CN215675722U

CN215675722U - Ventilation and smoke exhaust pipeline

Info

Publication number: CN215675722U
Application number: CN202122265908.3U
Authority: CN
Inventors: 吴科
Original assignee: Naidao Guangdong Fireproof Material Co ltd
Current assignee: Naidao Guangdong Fireproof Material Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-01-28
Anticipated expiration: 2031-09-18

Abstract

The utility model belongs to the technical field of smoke exhaust pipelines, and particularly relates to a ventilation smoke exhaust pipeline which aims at solving the problems that the existing pipeline is not provided with any dustproof measure, so that a large amount of dust is accumulated in the pipeline, the service life of the pipeline is influenced, and meanwhile, the dust is too dispersed and is inconvenient to clean. The dust collecting device is simple in structure and convenient to use, dust can be intensively cleaned, the dust is prevented from being dispersed in a plurality of branch pipelines, the cleaning difficulty is reduced, and the service life of the branch pipelines is prolonged.

Description

Ventilation and smoke exhaust pipeline

Technical Field

The utility model relates to the technical field of smoke exhaust pipelines, in particular to a ventilation smoke exhaust pipeline.

Background

The smoke exhaust pipeline is mainly used for fire control ventilation and smoke exhaust, and the traditional technical points have the disadvantages that: only one layer of iron sheet with the thickness of more than 0.8mm is arranged, and a heat-insulating layer is additionally arranged outside the iron sheet, thus having the disadvantages that: the combined weight of the iron sheet and the heat-insulating material is heavier, the thickness reaches 5-15 cm, the suspended ceiling is installed, the space occupation is larger, the construction difficulty is increased, and the working hours of workers are increased, because the structure is not an integrally formed structure, the structure is easy to damage and wear, the phenomenon of water absorption and collapse can occur after water passing, in the aspect of fire prevention, the heat-insulating layer coated outside the iron sheet pipe is usually made of glass fiber with the temperature resistance of 300 ℃ and rock wool with the temperature resistance of 700 ℃, the fire resistance and the fire resistance of the coating mode or the composite mode can not reach the national A-level fire-proof standard, the thickness requirement of the previously made iron sheet pipe can play a supporting role without deformation when reaching more than 0.8mm, the installation space and the weight are increased, and the construction difficulty is large.

The existing pipeline is not provided with any dustproof measures, so that a large amount of dust is accumulated in the pipeline, and the service life of the pipeline is influenced.

Disclosure of Invention

The utility model aims to solve the defects that the service life of a pipeline is influenced due to the fact that a large amount of dust is accumulated in the pipeline because the existing pipeline is not provided with any dustproof measure, and meanwhile, the dust is too dispersed and is inconvenient to clean.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a ventilation and smoke exhaust pipeline, including a plurality of lateral conduits, the both ends of a plurality of lateral conduits all are provided with flange joint, be connected with a plurality of bolts between two flange joints that are close to each other, be provided with the various steel of single face on the inner wall of lateral conduit, the mounting hole has been seted up in the outside of a lateral conduit among a plurality of lateral conduits, install the filter screen in the mounting hole, the outside cover of filter screen is equipped with the sealing washer, sealing washer and mounting hole sealing connection, the connecting strip is installed in the outside of filter screen, the cavity has been seted up on the connecting strip, two elasticity fixed establishment are installed to the symmetry in the cavity, be provided with manually-operated mechanism on the connecting strip, two elasticity fixed establishment all link to each other with manually-operated mechanism, four inserted bars are installed in the outside of lateral conduit, four slots have been seted up to the inboard of connecting strip, inserted bar and slot looks adaptation.

Preferably, elasticity fixed establishment includes sliding strip, spring and hypotenuse pole, and sliding strip slidable mounting is in the cavity, and the one end of spring links to each other with the sliding strip, and the other end of spring links to each other with the inner wall of cavity, and the hypotenuse pole is installed in the outside of sliding strip, has all seted up two intercommunicating pores on the both sides inner wall of cavity, and the intercommunicating pore is linked together with the slot that corresponds, and hypotenuse pole and the intercommunicating pore sliding connection that corresponds, the hypotenuse groove has been seted up to the inboard of inserted bar, the one-way joint in hypotenuse groove that hypotenuse pole and correspond.

Preferably, the manual mechanism comprises a manual rod, a winding wheel and two pull ropes, the manual rod is rotatably mounted on the inner wall of the cavity, the winding wheel is sleeved on the outer side of the manual rod, one end of each pull rope is connected with the winding wheel, the other end of each pull rope is connected with the sliding strip, and the outer end of the manual rod extends to the outer side of the cavity and is fixedly provided with a torsion handle.

Preferably, the bottom of one of the branch pipes is communicated with a dust exhaust pipe.

Compared with the prior art, the utility model has the advantages that:

according to the scheme, the filter screen can be used for filtering smoke dust, the filter screen is made of high-temperature-resistant metal net materials, the filtered smoke dust is discharged through the branch pipelines, dust is blocked and accumulated by the filter screen, and the dust can be cleaned through the dust exhaust pipe, so that the dust is prevented from being scattered and accumulated in the branch pipelines;

according to the scheme, the fixing of the connecting strip can be released by rotating the twisting handle and pulling outwards, the filter screen can be taken out for cleaning, and the filter screen can be used after being mounted again after being cleaned, so that the filter screen is convenient to disassemble and clean;

the dust collecting device is simple in structure and convenient to use, dust can be intensively cleaned, the dust is prevented from being dispersed in a plurality of branch pipelines, the cleaning difficulty is reduced, and the service life of the branch pipelines is prolonged.

Drawings

FIG. 1 is a schematic structural view of a ventilation and smoke exhaust duct according to the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a of fig. 2.

In the figure: 1. a branch pipe; 2. a flange joint; 3. a bolt; 4. single-sided color steel; 5. a connecting strip; 6. twisting a handle; 7. a filter screen; 8. a U-shaped limiting strip; 9. mounting holes; 10. a seal ring; 11. a slot; 12. inserting a rod; 13. a bevel groove; 14. a sloping pole; 15. a cavity; 16. a manual lever; 17. a winding wheel; 18. pulling a rope; 19. a slide bar; 20. a spring; 21. a communicating hole; 22. a dust exhaust pipe.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Example one

Referring to fig. 1-3, a ventilation and smoke exhaust pipeline comprises a plurality of branch pipes 1, wherein flange joints 2 are arranged at two ends of each branch pipe 1, a plurality of bolts 3 are connected between two flange joints 2 which are close to each other, single-sided color steel 4 is arranged on the inner wall of each branch pipe 1, a mounting hole 9 is arranged on the outer side of one branch pipe 1 in each branch pipe 1, a filter screen 7 is arranged in the mounting hole 9, a sealing ring 10 is sleeved on the outer side of the filter screen 7, the sealing ring 10 is hermetically connected with the mounting hole 9, a connecting strip 5 is arranged on the outer side of the filter screen 7, a cavity 15 is arranged on the connecting strip 5, two elastic fixing mechanisms are symmetrically arranged in the cavity 15, a manual mechanism is arranged on the connecting strip 5, the two elastic fixing mechanisms are both connected with the manual mechanism, four inserting rods 12 are arranged on the outer side of each branch pipe 1, and four slots 11 are arranged on the inner side of the connecting strip 5, the insertion rod 12 is matched with the slot 11.

In this embodiment, elasticity fixed establishment includes slide bar 19, spring 20 and hypotenuse pole 14, slide bar 19 slidable mounting is in cavity 15, spring 20's one end links to each other with slide bar 19, spring 20's the other end links to each other with cavity 15's inner wall, the outside at slide bar 19 is installed to hypotenuse pole 14, two intercommunicating pores 21 have all been seted up on cavity 15's the both sides inner wall, intercommunicating pore 21 is linked together with the slot 11 that corresponds, hypotenuse pole 14 and the intercommunicating pore 21 sliding connection that corresponds, hypotenuse groove 13 has been seted up to the inboard of inserted bar 12, hypotenuse pole 14 and the one-way joint in hypotenuse groove 13 that corresponds, elasticity fixed establishment is used for fixing connecting strip 5.

In this embodiment, the manual mechanism includes a manual lever 16, two winding wheels 17 and a pull rope 18, the manual lever 16 is rotatably installed on the inner wall of the cavity 15, the winding wheels 17 are sleeved on the outer side of the manual lever 16, the two pull ropes 18 are provided, one end of the pull rope 18 is connected with the winding wheels 17, the other end of the pull rope 18 is connected with a sliding bar 19, the outer end of the manual lever 16 extends to the outer side of the cavity 15 and is fixedly provided with a twisting handle 6, and the manual mechanism is used for controlling the elastic mechanism.

In the present embodiment, a dust exhaust pipe 22 is connected to the bottom of one of the plurality of branch pipes 1, and the dust exhaust pipe 22 is provided to exhaust the blocked dust.

In the embodiment, the plurality of branch pipes 1 are spliced through the flange joints 2 and the bolts 3, then the installation is carried out, when the ventilation and the smoke exhaust are carried out, the arranged filter screen 7 can filter the smoke dust, the filtered smoke dust is discharged through the plurality of branch pipes 1, the dust is blocked and accumulated by the filter screen 7, the dust exhaust pipe 22 can be cleaned, when the filter screen 7 needs to be cleaned, the twisting handle 6 is rotated and pulled outwards, the twisting handle 6 is rotated to drive the manual rod 16 to rotate, the manual rod 16 is wound through the winding wheel 17 to two pull ropes 18, the two pull ropes 18 drive the two sliding strips 19 to mutually approach, the sliding strips 19 drive the corresponding two bevel rods 14 to leave the two bevel grooves 13, the fixation of the connecting strips 5 can be released, the twisting handle 6 is pulled to drive the filter screen 7 to leave the branch pipes 1 through the connecting strips 5, the filter screen 7 can be taken out for cleaning, and after the cleaning is finished, when the filter screen is remounted, the inclined edge rods 14 enter the corresponding inclined edge grooves 13 under the action of the elastic force of the springs 20, so that the filter screen 7 can be fixed.

Example two

In this embodiment, the inner wall of lateral conduit 1 is installed the spacing strip 8 of U type, filter screen 7 and the spacing strip 8 swing joint of U type, and the spacing strip 8 of U type of setting can be spacing to stop filter screen 7.

In the embodiment, the fireproof heat-insulating plate with double-sided or single-sided composite metal plate surface for the ventilation and smoke exhaust pipeline is adopted, the fireproof heat-insulating plate is folded by cutting a V groove to form a 45-degree angle, then screws are sleeved on a metal plate flange, the fireproof heat-insulating plate can be spliced horizontally and vertically at various angles, the temperature resistance can reach more than 1000 ℃, the installation is convenient and quick, and in various forms of air pipe layout, the composite plate is light in weight and cannot deform because the fireproof heat-insulating plate is of an integrated structure, the outer layer is coated with metal, a 45-degree angle seam is coated with fireproof sealant, the integrity and the ventilation sealing performance are ensured, the fireproof heat-insulating plate with the interlayer of the iron sheet or the inner core of the iron sheet plays a heat insulating role because the iron sheet and the fireproof heat-insulating plate are attached together, the minimum thickness of the iron sheet is 0.2mm, the angle of raw materials is greatly saved, the installation cost is saved by 3, the building bearing is reduced by 3, and the wall thickness of the air pipe of the materials is reduced by more than half, the occupation ratio of the installation space is greatly reduced, and the occupation of the external space can be reduced by more than 50% under the condition that the internal space is unchanged.

The difference between the second embodiment and the first embodiment is that: installation metal flange coats fire retardant coating, fire-resistant limit with the tuber pipe, the compound pipe of screw fixed mounting integral type fire prevention, carrying out furred ceiling concatenation installation, the spacing 8 of U type that sets up can support filter screen 7 with spacing, guarantees filter screen 7's stability, all structures in this application all can carry out the selection of material and length according to the in-service use condition, the drawing is the schematic structure picture, and proper adjustment can be made to concrete actual dimensions.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. A ventilation and smoke exhaust pipeline comprises a plurality of branch pipelines (1), wherein flange joints (2) are arranged at two ends of each branch pipeline (1), a plurality of bolts (3) are connected between two flange joints (2) which are close to each other, the ventilation and smoke exhaust pipeline is characterized in that single-sided color steel (4) is arranged on the inner wall of each branch pipeline (1), a mounting hole (9) is formed in the outer side of one branch pipeline (1) of the branch pipelines (1), a filter screen (7) is installed in the mounting hole (9), a sealing ring (10) is sleeved on the outer side of the filter screen (7), the sealing ring (10) is in sealing connection with the mounting hole (9), a connecting strip (5) is installed on the outer side of the filter screen (7), a cavity (15) is formed in the connecting strip (5), two elastic fixing mechanisms are symmetrically installed in the cavity (15), and a manual mechanism is arranged on the connecting strip (5), two elasticity fixed establishment all link to each other with manual mechanism, and four inserted bars (12) are installed in the outside of lateral conduit (1), and four slots (11) have been seted up to the inboard of connecting strip (5), and inserted bar (12) and slot (11) looks adaptation.

2. A ventilation and smoke exhaust duct according to claim 1, wherein said elastic fixing means comprises a sliding bar (19), a spring (20) and a sloping bar (14), said sliding bar (19) is slidably mounted in said cavity (15), one end of said spring (20) is connected to said sliding bar (19), the other end of said spring (20) is connected to the inner wall of said cavity (15), and said sloping bar (14) is mounted on the outer side of said sliding bar (19).

3. A ventilation and smoke exhaust pipeline according to claim 2, wherein two communication holes (21) are formed in the inner walls of the two sides of the cavity (15), the communication holes (21) are communicated with the corresponding insertion grooves (11), the oblique side rods (14) are slidably connected with the corresponding communication holes (21), the oblique side grooves (13) are formed in the inner sides of the insertion rods (12), and the oblique side rods (14) are in one-way clamping connection with the corresponding oblique side grooves (13).

4. A ventilation and smoke exhaust duct according to claim 2, wherein said manual mechanism comprises a manual lever (16), a winding wheel (17) and two pulling ropes (18), said manual lever (16) is rotatably mounted on the inner wall of said cavity (15), said winding wheel (17) is sleeved on the outer side of said manual lever (16), one end of said pulling rope (18) is connected with said winding wheel (17), and the other end of said pulling rope (18) is connected with said sliding strip (19).

5. A ventilation and smoke exhaust duct according to claim 4, wherein said outer end of said manual lever (16) extends to the outside of said cavity (15) and is fixedly mounted with a twist grip (6).

6. A ventilation and smoke exhaust duct according to claim 1, wherein the bottom of one branch duct (1) of said plurality of branch ducts (1) is connected to a dust exhaust duct (22).