole 412, and one end of the connection sleeve 510 is provided with a straight groove 511. One end of the connecting rod 520 is provided with a pull ring 521, the other end of the connecting rod passes through the connecting sleeve 510 and the compression spring 530 in sequence and then is in threaded connection with the limit plug 540, and two ends of the compression spring 530 are respectively abutted against the limit plug 540 and the connecting sleeve 510.
As shown in fig. 4 and 5, a plurality of installation slide rail sets 600 for installing the fine filtration unit 110 and the toxin filtration unit 120 respectively are arranged in the filter housing 100, the installation slide rail set 600 includes two installation slide rails 610, the installation slide rails 610 include a slide rail 611 and a slide plate 612 slidably installed on the slide rail 611, a rubber sheet 613 is arranged on an end surface of the slide plate 612, and two sides of the fine filtration unit 110/the toxin filtration unit 120 are fixedly installed on the slide plate 612.
The mounting rail set 600 for mounting the fine filter unit 110 is provided with two mounting rails 610 fixedly mounted on two sidewalls of the filter housing 100. The poison filtering unit 120 is provided in a plurality of even numbers, a plurality of support plates are fixedly installed in the filter housing 100, the plurality of support plates are arranged in two rows, the support plates in each row are arranged at intervals for installing the installation slide rail set 600 of the poison filtering unit 120, and two installation slide rails 610 on the installation slide rail set are respectively and fixedly installed on two adjacent support plates which are respectively positioned on the two rows.
The working principle is as follows:
when the civil air defense filter needs to clean internal filtering components (namely the fine filtering unit 110 and the poison filtering unit 120) after being used for a period of time, the pull ring 521 can be pulled firstly to remove the matching of the elastic bolt and the inserting hole 220, then the filter shell 100 is rotated to enable the top cover 140 to rotate to the side from the original upper part, after the top cover 140 is disassembled, the filter is cleaned, after the cleaning is completed, the filter shell 100 is rotated again, and the dirt can be poured out by enabling the mounting hole 130 to face downwards.
When the filter needs to be replaced, the filter housing 100 is rotated to rotate the top cover 140 from the original upper side to the side, and after the top cover 140 is detached, the fine filter unit 110 and the toxin filter unit 120 are taken out and replaced.
Example 2: as shown in fig. 6, the difference from embodiment 1 is that one of the mounting slide rails 610 is an inclined slide rail 620, the inclined slide rail 620 includes an inclined slide 621 and an inclined slide plate 622 slidably mounted on the inclined slide 621, and the cross sections of the inclined slide 621 and the inclined slide plate 622 are in a right trapezoid shape.
In addition, a limiting gear 700 is rotatably connected to the slide rail 611 of the mounting slide rail set 600 of the same set, which is opposite to the inclined slide rail 621, and a limiting rack 800 engaged with the limiting gear 700 is arranged on the slide plate 612. Referring to fig. 7 and 8, an inner ratchet 710 is integrally provided inside the limit gear 700, and a pawl 720 engaged with the inner ratchet 710 is provided inside the limit gear 700.
A screw mounting hole 6211 is formed at one end of the slide rail 611 facing the mounting opening 130, referring to fig. 9, a control rod 730 is inserted into the screw mounting hole 6211, a mounting sleeve 740 is fixedly connected to one end of the control rod 730 inserted into the screw mounting hole 6211 through a bolt, a screw head 750 is rotatably connected to the other end of the control rod 730, the screw head 750 is screw-connected to the screw mounting hole 6211, and a tool groove 751 is formed at an end of the screw head 750.
The pawl 720 is provided with an insertion part 721, the mounting sleeve 740 is provided with a C-shaped insertion port, the insertion part 721 is inserted into the mounting sleeve 740 through the insertion port and limited by a limit pin 722, the insertion part 721 is sleeved with a return spring 723, one end of the return spring 723 abuts against the pawl 720, and the other end of the return spring 723 abuts against the mounting sleeve 740, so that the pawl 720 axially moves.
The working principle is as follows:
when the fine filter unit 110 and the poison filtering unit 120 need to be disassembled, the top cover 140 is disassembled after the filter shell 100 is rotated, then a screwdriver is firstly inserted into the tool slot 751 to rotate the screw head 750, so that the control rod 730 moves inwards, the pawl 720 is separated from the inner ratchet wheel 710 for contact limitation, the fine filter unit 110/the poison filtering unit 120 needing to be disassembled is pulled out, and the fine filter unit 110/the poison filtering unit 120 can be easily disassembled after being pulled out.
When replacing, the fine filter unit 110/canister unit 120 is mounted on the inclined slide plate 622 and the slide plate 612, and then the screw driver is inserted into the tool slot 751 to rotate the screw head 750, so that the control rod 730 moves outward, and the pawl 720 engages with the inner ratchet wheel 710, and at this time, the fine filter unit 110/canister unit 120 is pushed to move inward, and after the top cover 140 is mounted, the filter housing 100 is rotated to reset.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a people's air defense air cleaner, includes filter housing (100) and installs meticulous filter unit (110) and toxin filtering unit (120) in filter housing (100), the both ends of filter housing (100) are provided with entry adapter (200) and export adapter (300) respectively, characterized by: the upper end of the filter shell (100) is provided with a mounting port (130), a top cover (140) is detachably mounted on the mounting port (130), and the fine filtering unit (110) and the toxin filtering unit (120) are inserted and mounted in the filter shell (100) along the opening direction; the inlet adapter (200) and the outlet adapter (300) are connected with the filter shell (100) through a rotating flange (400) in an axial limiting mode and a circumferential rotating mode.
2. The air filter of claim 1, wherein: be provided with snap ring (411), the other end and filter casing (100) fixed connection on the one end inner wall of rotating flange (400), be provided with one on entry adapter (200) and export adapter (300) with snap ring (411) complex ring groove (210).
3. The air filter of claim 2, wherein: the rotating flange (400) comprises a first flange ring (410) and a second flange ring (420), and the first flange ring (410) and the second flange ring (420) are identical in shape and structure and are both semicircular.
4. A personal protective air filter according to claim 2 or 3 wherein: install spring bolt (500) on flange (400), be provided with at least two and spring bolt (500) complex spliced eye (220) on entry adapter (200) and export adapter (300), spliced eye (220) are located entry adapter (200)/the notional limit point of export adapter (300).
5. The air filter of claim 4, wherein: be provided with screw hole (412) on rotating flange (400), spring bolt (500) include adapter sleeve (510) be connected with screw hole (412), insert connecting rod (520) of locating in adapter sleeve (510), establish compression spring (530) on connecting rod (520) and connect spacing plug (540) on connecting rod (520), the both ends of compression spring (530) respectively with spacing plug (540) and adapter sleeve (510) butt, the one end that spacing plug (540) were kept away from in connecting rod (520) is provided with pull ring (521).
6. The air filter of claim 1, wherein: be provided with a plurality of installation slide rail groups (600) that supply fine filtration unit (110) and toxin filtering unit (120) installation respectively in filter casing (100), installation slide rail group (600) are including two installation slide rails (610), installation slide rail (610) include slide (611) and slide plate (612) of installing on slide (611) that slide.
7. The air filter of claim 6, wherein: the end face of the sliding plate (612) is provided with a rubber sheet (613).
8. The air filter for civil air defense of claim 6 or 7, wherein: one of them installation slide rail (610) is slope slide rail (620), slope slide rail (620) include slope slide (621) and the slope board (622) that slides and install on slope slide (621), the cross section of slope slide (621) and slope board (622) is right trapezoid.
9. The air filter of claim 8, wherein: a limiting gear (700) is arranged on a slideway (611) opposite to the inclined slideway (621) in the same mounting slide rail group (600), and a limiting rack (800) meshed with the limiting gear (700) is arranged on the sliding plate (612); an inner ratchet wheel (710) is arranged on the inner side of the limiting gear (700), a pawl (720) matched with the inner ratchet wheel (710) is arranged on the inner side of the limiting gear (700), a control rod (730) capable of being adjusted along the axial direction is connected onto the slide way (611), and the control rod (730) is connected with the pawl (720).
10. The air filter of claim 9, wherein: a threaded mounting hole (6211) is formed in the sliding rail (611), a threaded head (750) is rotatably connected to one end, far away from the pawl (720), of the control rod (730), the threaded head (750) is in threaded connection with the threaded mounting hole (6211), and a tool groove (751) is formed in the end portion of the threaded head (750).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322624.0A CN111482008A (en) | 2020-04-22 | 2020-04-22 | Air filter for civil air defense |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322624.0A CN111482008A (en) | 2020-04-22 | 2020-04-22 | Air filter for civil air defense |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111482008A true CN111482008A (en) | 2020-08-04 |
Family
ID=71789841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010322624.0A Pending CN111482008A (en) | 2020-04-22 | 2020-04-22 | Air filter for civil air defense |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111482008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114733280A (en) * | 2022-04-13 | 2022-07-12 | 衢州元立金属制品有限公司 | Filter additionally arranged on pneumatic ash conveying pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2415395A (en) * | 2004-06-26 | 2005-12-28 | Ind Plastics Ltd | A screen changer |
| CN110026025A (en) * | 2019-04-25 | 2019-07-19 | 菲林埃尔环境设备科技(苏州)有限公司 | A kind of non-inductive windings low resistance high efficiency particulate air filter |
| CN209898071U (en) * | 2019-04-26 | 2020-01-07 | 内蒙古自治区农牧业科学院 | Pesticide spraying device suitable for crop pest and weed test community |
| CN110772896A (en) * | 2019-11-19 | 2020-02-11 | 广西南宁都宁通风防护设备有限公司 | Air filtering absorber |
| CN110953255A (en) * | 2019-11-08 | 2020-04-03 | 安徽莱鑫精密特种钢管有限公司 | Flange connection structure |
| CN210372387U (en) * | 2019-05-07 | 2020-04-21 | 江苏兄弟管业制造有限公司 | Flexible corrugated metal hose |
-
2020
- 2020-04-22 CN CN202010322624.0A patent/CN111482008A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2415395A (en) * | 2004-06-26 | 2005-12-28 | Ind Plastics Ltd | A screen changer |
| CN110026025A (en) * | 2019-04-25 | 2019-07-19 | 菲林埃尔环境设备科技(苏州)有限公司 | A kind of non-inductive windings low resistance high efficiency particulate air filter |
| CN209898071U (en) * | 2019-04-26 | 2020-01-07 | 内蒙古自治区农牧业科学院 | Pesticide spraying device suitable for crop pest and weed test community |
| CN210372387U (en) * | 2019-05-07 | 2020-04-21 | 江苏兄弟管业制造有限公司 | Flexible corrugated metal hose |
| CN110953255A (en) * | 2019-11-08 | 2020-04-03 | 安徽莱鑫精密特种钢管有限公司 | Flange connection structure |
| CN110772896A (en) * | 2019-11-19 | 2020-02-11 | 广西南宁都宁通风防护设备有限公司 | Air filtering absorber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114733280A (en) * | 2022-04-13 | 2022-07-12 | 衢州元立金属制品有限公司 | Filter additionally arranged on pneumatic ash conveying pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11938432B2 (en) | Assemblies; components and filter features thereof; and, methods of use and assembly | |
| CN111482008A (en) | Air filter for civil air defense | |
| CN212409000U (en) | Air humidifying device and air purifying and humidifying equipment | |
| CN116672827A (en) | Spraying dust removing equipment for dust explosion prevention | |
| CN109026848B (en) | Cooling fan convenient for dismounting wind wheel and dismounting and washing method thereof | |
| CN212687640U (en) | Pump assembly for water purifier, mounting seat assembly, supercharging device and water purifier | |
| CN215445134U (en) | Pressure regulating valve with filtering function | |
| CN113085489A (en) | Bus air duct with air opening cleaning structure | |
| CN220368295U (en) | Dust removal assembly of dehumidification device | |
| CN219782441U (en) | Dust cup assembly of mite removing instrument and mite removing instrument | |
| CN217827725U (en) | Waterproof cooling built-in drive rolling brush and cleaning equipment | |
| CN219423876U (en) | Filtering device of heat exchange station | |
| CN211370848U (en) | FFU fan filter unit | |
| CN220151452U (en) | Engine air filter | |
| CN219974657U (en) | Make things convenient for car air cleaner of dismouting | |
| CN220003328U (en) | Filter layer structure of dry filter | |
| CN212457292U (en) | Air purifying and humidifying equipment | |
| CN212409001U (en) | Air purification device and air purification and humidification equipment | |
| CN218530088U (en) | Filter element pressing, assembling and disassembling structure | |
| CN218305670U (en) | Modular medical vacuum unit | |
| CN219186395U (en) | Odor purifying equipment | |
| CN217958757U (en) | Assembled electronic smoke sol filters uses clean subassembly | |
| CN220488350U (en) | Filtering ball valve | |
| CN117212107B (en) | Noise reduction type air filter of air compressor | |
| CN215292940U (en) | Axial flow fan easy to assemble and disassemble |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200804 |