CN217815550U

CN217815550U - Ventilating duct convenient to install and detach

Info

Publication number: CN217815550U
Application number: CN202222168546.0U
Authority: CN
Inventors: 刘成; 肖艳超; 肖艳玲
Original assignee: Shanghai Youhong Decoration Design Engineering Co ltd
Current assignee: Shanghai Youhong Decoration Design Engineering Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-11-15
Anticipated expiration: 2032-08-17

Abstract

The utility model discloses an air pipe convenient to installation is dismantled belongs to the pipeline technical field of taking a breath, the one end of the pipeline of taking a breath is provided with the air inlet flange, another tip fixedly connected with air extractor of air inlet flange is kept away from to the pipeline of taking a breath, thread groove and mouth of pipe external screw thread are threaded connection, the air inlet flange is located fixedly connected with anti-reflux subassembly on the inside lateral wall of the pipeline of taking a breath, two spacing rings of inside fixedly connected with of the pipeline of taking a breath. The utility model discloses not only through the lateral wall that is close to the air inlet flange at the pipeline of taking a breath on the portrayal have mouth of pipe external screw thread, the air inlet flange has been close to the lateral wall of the pipeline of taking a breath and has been seted up the thread groove, has realized that pipeline of taking a breath and air inlet flange pass through thread groove and mouth of pipe external screw thread swivelling joint, has improved this air pipe's detachability, is convenient for to the air inlet flange with air inlet flange fixed connection prevent the comprehensive clearance of flowing back subassembly to make the pipeline keep clean for a long time.

Description

Ventilating duct convenient to install and detach

Technical Field

The utility model relates to a new trend technical field of taking a breath specifically is an air pipe convenient to installation is dismantled.

Background

Laboratory experiments often produce experimental waste, and besides wet and dry waste, gaseous waste which is relatively difficult to collect and control can adversely affect the health of laboratory personnel if not properly disposed of, and toxic and harmful gases often contain invisible substances which often need to be collected and disposed of by a pipeline device with an aspirator.

This type of device on the market is various today, the ventilation system divide into for gas installations and getter device two parts to constitute, for the gas installations be the comparatively simple pipeline structure of structure, the getter device is the combination body of power supply and pipe installation, in order to guarantee the leakproofness of the pipeline of taking a breath, the pipeline uses rigid material usually, fixed connection between the component, this just makes the installation accomplish back pipeline component difficult dismantlement again, the mouth of pipe of the pipeline of breathing in is used a period after very easily by poisonous harmful substance and adheres to and piles up, if not dismantle, accomplish comprehensive clearance hardly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air pipe convenient to installation is dismantled to propose the inconvenient problem of clearing up of plumbing installation in solving above-mentioned background art.

The utility model provides an air conduit convenient for installation and disassembly, which adopts the following technical scheme;

the utility model provides an air pipe convenient to installation is dismantled, includes the pipeline of taking a breath, the one end of the pipeline of taking a breath is provided with the air inlet flange, another tip fixedly connected with air extractor of air inlet flange is kept away from to the pipeline of taking a breath, the pipeline of taking a breath is close to on the lateral wall of air inlet flange the portrayal have mouth of pipe external screw thread, the air inlet flange has seted up the thread groove near the lateral wall of the pipeline of taking a breath, thread groove and mouth of pipe external screw thread are threaded connection, fixedly connected with prevents the refluence subassembly on the inside lateral wall of the pipeline of taking a breath is located to the air inlet flange, two spacing rings of inside fixedly connected with of the pipeline of taking a breath.

Optionally, the inner wall fixedly connected with butt ring of pipeline of taking a breath, butt ring and gas flow direction control piece looks butt, the pipeline of taking a breath is the PVC material with the butt ring, and the PVC material has acid and alkali-resistance and anti deformation's advantage.

Optionally, an active carbon block is arranged between two adjacent limiting rings, the length between the two adjacent limiting rings is consistent with that of the active carbon block, a replacement opening is formed in the position, located on the active carbon block, of the ventilation pipeline, a movable cover matched with the replacement opening is rotatably connected to the position of the replacement opening, and sealing paint is coated on the edges of the movable cover and the replacement opening, so that air outside the pipeline cannot enter the ventilation pipeline through the space between the movable cover and the replacement opening when the movable cover is in a closed state.

Optionally, the anti-backflow assembly comprises a steel wire mesh fixedly connected with the surface of the air inlet flange, the steel wire mesh is fixedly connected with four connecting rods at the edge position far away from one side of the air inlet flange, the connecting rods are annularly distributed on the surface of the steel wire mesh, an included angle between every two adjacent connecting rods is 90 degrees, the steel wire mesh and the connecting rods are made of metal materials, and the surfaces of the steel wire mesh and the connecting rods are polytetrafluoroethylene coatings.

Optionally, the other end of the connecting rod, which is far away from the steel wire mesh, is fixedly connected with a hollowed-out tray, a plurality of air passing holes which are uniformly distributed are formed in the surface of the hollowed-out tray, four inserting holes are formed in the surface of the hollowed-out tray which is located outside the air passing holes, the main body of the hollowed-out tray is made of a metal material, the surface of the hollowed-out tray is a polytetrafluoroethylene coating, and therefore the situation that acidic and alkaline gas meets water in the air to form corrosive turbid liquid to corrode metal is prevented.

Optionally, one side of the hollowed-out tray, which is far away from the connecting rod, is provided with a gas flow direction control piece, the surface of the hollowed-out tray, which is far away from the gas flow direction control piece, is provided with four rubber petals, one side of the gas flow direction control piece, which is attached to the hollowed-out tray, is provided with four fixed hooks, the internal dimension of the insertion hole is matched with the external dimension of the fixed hook, the fixed hook is inserted into the insertion hole, when the insertion hole is inserted into the fixed hook, the gas flow direction control piece with soft texture is limited by the hollowed-out tray to deform, and the middle part of the gas flow direction control piece can only be opened by opening one side of the hollowed-out tray.

Optionally, a plurality of connecting holes with equal intervals are formed in the surface of the air inlet flange, the connecting holes are distributed on the surface of the air inlet flange in an annular mode, and the air inlet flange is made of a PVC material.

Optionally, the movable cover is matched with the size of the replacing opening, the movable cover is far away from the other end fixedly connected with the magnet strip of the rotating joint of the replacing opening, and the position material corresponding to the replacing opening and the magnet strip is a magnetic material.

In summary, the utility model has the following advantages;

1. the outer side wall of the air exchange pipeline, which is close to the air inlet flange, is carved with the pipe orifice external thread, and the side wall of the air inlet flange, which is close to the air exchange pipeline, is provided with the thread groove, so that the air exchange pipeline and the air inlet flange are rotatably connected through the thread groove and the pipe orifice external thread, the detachability of the ventilation pipeline is improved, the comprehensive cleaning of the air inlet flange and the anti-backflow component fixedly connected with the air inlet flange is facilitated, and the pipeline is kept clean for a long time;

2. the splicing holes are formed in the surface of the hollow tray, and the fixed hooks are fixedly connected to the gas flow direction control sheet, so that the hollow tray and the gas flow direction control sheet are spliced with the fixed hooks through the splicing holes, the deformation direction of the rubber membrane flap on the gas flow direction control sheet is limited, the middle part of the gas flow direction control sheet can only be opened by opening the side far away from the hollow tray, the gas in the pipeline is limited from flowing backwards after passing through the gas flow direction control sheet, the gas tightness and safety of the ventilation pipeline are improved, and experimenters are prevented from sucking the backflow waste gas;

3. through having seted up in the pipeline outside and having changed the mouth, the one side of the border position department of changing the mouth is rotated and is connected with the movable cover, has realized that this air pipe's outside casing can open and shut to improved this air pipe's replaceability and maintainability, thereby be convenient for to the periodic replacement or the washing of active carbon piece, guaranteed to the effectual absorption of impurity in the waste gas of inhaling and filtered.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a main view side-sectional structure of the present invention;

FIG. 3 is a schematic view of the main sectional structure of the present invention;

FIG. 4 is an explosion schematic diagram of the anti-backflow assembly of the present invention

Fig. 5 is a schematic view of the local enlarged structure of the gas flow direction control plate of the present invention.

In the figure: 1. a ventilation duct; 2. an air extractor; 3. a limiting ring; 4. an activated carbon block; 5. an anti-reflux assembly; 501. a steel wire mesh sheet; 502. a connecting rod; 503. hollowing out the tray; 504. a gas flow direction control sheet; 505. inserting holes; 506. fixing the hook; 507. air passing holes; 508. a rubber flap; 6. an air inlet flange; 7. connecting holes; 8. a movable cover; 9. replacing the port; 10. a magnet bar; 11. a thread groove; 12. external threads of the pipe orifice; 13. an abutment ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The present invention will be described in further detail with reference to fig. 1 to 5.

The utility model discloses an air pipe convenient to installation is dismantled. Referring to fig. 1-5, a ventilation pipeline convenient to installation is dismantled, including the pipeline of taking a breath 1, the one end of the pipeline of taking a breath 1 is provided with air inlet flange 6, connecting hole 7 that a plurality of interval equals is seted up on the surface of air inlet flange 6, air inlet flange 6 can be fixed with the wall in laboratory through the bolt inside connecting hole 7, when taking a breath 1 and tearing open the maintenance, the bolt inside reverse rotation connecting hole 7, with air inlet flange 6 and wall separation can, connecting hole 7 is the annular distribution on the surface of air inlet flange 6, air inlet flange 6 is the PVC material. Pipeline 1 takes a breath keeps away from another tip fixedly connected with air extractor 2 of air inlet flange 6, and air extractor 2 can the circular telegram work during the use, after 2 circular telegram work of air extractor, can be to the gas outgoing of laboratory inside, changes, and pipeline 1 takes a breath is close to on the lateral wall of air inlet flange 6 the portrayal have mouth of pipe external screw thread 12, and air inlet flange 6 has seted up thread groove 11 near the lateral wall of pipeline 1 takes a breath, and thread groove 11 and mouth of pipe external screw thread 12 are threaded connection.

Referring to fig. 1-5, an anti-backflow component 5 is fixedly connected to a side wall of an air inlet flange 6 inside an air exchange pipeline 1, the anti-backflow component 5 includes a steel wire mesh 501 fixedly connected to a surface of the air inlet flange 6, four connecting rods 502 are fixedly connected to edge positions of one side, away from the air inlet flange 6, of the steel wire mesh 501, the connecting rods 502 are annularly distributed on the surface of the steel wire mesh 501, an included angle between every two adjacent connecting rods 502 is 90 °, the steel wire mesh 501 and the connecting rods 502 are made of metal materials, the surfaces of the steel wire mesh 501 and the connecting rods 502 are made of polytetrafluoroethylene coatings, a hollow tray 503 is fixedly connected to the other end, away from the steel wire mesh 501, of each connecting rod 502, a plurality of air passing holes 507 uniformly distributed are formed in the surface of the hollow tray 503, four inserting holes 505 are formed in the surface of the tray 503 outside the air passing holes 507, the inner body of the hollow tray 503 is made of metal materials, the surface of the hollow tray 503 is made of polytetrafluoroethylene coatings, and corrosion of acidic and basic gas encountering water in the air is prevented from corroding to cause metal corrosion. One side of the hollowed-out tray 503 far away from the connecting rod 502 is provided with a gas flow direction control sheet 504, the surface of the hollowed-out tray 503 far away from the gas flow direction control sheet 504 is provided with four rubber petals 508, one side of the gas flow direction control sheet 504 attached to the hollowed-out tray 503 is provided with four fixed hooks 506, the internal size of the insertion hole 505 is matched with the external size of the fixed hook 506, the fixed hook 506 is inserted into the insertion hole 505, when the insertion hole 505 is inserted into the fixed hook 506, the soft gas flow direction control sheet 504 is limited by the hollowed-out tray 503 to deform, and the middle of the gas flow direction control sheet 504 can only be opened by opening to one side far away from the hollowed-out tray 503.

Two spacing rings 3 of pipeline 1's inside fixedly connected with take a breath, can form a cell body between two spacing rings 3, be provided with activated carbon piece 4 between two adjacent spacing rings 3, the position of activated carbon piece 4 is injectd through the cell body between two spacing rings 3, length between two adjacent spacing rings 3 is unanimous with activated carbon piece 4's length, pipeline 1 of taking a breath is located activated carbon piece 4 position department and has seted up change mouth 9, change mouth 9 position department and rotate the movable cover 8 that is connected with looks adaptation with it, the movable cover 8 all scribbles the leakproofness coating with the edge of changing mouth 9, make the movable cover 8 pipeline outside gas under the closed state can't pass through the movable cover 8 and change in the pipeline 1 between the mouth 9.

Refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, removable cover 8 and the size looks adaptation of changing mouth 9, removable cover 8 is kept away from and is changed the other end fixedly connected with magnet strip 10 that mouth 9 rotated the junction, the position material that changes mouth 9 and magnet strip 10 and correspond is magnetic material, the inner wall fixedly connected with of ventilation pipe 1 supports ring 13, support ring 13 and the looks butt of gas flow direction control piece 504, ventilation pipe 1 is the PVC material with support ring 13, the PVC material has acid and alkali-resistance and anti-deformation's advantage.

The utility model discloses an air pipe convenient to installation is dismantled's implementation principle does:

firstly, when the ventilating duct is used, an external power supply is connected, a ventilating duct 1 is in butt joint with threaded counter bores on the surface of a laboratory wall, then the ventilating duct 1 is fixed with the wall of a laboratory through bolts inside a connecting hole 7, when the ventilating duct 1 is disassembled, replaced and maintained, the bolts inside the connecting hole 7 are rotated reversely, an air inlet flange 6 is separated from the wall, an air flow direction control sheet 504 on one surface provided with a fixed hook 506 is turned to a hollow tray 503, the four fixed hooks 506 are respectively inserted and fixed corresponding to four inserting holes 505, then the air inlet flange 6 is rotated to drive a threaded groove 11, the threaded groove 11 is in threaded connection with an external thread 12 of a pipe orifice, the air flow direction control sheet 504 is in butt joint with a butt joint ring 13, then a movable cover 8 is opened, an active carbon block 4 is installed in a groove formed by two limiting rings 3 at a position of a replacing port 9, then the active carbon block 4 is attracted with a magnet at a position corresponding to the surface of the replacing port 9 through a magnet strip 10, and the movable cover 8 is rotated to be closed.

When the gas filtering device is used, a power supply of the gas pumping machine 2 is turned on to enable the gas pumping machine to work, after the gas pumping machine 2 starts to work, gas is pumped into the gas exchange pipeline 1 from the outside through the steel wire mesh 501, the steel wire mesh 501 can block large impurities doped in the gas and prevent the large impurities from entering the gas exchange pipeline 1 along with gas flow, when the primarily filtered gas reaches the position of the hollow tray 503, the primarily filtered gas penetrates through the through holes 507 formed in the hollow tray 503 to reach the gas flow direction control plate 504, the gas pushes the rubber membrane 508 on the gas flow direction control plate 504 to be opened and passed through under the action of gas pressure difference, when the gas stops flowing or flows reversely, the rubber membrane 508 with elastic property can automatically return to a closed state, due to the limitation of deformation of the hollow tray 503, the gas which passes through the gas flow direction control plate 504 cannot flow reversely through the gas flow direction control plate 504 in the closed state, when the gas reaches the position of the active carbon block 4 through the gas flow direction control plate 504, the loose active carbon block 4 penetrates through the active carbon block 4, the active carbon block 4 to filter the gas to a certain degree, and the filtered gas continues to flow towards the active carbon block 2.

Finally, after the air extractor 2 is used for a period of time, the filtering activity of the activated carbon block 4 is reduced, the activated carbon block 4 can be replaced under the non-operation state of the air extractor 2, the air inlet flange 6 can also be detached through rotation after the air inlet flange is used for a period of time, and the air inlet flange 6 including the anti-backflow assembly 5 fixedly connected with the air inlet flange is cleaned comprehensively.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a ventilation pipe convenient to installation is dismantled, includes air exchange pipe (1), its characterized in that: the one end of pipeline of taking a breath (1) is provided with air inlet flange (6), another tip fixedly connected with air exhauster (2) of air inlet flange (6) are kept away from in pipeline of taking a breath (1), pipeline of taking a breath (1) is close to on the lateral wall of air inlet flange (6) the portrayed mouth of pipe external screw thread (12), thread groove (11) have been seted up to air inlet flange (6) the lateral wall that is close to pipeline of taking a breath (1), thread groove (11) and mouth of pipe external screw thread (12) are threaded connection, fixedly connected with prevents backflow subassembly (5) on air inlet flange (6) are located the inside lateral wall of pipeline of taking a breath (1), two spacing rings (3) of the inside fixedly connected with of pipeline of taking a breath (1).

2. A ventilation duct for facilitating mounting and dismounting according to claim 1, characterized in that: the inner wall of the ventilation pipeline (1) is fixedly connected with a butting ring (13), and the butting ring (13) is butted with the gas flow direction control sheet (504).

3. A ventilation duct facilitating mounting and dismounting according to claim 2, characterized in that: an active carbon block (4) is arranged between two adjacent limiting rings (3), the length between the two adjacent limiting rings (3) is consistent with that of the active carbon block (4), a replacement opening (9) is formed in the position, located on the active carbon block (4), of the ventilation pipeline (1), and a movable cover (8) matched with the replacement opening is rotatably connected to the position of the replacement opening (9).

4. A ventilation duct facilitating mounting and dismounting according to claim 3, characterized in that: prevent that refluence subassembly (5) include with air inlet flange (6) fixed surface be connected's wire net (501) keep away from air inlet flange (6) marginal position department fixedly connected with four connecting rods (502) of one side, connecting rod (502) are at the surperficial cyclic annular distribution of wire net (501), and the contained angle between two adjacent connecting rods (502) is 90.

5. An air duct convenient to mount and dismount according to claim 4, characterized in that: the other end fixedly connected with fretwork tray (503) that wire net piece (501) were kept away from in connecting rod (502), a plurality of air hole (507) of crossing that distributes evenly is seted up on the surface of fretwork tray (503), four spliced eye (505) have been seted up on fretwork tray (503) surface of crossing the air hole (507) outside.

6. An air duct for easy assembly and disassembly according to claim 5, wherein: one side of the hollow tray (503), which is far away from the connecting rod (502), is provided with a gas flow direction control sheet (504), the surface of the hollow tray (503), which is far away from the gas flow direction control sheet (504), is provided with four rubber membrane flaps (508), one side of the hollow tray (503), which is attached to the gas flow direction control sheet (504), is provided with four fixed hooks (506), the inner size of the insertion hole (505) is matched with the outer size of the fixed hooks (506), and the fixed hooks (506) are inserted into the insertion hole (505).

7. An air duct for easy assembly and disassembly according to claim 6, wherein: the surface of the air inlet flange (6) is provided with a plurality of connecting holes (7) with equal intervals, and the connecting holes (7) are distributed on the surface of the air inlet flange (6) in an annular shape.

8. An air duct convenient to mount and dismount according to claim 7, characterized in that: the movable cover (8) is matched with the size of the replacing opening (9), and the other end of the movable cover (8) far away from the rotating connection position of the replacing opening (9) is fixedly connected with a magnet strip (10).