CN112717580A - Air purification device for storage of archive storehouse - Google Patents

Air purification device for storage of archive storehouse Download PDF

Info

Publication number
CN112717580A
CN112717580A CN202011583845.XA CN202011583845A CN112717580A CN 112717580 A CN112717580 A CN 112717580A CN 202011583845 A CN202011583845 A CN 202011583845A CN 112717580 A CN112717580 A CN 112717580A
Authority
CN
China
Prior art keywords
groove
fixedly connected
air purification
spring
purification device
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
Application number
CN202011583845.XA
Other languages
Chinese (zh)
Inventor
王胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011583845.XA priority Critical patent/CN112717580A/en
Publication of CN112717580A publication Critical patent/CN112717580A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002Casings; Housings; Frame constructions
    • B01D46/0005Mounting of filtering elements within casings, housings or frames
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082Grilles, registers or guards

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention provides an air purification device for archival repository storage, and relates to the field of air purification. This air purification device is used in archives storehouse storage, which comprises a bod, the wheel is removed to the bottom fixedly connected with of organism, the fluting has been seted up on the right side of organism, and grooved inside joint has the frame, the inside fixedly connected with filter plate of frame, fixedly connected with montant between the top end inner wall of frame. This air purification device is used in archives storehouse storage, through the montant, the cooperation of thread bush and screw rod, it is as an organic whole to reach to connect between filter plate and the otter board, it is convenient for demolish and install to bring, through the movable groove, first spring, the pull rod, the vaulting pole, the through-hole, the chucking pole, the slider, the cooperation between spring groove and the third spring, it is convenient for fix and dismantle filter plate and otter board to reach, it needs to divide into two steps of operations to have solved current air purification device for archives storehouse storage and carrying out demolising and installing of filter establishment, so that inconvenient filter establishment demolishs and the problem of installation.

Description

Air purification device for storage of archive storehouse
Technical Field
The invention relates to the technical field of air purification, in particular to an air purification device for archival repository storage.
Background
The archives storehouse is a special house for collecting archives, has certain requirements on the aspects of heat prevention, moisture prevention (water prevention), fire prevention, theft prevention and the like, and in order to keep the storehouse sections dry, the storehouse address should not be selected to be close to rivers and lakes, low-lying places and areas with multiple flood and flood, and should not be selected to be at a place with a high underground water level so as to prevent water from suffering from the archives, otherwise, special technical treatment is required. The storage site should not be selected in the industrial area nor in the downwind thereof. The current situation of urban construction and long-term planning are known, so that an industrial area which can not generate gas and dust harmful to files in a certain range around a storage site is ensured. The storage site should be far away from dangerous buildings (such as inflammable and explosive warehouse), and should be kept a certain distance from the ordinary buildings to prevent the spread of fire. In order to provide the utilization files for all the social circles, the library address should be selected in a place where the traffic is convenient, and generally should not be selected in suburbs or mountainous areas far away from cities. The space is reserved around the storage site so as to be convenient for extension, the air purification device is required to be used for air purification due to the fact that the file storage room is closed and has turbid air, and the existing air purification device for file storage room storage needs to be divided into two steps of operation when the filter mechanism is dismounted and mounted, so that the filter mechanism is inconvenient to dismount and mount.
Disclosure of Invention
The invention aims to provide an air purification device for archival repository storage, which solves the problem that the conventional air purification device for archival repository storage is inconvenient to detach and install a filtering mechanism because the detachment and installation of the filtering mechanism are required to be divided into two steps.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an air purification device for archival repository storage comprises a machine body, wherein the bottom of the machine body is fixedly connected with a moving wheel, the right side of the machine body is provided with a groove, the inside of the groove is connected with an outer frame, the inside of the outer frame is fixedly connected with a filter plate, a vertical rod is fixedly connected between the top inner wall and the bottom inner wall of the outer frame, the inside of the groove is connected with a screen plate, the left side of the screen plate is fixedly connected with a threaded sleeve, the inner wall of the threaded sleeve is in threaded connection with a screw rod, the left end of the screw rod is fixedly connected with the right side of the vertical rod, the right side of the machine body is provided with a movable groove, the inside of the movable groove is movably connected with a pull rod, the left end of the pull rod is fixedly connected with a first spring, the left end of the first spring is fixedly connected with the left inner wall of the movable groove, the inside swing joint of through-hole has the chucking pole, the top of chucking pole and the bottom overlap joint of otter board, the bottom inclined plane of chucking pole and the top overlap joint of vaulting pole.
The mounting groove has been seted up at the top of organism, the inner wall fixedly connected with tray of mounting groove, the upper surface overlap joint of tray has the air-out grid, the groove has been seted up to the left side inner wall of mounting groove, the inner wall fixedly connected with fixed axle of accomodating the groove, the movable roller has been cup jointed on the surface of fixed axle, the lower fixed surface of movable roller is connected with the sealing strip, the trompil that is linked together with the mounting groove is seted up on the right side of organism, the inside swing joint of trompil has the movable block, the sealing strip is kept away from the one end of movable roller and the left side fixed connection of.
Furthermore, flexible groove has been seted up to grooved inner diapire, flexible groove's inner diapire fixedly connected with second spring, the top fixedly connected with reinforcement piece of second spring, the draw-in groove has been seted up to the bottom of frame, the surface of reinforcement piece and the inside joint of draw-in groove.
Furthermore, a spring groove is formed in the inner wall of the right side of the through hole, and a sliding block is movably connected inside the spring groove.
Furthermore, the left side of slider and the right side fixed connection of chucking pole, the lower fixed surface of slider is connected with the third spring, the bottom of third spring and the interior diapire fixed connection in spring groove.
Furthermore, a lifting groove is formed in the right side of the machine body.
Furthermore, the lower surface of the air outlet grid is provided with a positioning groove, a positioning block is clamped inside the positioning groove, and the lower surface of the positioning block is fixedly connected with the upper surface of the supporting block.
Furthermore, a handle is fixedly connected to the right side of the screen plate.
Further, the movable hole that is linked together with the right side is seted up in the left side of movable block, the inside swing joint in movable hole has the bull stick, the left end fixedly connected with stopper of bull stick, the right-hand member fixedly connected with kelly of bull stick, the left side of kelly and the right side overlap joint of organism.
The invention provides an air purification device for archival repository storage. The method has the following beneficial effects:
1. this air purification device is used in archives storehouse storage, through the montant, the cooperation of thread bush and screw rod, it is as an organic whole to reach to connect between filter plate and the otter board, it is convenient for demolish and install to bring, through the movable groove, first spring, the pull rod, the vaulting pole, the through-hole, the chucking pole, the slider, the cooperation between spring groove and the third spring, it is convenient for fix and dismantle filter plate and otter board to reach, it needs to divide into two steps of operations to have solved current air purification device for archives storehouse storage and carrying out demolising and installing of filter establishment, so that inconvenient filter establishment demolishs and the problem of installation.
2. This air purification device is used in archival repository storage, through flexible groove, the second spring, add the cooperation between piece and the draw-in groove, reach and consolidate to the filter plate, avoid the filter plate not hard up influence filter effect, through accomodating the groove, the sealing strip, the movable roll, the fixed axle, the trompil, the movable block, the movable hole, the stopper, mutually support between kelly and the bull stick, reach and to seal the purifier top that does not use for a long time, avoid the dust to get into inside the purifier through the air-out grid.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 1 at D according to the present invention.
The air conditioner comprises a machine body 1, a moving wheel 2, a groove 3, a lifting groove 4, an outer frame 5, a filter plate 6, a vertical rod 7, a screen plate 8, an air outlet grid 9, a mounting groove 10, a handle 11, a movable groove 12, a first spring 13, a pull rod 14, a support rod 15, a through hole 16, a clamping rod 17, a telescopic groove 18, a second spring 19, a reinforcing block 20, a clamping groove 21, a sliding block 22, a spring groove 23, a third spring 24, a threaded sleeve 25, a screw rod 26, a supporting block 27, a positioning block 28, a positioning groove 29, a storage groove 30, a sealing belt 31, a movable roller 32, a fixed shaft 33, an opening 34, a movable block 35, a movable hole 36, a limiting block 37, a clamping rod 38 and a rotating rod 39.
Detailed Description
As shown in fig. 1 to 5, an embodiment of the present invention provides an air purification device for archival storage, including a machine body 1, a lifting groove 4 is formed on a right side of the machine body 1, a moving wheel 2 is fixedly connected to a bottom of the machine body 1, a slot 3 is formed on the right side of the machine body 1, an outer frame 5 is clamped inside the slot 3, a telescopic groove 18 is formed on an inner bottom wall of the slot 3, a second spring 19 is fixedly connected to the inner bottom wall of the telescopic groove 18, a reinforcing block 20 is fixedly connected to a top end of the second spring 19, a clamping groove 21 is formed at a bottom of the outer frame 5, a surface of the reinforcing block 20 is clamped inside the clamping groove 21, a filter plate 6 is fixedly connected inside the outer frame 5, a vertical rod 7 is fixedly connected between inner top and bottom walls of the outer frame 5, a mesh plate 8 is clamped inside the slot 3, a handle 11 is fixedly connected to a right side of the mesh plate 8, a, the left end of the screw 26 is fixedly connected with the right side of the vertical rod 7, when the filter plate 6 and the screen plate 8 are detached from the inside of the slot 3, the filter plate 6 can be rotated, so that the filter plate 6 drives the screw 26 to be separated from the inside of the thread bush 25, the filter plate 6 is detached from the screen plate 8, and the filter plate 6 is convenient to clean, the right side of the machine body 1 is provided with a movable groove 12, the inside of the movable groove 12 is movably connected with a pull rod 14, the left end of the pull rod 14 is fixedly connected with a first spring 13, the left end of the first spring 13 is fixedly connected with the left inner wall of the movable groove 12, the upper surface of the pull rod 14 is fixedly connected with a support rod 15, the inner bottom wall of the slot 3 is provided with a through hole 16 communicated with the inside of the movable groove 12, the inside of the through hole 16 is movably connected with a clamping rod 17, the right inner wall of the through hole 16 is provided with a, the lower surface of the sliding block 22 is fixedly connected with a third spring 24, the bottom end of the third spring 24 is fixedly connected with the inner bottom wall of the spring groove 23, the top end of the clamping rod 17 is lapped with the bottom of the screen plate 8, and the bottom end inclined plane of the clamping rod 17 is lapped with the top end of the support rod 15.
The top of the machine body 1 is provided with a mounting groove 10, the inner wall of the mounting groove 10 is fixedly connected with a supporting block 27, the upper surface of the supporting block 27 is lapped with an air outlet grid 9, the lower surface of the air outlet grid 9 is provided with a positioning groove 29, the inside of the positioning groove 29 is clamped with a positioning block 28, the lower surface of the positioning block 28 is fixedly connected with the upper surface of the supporting block 27, the left inner wall of the mounting groove 10 is provided with a containing groove 30, the inner wall of the containing groove 30 is fixedly connected with a fixed shaft 33, the surface of the fixed shaft 33 is sleeved with a movable roller 32, the lower surface of the movable roller 32 is fixedly connected with a sealing belt 31, the right side of the machine body 1 is provided with an opening 34 communicated with the inside of the mounting groove 10, the inside of the opening 34 is movably connected with a movable block 35, one end of the sealing belt 31 far away from the movable roller 32, the left end fixedly connected with stopper 37 of bull stick 39, the right-hand member fixedly connected with kelly 38 of bull stick 39, the left side of kelly 38 and the right side overlap joint of organism 1.
The working principle is as follows: when the filter plate 6 is disassembled, the pull rod 14 is pulled rightwards, so that the pull rod 14 drives the support rod 15 to separate from the bottom end of the clamping rod 17, at the moment, the third spring 24 contracts to drive the slide block 22 to move downwards, the slide block 22 moves downwards to drive the clamping rod 17 to move downwards and separate from the bottom of the screen plate 8, then the handle 11 is grasped to pull rightwards, so that the outer frame 5 and the filter plate 6 can be driven to separate from the inside of the slot 3, the reinforcing block 20 can be extruded downwards in the outward movement process of the outer frame 5, so that the reinforcing block 20 enters the inside of the telescopic slot 18, when the filter plate 6 is assembled, the outer frame 5 is plugged into the inside of the slot 3 and pushed leftwards, so that the reinforcing block 20 is extruded when the outer frame 5 meets the reinforcing block 20, and as the outer frame 5 is continuously pushed leftwards, when the reinforcing block 20 corresponds to the slot 21, the second spring 19 can release the elasticity to push the, then the pull rod 14 is released, so that the first spring 13 contracts to drive the pull rod 14 to move leftwards, the pull rod 14 drives the support rod 15 to move leftwards, the pull rod 14 jacks the clamping rod 17 upwards in the leftward movement process, and the clamping rod 17 abuts against the bottom of the screen plate 8; when not needing to use this purifier for a long time, stimulate movable block 35 right for drive movable roll 32 winding on surface's sealing band 31 and expand, fill in trompil 34 with movable block 35 inside, and stretch into from the right side of trompil 34 with the hand and continue the right pulling with movable block 35, make kelly 38 be located the outside of trompil 34, later with kelly 38 rotation, make the left side of kelly 38 and organism 1's right side contact can.

Claims (8)

1. The utility model provides an air purification device is used in storage of file storehouse, includes organism (1), its characterized in that: the bottom fixedly connected with of organism (1) removes wheel (2), fluting (3) has been seted up on the right side of organism (1), the inside joint of fluting (3) has frame (5), the inside fixedly connected with filter plate (6) of frame (5), fixedly connected with montant (7) between the top end inner wall of frame (5), the inside joint of fluting (3) has otter board (8), the left side fixedly connected with thread bush (25) of otter board (8), the inner wall threaded connection of thread bush (25) has screw rod (26), the left end of screw rod (26) and the right side fixed connection of montant (7), movable groove (12) has been seted up on the right side of organism (1), the inside swing joint of movable groove (12) has pull rod (14), the left end fixed connection of pull rod (14) has first spring (13), the left end of the first spring (13) is fixedly connected with the inner wall of the left side of the movable groove (12), the upper surface of the pull rod (14) is fixedly connected with a support rod (15), the inner bottom wall of the open groove (3) is provided with a through hole (16) communicated with the inside of the movable groove (12), the inside of the through hole (16) is movably connected with a clamping rod (17), the top end of the clamping rod (17) is lapped with the bottom of the screen plate (8), and the bottom end inclined plane of the clamping rod (17) is lapped with the top end of the support rod (15);
mounting groove (10) have been seted up at the top of organism (1), inner wall fixedly connected with tray (27) of mounting groove (10), the upper surface overlap joint of tray (27) has air-out grid (9), the left side inner wall of mounting groove (10) has been seted up and has been accomodate groove (30), accomodate inner wall fixedly connected with fixed axle (33) of groove (30), movable roller (32) have been cup jointed on the surface of fixed axle (33), the lower fixed surface of movable roller (32) is connected with sealing strip (31), trompil (34) that are linked together with mounting groove (10) inside are seted up on the right side of organism (1), the inside swing joint of trompil (34) has movable block (35), the one end of movable roller (32) and the left side fixed connection of movable block (35) are kept away from in sealing strip (31).
2. The air purification device for archival storage according to claim 1, characterized in that: flexible groove (18) have been seted up to the inner bottom wall of fluting (3), inner bottom wall fixedly connected with second spring (19) in flexible groove (18), the top fixedly connected with reinforcement piece (20) of second spring (19), draw-in groove (21) have been seted up to the bottom of frame (5), the surface of reinforcement piece (20) and the inside joint of draw-in groove (21).
3. The air purification device for archival storage according to claim 1, characterized in that: the right inner wall of the through hole (16) is provided with a spring groove (23), and the inside of the spring groove (23) is movably connected with a sliding block (22).
4. The air purification device for archival storage according to claim 3, characterized in that: the left side of slider (22) and the right side fixed connection of chucking pole (17), the lower surface fixed connection of slider (22) has third spring (24), the bottom of third spring (24) and the interior diapire fixed connection of spring groove (23).
5. The air purification device for archival storage according to claim 1, characterized in that: the right side of the machine body (1) is provided with a lifting groove (4).
6. The air purification device for archival storage according to claim 1, characterized in that: locating slot (29) has been seted up to the lower surface of air-out grid (9), locating block (28) have been blocked to the inside joint of locating slot (29), the lower surface of locating block (28) is connected with the upper surface fixed of tray (27).
7. The air purification device for archival storage according to claim 1, characterized in that: the right side of the mesh plate (8) is fixedly connected with a handle (11).
8. The air purification device for archival storage according to claim 1, characterized in that: the left side of movable block (35) is seted up movable hole (36) that are linked together with the right side, the inside swing joint of movable hole (36) has bull stick (39), the left end fixedly connected with stopper (37) of bull stick (39), the right-hand member fixedly connected with kelly (38) of bull stick (39), the left side of kelly (38) and the right side overlap joint of organism (1).
CN202011583845.XA 2020-12-28 2020-12-28 Air purification device for storage of archive storehouse Pending CN112717580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011583845.XA CN112717580A (en) 2020-12-28 2020-12-28 Air purification device for storage of archive storehouse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011583845.XA CN112717580A (en) 2020-12-28 2020-12-28 Air purification device for storage of archive storehouse

Publications (1)

Publication Number Publication Date
CN112717580A true CN112717580A (en) 2021-04-30

Family

ID=75606716

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011583845.XA Pending CN112717580A (en) 2020-12-28 2020-12-28 Air purification device for storage of archive storehouse

Country Status (1)

Country Link
CN (1) CN112717580A (en)

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730074A (en) * 1971-02-16 1973-05-01 Specialties Const Grille
DE7808008U1 (en) * 1977-03-18 1978-07-06 Luwa Ag, Zuerich (Schweiz) AIR OUTLET FOR CLEAN ROOMS
JP2000356391A (en) * 1999-06-17 2000-12-26 Shinryo Corp Face detachable air control port
JP2008196714A (en) * 2007-02-08 2008-08-28 Nitto Electric Works Ltd Louver for electric/electronic device storage box
CN107830601A (en) * 2017-10-20 2018-03-23 临沂市季刚农业科技有限公司 A kind of air cleaning unit for indoor window ventilating opening
CN207980707U (en) * 2018-01-18 2018-10-19 连云港脱普仪表有限公司 A kind of factory's anti-clogging air-borne dust filter device
CN108854410A (en) * 2018-08-22 2018-11-23 武汉新国峰科技开发有限公司 A kind of machine for stir-frying Chinese medicine mist of oil emission-control equipment
CN108958419A (en) * 2018-09-27 2018-12-07 汤雪银 A kind of cabinet of desktop computer
CN109432900A (en) * 2018-10-21 2019-03-08 杭州棵林科技有限公司 Air purifier
CN208858271U (en) * 2019-02-19 2019-05-14 张振纬 A kind of air purifying windows
CN110805974A (en) * 2019-11-04 2020-02-18 朱才武 Conveniently change for kitchen use air purification device of filter core
CN210613122U (en) * 2019-06-05 2020-05-26 南京同昌环保科技有限公司 Dismounting device of active carbon filter core
CN210781930U (en) * 2019-11-27 2020-06-16 于治国 Dustproof ventilation filter equipment for industrial electrical cabinet
CN211358070U (en) * 2019-07-17 2020-08-28 庄小芳 Air purification device convenient to dismantle filter plate
CN212071618U (en) * 2020-04-09 2020-12-04 铁岭东升汽车零部件有限公司 Surface impurity removing device for automobile part machining
CN212166835U (en) * 2020-05-09 2020-12-18 无锡市永会厨房设备制造有限公司 High-efficient fume purifier

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730074A (en) * 1971-02-16 1973-05-01 Specialties Const Grille
DE7808008U1 (en) * 1977-03-18 1978-07-06 Luwa Ag, Zuerich (Schweiz) AIR OUTLET FOR CLEAN ROOMS
JP2000356391A (en) * 1999-06-17 2000-12-26 Shinryo Corp Face detachable air control port
JP2008196714A (en) * 2007-02-08 2008-08-28 Nitto Electric Works Ltd Louver for electric/electronic device storage box
CN107830601A (en) * 2017-10-20 2018-03-23 临沂市季刚农业科技有限公司 A kind of air cleaning unit for indoor window ventilating opening
CN207980707U (en) * 2018-01-18 2018-10-19 连云港脱普仪表有限公司 A kind of factory's anti-clogging air-borne dust filter device
CN108854410A (en) * 2018-08-22 2018-11-23 武汉新国峰科技开发有限公司 A kind of machine for stir-frying Chinese medicine mist of oil emission-control equipment
CN108958419A (en) * 2018-09-27 2018-12-07 汤雪银 A kind of cabinet of desktop computer
CN109432900A (en) * 2018-10-21 2019-03-08 杭州棵林科技有限公司 Air purifier
CN208858271U (en) * 2019-02-19 2019-05-14 张振纬 A kind of air purifying windows
CN210613122U (en) * 2019-06-05 2020-05-26 南京同昌环保科技有限公司 Dismounting device of active carbon filter core
CN211358070U (en) * 2019-07-17 2020-08-28 庄小芳 Air purification device convenient to dismantle filter plate
CN110805974A (en) * 2019-11-04 2020-02-18 朱才武 Conveniently change for kitchen use air purification device of filter core
CN210781930U (en) * 2019-11-27 2020-06-16 于治国 Dustproof ventilation filter equipment for industrial electrical cabinet
CN212071618U (en) * 2020-04-09 2020-12-04 铁岭东升汽车零部件有限公司 Surface impurity removing device for automobile part machining
CN212166835U (en) * 2020-05-09 2020-12-18 无锡市永会厨房设备制造有限公司 High-efficient fume purifier

Similar Documents

Publication Publication Date Title
CN208462489U (en) A kind of green balcony planting equipment
CN210033223U (en) Intelligent household electric curtain
CN112717580A (en) Air purification device for storage of archive storehouse
CN109994935B (en) Dehumidification dust keeper that outdoor switch board was used
CN210229468U (en) Ventilation and dust removal device for tunnel construction
CN112999730B (en) Energy-efficient concatenation formula filter core
CN214437637U (en) Air pollution control device for tunnel construction
CN105317075A (en) Rainwater collection device
CN212159796U (en) A moisture separator for soil detection
CN219815767U (en) Deodorization device
CN204080918U (en) Rain collector
CN207970546U (en) A kind of rain water collecting system water pollution filter device
CN115573290B (en) Water accumulation removing environment-friendly device for building construction
CN218881044U (en) Energy-saving building rainwater recovery system
CN219469735U (en) Domestic sewage multistage treatment equipment
CN216088117U (en) Energy-conserving irrigation equipment is used to hydraulic engineering
CN220243075U (en) Pick-up formula flood prevention drainage car
CN220598871U (en) Operating room laminar flow ceiling capable of rapidly disassembling filter screen
CN220510871U (en) Air discharge motor with filtering structure
CN220127132U (en) Novel directional collection cover
CN220572777U (en) Water supply and drainage filtering structure for town sewage
CN216362991U (en) Novel environmental protection water conservancy water-saving irrigation device
CN220985157U (en) Protective device
CN218233643U (en) A rainwater collection device for in landscape garden
CN220978605U (en) House building roof structure

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

Application publication date: 20210430

RJ01 Rejection of invention patent application after publication