CN221004108U - Smoke exhaust air pipe through-wall fireproof plugging device - Google Patents
Smoke exhaust air pipe through-wall fireproof plugging device Download PDFInfo
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- CN221004108U CN221004108U CN202322287985.8U CN202322287985U CN221004108U CN 221004108 U CN221004108 U CN 221004108U CN 202322287985 U CN202322287985 U CN 202322287985U CN 221004108 U CN221004108 U CN 221004108U
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- Prior art keywords
- blocking block
- block
- smoke exhaust
- blocking
- air pipe
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- 239000000779 smoke Substances 0.000 title claims abstract description 49
- 230000000903 blocking effect Effects 0.000 claims abstract description 129
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims description 30
- 239000000945 filler Substances 0.000 claims description 22
- 239000011490 mineral wool Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 3
- 239000003517 fume Substances 0.000 claims 3
- 238000009434 installation Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of through-wall fireproof blocking of pipelines, in particular to a through-wall fireproof blocking device of a smoke exhaust air pipe, which aims at the problems that an existing blocking mechanism needs to fix an upper protection plate and a lower protection plate on a wall surface by using expansion bolts, the installation can be performed after the inner side and the outer side of the wall surface are provided with holes before the expansion bolts are installed, the holes on the wall surface need to increase the workload of workers and reduce the working efficiency; connecting portion, the process of installation first chock and second chock need not to carry out trompil processing to the wall, effectually has promoted work efficiency.
Description
Technical Field
The utility model relates to the technical field of through-wall fireproof blocking of pipelines, in particular to a through-wall fireproof blocking device of a smoke exhaust air pipe.
Background
The smoke exhaust air pipe is a pipeline system for air transportation and distribution and is mainly used for exhausting smoke generated in a room; at present, most common smoke exhaust air pipes are combined rectangular metal air pipes, each smoke exhaust air pipe unit comprises an air pipe body and connecting edges protruding from two ends of the air pipe body, two adjacent air pipe units are connected through bolts to achieve mutual splicing of the air pipe units, and a plurality of air pipe units are connected to form a sealed smoke exhaust air pipe. In order to realize the through-wall installation of the smoke exhaust air pipe, air pipe holes are formed in a building wall, trowelling treatment is carried out on the inner walls of the air pipe holes, air pipe units are inserted into the air pipe holes after trowelling of the inner walls of the air pipe holes, the air pipe bodies are positioned in the wall body and are connected on two sides of the wall body along the connecting edge so as to be connected with adjacent air pipe units, and then a fireproof bag is used for filling gaps between the inner walls of the air pipe holes and the air pipe bodies to perform fireproof isolation, so that fire risks are reduced.
Through retrieval, chinese patent with the patent publication number of CN216446202U discloses a through-wall fireproof blocking device of a smoke exhaust air pipe, which comprises fireproof filler filled between the inner wall of an air pipe hole on a wall body and the smoke exhaust air pipe and blocking mechanisms sleeved on the air pipe and positioned on two sides of the wall body and used for blocking the fireproof filler in a gap between the inner wall of the air pipe hole and the smoke exhaust air pipe, wherein the blocking mechanisms are fixedly connected with the wall body; this patent is mainly to packing the in-process that prevents fire package, prevents fire package material and easily drops from the clearance simultaneously, prevents fire package material and easily ages relatively, prevents that material is easily dropped in the fire package, but the shutoff mechanism need utilize expansion bolts to be fixed in the wall with upper and lower guard plate in the device, but before the expansion bolts installation need just can install after the inside and outside trompil of wall, the trompil needs to increase staff's work burden on the wall, reduces work efficiency, can cause irreversible destruction to the wall simultaneously, is unfavorable for using.
Aiming at the problems, the utility model provides a smoke exhaust air pipe wall-penetrating fireproof plugging device.
Disclosure of utility model
The utility model provides a smoke exhaust air pipe through-wall fireproof blocking device, which solves the defects that in the prior art, a blocking mechanism needs to fix an upper protection plate and a lower protection plate on a wall surface by using expansion bolts, but the expansion bolts can be installed after holes are formed in the inner side and the outer side of the wall surface before being installed, the holes are formed in the wall surface, the workload of workers needs to be increased, and the working efficiency is reduced.
The utility model provides the following technical scheme:
The fire-proof plugging device comprises an air duct hole formed in a wall body, a smoke exhaust air duct penetrating through the air duct hole, a fire-proof filler filled in the air duct hole and the smoke exhaust air duct, a first plugging block and a second plugging block, wherein the first plugging block and the second plugging block are sleeved on the surface of the smoke exhaust air duct and used for plugging the fire-proof filler; the connecting part is arranged between the first blocking block and the second blocking block and is used for fixing the first blocking block and the second blocking block on the surface of the smoke exhaust air pipe; the two groups of clamping and positioning mechanisms are respectively arranged in the first blocking block and the second blocking block and used for positioning the first blocking block and the second blocking block in the air pipe hole to block the fireproof filler.
In one possible design, each group of clamping and positioning mechanisms comprises an inverted U-shaped groove arranged in the first blocking block, an inverted U-shaped extrusion block is connected in a sliding manner in the inverted U-shaped groove, two adjusting screw rods are connected in the inverted U-shaped groove in a rotating manner, and the inverted U-shaped extrusion blocks are connected with the circumferential surfaces of the two adjusting screw rods in a threaded manner.
In one possible design, a first groove is formed in the first blocking block, two adjusting screw rods are upwards and movably penetrated into the first groove, a worm is rotationally connected to the first groove, worm wheels are fixedly connected to the circumferential surfaces of the two adjusting screw rods, the worm is respectively meshed with the two worm wheels, the worm outwards and movably penetrates through the side end of the first blocking block and outwards extends, and a hand screwing screw head is fixedly connected to the side end of the worm.
In one possible design, the connecting portion includes two installation blocks, two the installation blocks are fixed connection respectively in the side of first jam piece and second jam piece, two all seted up the connecting hole in the installation block, run through in two connecting holes has the bolt, the circumference surface threaded connection of bolt has the nut.
In one possible design, the lateral ends of both said inverted U-shaped extrusion blocks are provided with anti-slip pads.
In one possible design, the first and second blocks are each made of rock wool board.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, two hand screw heads in the first blocking block and the second blocking block are respectively screwed, the hand screw heads drive a worm to rotate, the worm rotates to drive two worm gears to rotate, the two worm gears rotate to drive two adjusting screw rods to synchronously rotate, the two adjusting screw rods synchronously rotate to drive the inverted U-shaped extrusion blocks to extend outwards, the two inverted U-shaped extrusion blocks in the first blocking block and the second blocking block are respectively extruded in the upper and lower directions, and the first blocking block and the second blocking block are fixed in the air pipe holes by utilizing the outward extrusion force of the two inverted U-shaped extrusion blocks to realize blocking of fireproof fillers;
According to the technical scheme, the first blocking block and the second blocking block are conveniently sleeved and fixed on the surface of the smoke exhaust air pipe through the connecting part arranged between the first blocking block and the second blocking block, the first blocking block and the second blocking block are respectively extruded and positioned in the air pipe hole by the clamping and fixing mechanism in the first blocking block and the second blocking block, so that the positions of the first blocking block and the second blocking block are fixed, the fireproof filler filled in the air pipe hole is protected, the situation that the fireproof filler cannot fall off from the air pipe hole is effectively ensured, the wall surface is not required to be perforated in the process of installing the first blocking block and the second blocking block, the working efficiency is effectively improved, and the wall surface is better protected.
Drawings
Fig. 1 is a front perspective view of a smoke exhaust duct through-wall fireproof plugging device according to an embodiment of the present utility model;
fig. 2 is a cross-sectional view of a wall-penetrating fireproof plugging device for a smoke exhaust duct according to an embodiment of the present utility model;
fig. 3 is a first partial cross-sectional view of a wall-penetrating fireproof plugging device for a smoke exhaust duct according to an embodiment of the present utility model;
Fig. 4 is a second partial cross-sectional view of a wall-penetrating fireproof plugging device for a smoke exhaust duct according to an embodiment of the present utility model;
Fig. 5 is a partial perspective view of a wall-penetrating fireproof plugging device for a smoke exhaust duct according to an embodiment of the present utility model.
Reference numerals:
1. A smoke exhaust air pipe; 2. an air pipe hole; 3. a first blocking block; 31. a second blocking block; 4. fireproof filler; 5. an inverted U-shaped groove; 6. an inverted U-shaped extrusion block; 7. a first groove; 8. a worm; 9. adjusting a screw rod; 10. a worm wheel; 11. a mounting block; 12. a connection hole; 13. a bolt; 14. and screwing the screw head by hand.
Detailed Description
Embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present utility model are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present utility model, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present utility model.
In embodiments of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the embodiment of the present utility model, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Example 1
Referring to fig. 1-5, a through-wall fireproof blocking device for a smoke exhaust duct comprises a duct hole 2 formed in a wall body, and a smoke exhaust duct 1 penetrating through the duct hole 2, wherein fireproof fillers 4 are filled in the duct hole 2 and the smoke exhaust duct 1, and the fireproof blocking device further comprises a first blocking block 3 and a second blocking block 31, wherein the first blocking block 3 and the second blocking block 31 are sleeved on the surface of the smoke exhaust duct 1 and used for blocking the fireproof fillers 4; the connecting part is arranged between the first blocking block 3 and the second blocking block 31 and is used for fixing the first blocking block 3 and the second blocking block 31 on the surface of the smoke exhaust air pipe 1; the two groups of clamping and positioning mechanisms are respectively arranged in the first blocking block 3 and the second blocking block 31 and used for positioning the first blocking block 3 and the second blocking block 31 in the air pipe hole 2 to block the fireproof filler 4.
The above-mentioned technical scheme can reach and establish the surface that is fixed in flue gas tuber pipe 1 through the connecting portion that sets up between first chock 3 and second chock 31 convenience with first chock 3 and second chock 31 cover, thereby respectively utilize the centre gripping fixed establishment in first chock 3 and the second chock 31 extrusion location in tuber pipe hole 2 with first chock 3 and second chock 31, thereby accomplish the fixed of first chock 3 and second chock 31 position, make it protect for the fire prevention filler 4 that fills in tuber pipe hole 2, effectually guaranteed can not drop from tuber pipe hole 2 in, the process of installing first chock 3 and second chock 31 need not to carry out the trompil processing to the wall simultaneously, the effectual work efficiency that has promoted, also have better protection's to the wall technological effect.
Referring to fig. 1 and 4, the connection portion includes two mounting blocks 11, the two mounting blocks 11 are fixedly connected to side ends of the first blocking block 3 and the second blocking block 31 respectively, connection holes 12 are formed in the two mounting blocks 11, bolts 13 penetrate through the two connection holes 12, and nuts are screwed on the circumferential surfaces of the bolts 13.
During installation, the first blocking block 3 is sleeved on the upper side of the smoke exhaust air pipe 1, the second blocking block 31 is clamped into the lower surface of the smoke exhaust air pipe 1 from the lower side, the first blocking block 3 and the second blocking block 31 are half-plugged into the air pipe holes 2, the bolts 13 are inserted into the two connecting holes 12, the threaded sleeves are sleeved on the surfaces of the bolts 13 to be screwed, and the screwed nuts are connected with the first blocking block 3 and the second blocking block 31 into a whole.
Referring to fig. 3 and 4, each group of clamping and positioning mechanisms comprises an inverted U-shaped groove 5 which is arranged in the first blocking block 3, an inverted U-shaped extrusion block 6 is connected in a sliding manner in the inverted U-shaped groove 5, two adjusting screw rods 9 are connected in a rotating manner in the inverted U-shaped groove 5, and the inverted U-shaped extrusion block 6 is connected to the circumferential surfaces of the two adjusting screw rods 9 in a threaded manner; the side ends of the two inverted U-shaped extrusion blocks 6 are respectively provided with an anti-slip pad; the two adjusting screw rods 9 synchronously rotate; the two adjusting screw rods 9 synchronously rotate to drive the inverted U-shaped extrusion blocks 6 to extend outwards, the two inverted U-shaped extrusion blocks 6 in the first blocking block 3 and the second blocking block 31 are respectively extruded in the upper direction and the lower direction, and the first blocking block 3 and the second blocking block 31 are fixed in the air pipe hole 2 by utilizing the outward extrusion force of the two inverted U-shaped extrusion blocks 6 to block the fireproof filler 4.
Example 2
Referring to fig. 1-5, a through-wall fireproof blocking device for a smoke exhaust duct comprises a duct hole 2 formed in a wall body, and a smoke exhaust duct 1 penetrating through the duct hole 2, wherein fireproof fillers 4 are filled in the duct hole 2 and the smoke exhaust duct 1, and the fireproof blocking device further comprises a first blocking block 3 and a second blocking block 31, wherein the first blocking block 3 and the second blocking block 31 are sleeved on the surface of the smoke exhaust duct 1 and used for blocking the fireproof fillers 4; the connecting part is arranged between the first blocking block 3 and the second blocking block 31 and is used for fixing the first blocking block 3 and the second blocking block 31 on the surface of the smoke exhaust air pipe 1; the two groups of clamping and positioning mechanisms are respectively arranged in the first blocking block 3 and the second blocking block 31 and used for positioning the first blocking block 3 and the second blocking block 31 in the air pipe hole 2 to block the fireproof filler 4.
The above-mentioned technical scheme can reach and establish the surface that is fixed in flue gas tuber pipe 1 through the connecting portion that sets up between first chock 3 and second chock 31 convenience with first chock 3 and second chock 31 cover, thereby respectively utilize the centre gripping fixed establishment in first chock 3 and the second chock 31 extrusion location in tuber pipe hole 2 with first chock 3 and second chock 31, thereby accomplish the fixed of first chock 3 and second chock 31 position, make it protect for the fire prevention filler 4 that fills in tuber pipe hole 2, effectually guaranteed can not drop from tuber pipe hole 2 in, the process of installing first chock 3 and second chock 31 need not to carry out the trompil processing to the wall simultaneously, the effectual work efficiency that has promoted, also have better protection's to the wall technological effect.
Referring to fig. 1 and 4, the connection portion includes two mounting blocks 11, the two mounting blocks 11 are fixedly connected to side ends of the first blocking block 3 and the second blocking block 31 respectively, connection holes 12 are formed in the two mounting blocks 11, bolts 13 penetrate through the two connection holes 12, and nuts are screwed on the circumferential surfaces of the bolts 13.
During installation, the first blocking block 3 is sleeved on the upper side of the smoke exhaust air pipe 1, the second blocking block 31 is clamped into the lower surface of the smoke exhaust air pipe 1 from the lower side, the first blocking block 3 and the second blocking block 31 are half-plugged into the air pipe holes 2, the bolts 13 are inserted into the two connecting holes 12, the threaded sleeves are sleeved on the surfaces of the bolts 13 to be screwed, and the screwed nuts are connected with the first blocking block 3 and the second blocking block 31 into a whole.
Referring to fig. 3 and 4, each group of clamping and positioning mechanisms comprises an inverted U-shaped groove 5 which is arranged in the first blocking block 3, an inverted U-shaped extrusion block 6 is connected in a sliding manner in the inverted U-shaped groove 5, two adjusting screw rods 9 are connected in a rotating manner in the inverted U-shaped groove 5, and the inverted U-shaped extrusion block 6 is connected to the circumferential surfaces of the two adjusting screw rods 9 in a threaded manner; the lateral ends of the two inverted U-shaped extrusion blocks 6 are respectively provided with an anti-slip pad.
Referring to fig. 4, a first groove 7 is formed in the first blocking block 3, two adjusting screw rods 9 are all movably penetrated into the first groove 7 upwards, a worm 8 is connected in the first groove 7 in a rotating manner, worm wheels 10 are fixedly connected to the circumferential surfaces of the two adjusting screw rods 9, the worm 8 is respectively meshed with the two worm wheels 10, the worm 8 is outwards movably penetrated through the side end of the first blocking block 3 and outwards extends, and a hand screwing screw head 14 is fixedly connected to the side end of the worm 8.
The screw head 14 is screwed, the screw head 14 is screwed to drive the worm 8 to rotate, the worm 8 rotates to drive the two worm gears 10 to rotate, and the two worm gears 10 rotate to drive the two adjusting screw rods 9 to synchronously rotate; the two adjusting screw rods 9 synchronously rotate to drive the inverted U-shaped extrusion blocks 6 to extend outwards, the two inverted U-shaped extrusion blocks 6 in the first blocking block 3 and the second blocking block 31 are respectively extruded in the upper direction and the lower direction, and the first blocking block 3 and the second blocking block 31 are fixed in the air pipe hole 2 by utilizing the outward extrusion force of the two inverted U-shaped extrusion blocks 6 to block the fireproof filler 4.
Both the first block 3 and the second block 31 are made of rock wool plates, not shown in the figures; the rock wool board is a novel heat-insulating, flame-retardant and sound-absorbing material, and can further increase the safety of plugging.
The working principle and the using flow of the technical scheme are as follows: during installation, the first blocking block 3 is sleeved on the upper side of the smoke exhaust air pipe 1, the second blocking block 31 is clamped into the lower surface of the smoke exhaust air pipe 1 from the lower side, the first blocking block 3 and the second blocking block 31 are half-blocked into the air pipe hole 2, the bolts 13 are inserted into the two connecting holes 12, the threaded sleeves are screwed on the surfaces of the bolts 13, the screwed nuts are connected with the first blocking block 3 and the second blocking block 31 into a whole, then the two hand screwed screw heads 14 in the first blocking block 3 and the second blocking block 31 are screwed respectively, the hand screwed screw heads 14 drive the worm 8 to rotate, the worm 8 rotates to drive the two worm gears 10 to rotate, the two worm gears 10 rotate to drive the two adjusting screw 9 to synchronously rotate to drive the inverted U-shaped extrusion blocks 6 to outwards extend, the two inverted U-shaped extrusion blocks 6 in the first blocking block 3 and the second blocking block 31 are respectively extruded in the upper direction and the lower direction, and the two inverted U-shaped extrusion blocks 6 are used for fixing the first blocking block 3 and the second blocking block 31 in the air pipe hole 2.
The present utility model is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are intended to be covered by the scope of the present utility model; embodiments of the utility model and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a fire prevention plugging device is worn to wall to tuber pipe of discharging fume, includes and offers tuber pipe hole (2) in the wall and runs through tuber pipe (1) of discharging fume in tuber pipe hole (2), tuber pipe hole (2) and tuber pipe (1) intussuseption of discharging fume are filled with fire prevention filler (4), its characterized in that still includes:
The first blocking block (3) and the second blocking block (31) are sleeved on the surface of the smoke exhaust air pipe (1) to block the fireproof filler (4);
The connecting part is arranged between the first blocking block (3) and the second blocking block (31) and is used for fixing the first blocking block (3) and the second blocking block (31) on the surface of the smoke exhaust air pipe (1);
The two groups of clamping and positioning mechanisms are respectively arranged in the first blocking block (3) and the second blocking block (31) and used for positioning the first blocking block (3) and the second blocking block (31) in the air pipe hole (2) to block the fireproof filler (4).
2. The smoke exhaust air duct through-wall fireproof blocking device according to claim 1, wherein each group of clamping and positioning mechanisms comprises an inverted U-shaped groove (5) arranged in the first blocking block (3), an inverted U-shaped extrusion block (6) is connected in a sliding manner in the inverted U-shaped groove (5), two adjusting screw rods (9) are connected in the inverted U-shaped groove (5) in a rotating manner, and the inverted U-shaped extrusion block (6) is connected to the circumferential surfaces of the two adjusting screw rods (9) in a threaded manner.
3. The smoke exhaust air pipe through-wall fireproof blocking device according to claim 2, wherein a first groove (7) is formed in the first blocking block (3), two adjusting screw rods (9) are movably penetrated into the first groove (7) upwards, a worm (8) is rotationally connected to the first groove (7), worm wheels (10) are fixedly connected to the circumferential surfaces of the two adjusting screw rods (9), the worm (8) are respectively meshed with the two worm wheels (10), the worm (8) is outwards movably penetrated through the side end of the first blocking block (3) and outwards extends, and a hand screw head (14) is fixedly connected to the side end of the worm (8).
4. A smoke exhaust duct through-wall fireproof plugging device according to any one of claims 1-3, wherein said connection portion comprises two mounting blocks (11), said two mounting blocks (11) are fixedly connected to side ends of the first plugging block (3) and the second plugging block (31), said two mounting blocks (11) are provided with connection holes (12), bolts (13) are inserted through said two connection holes (12), and nuts are screwed on the circumferential surfaces of said bolts (13).
5. The smoke exhaust duct through-wall fireproof blocking device according to claim 2, wherein the lateral ends of the two inverted U-shaped extrusion blocks (6) are provided with anti-slip pads.
6. A smoke exhaust duct through-wall fire protection plugging device according to any of claims 1-3, wherein said first and second plugging blocks (3, 31) are each made of rock wool board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322287985.8U CN221004108U (en) | 2023-08-24 | 2023-08-24 | Smoke exhaust air pipe through-wall fireproof plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322287985.8U CN221004108U (en) | 2023-08-24 | 2023-08-24 | Smoke exhaust air pipe through-wall fireproof plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221004108U true CN221004108U (en) | 2024-05-24 |
Family
ID=91092014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322287985.8U Active CN221004108U (en) | 2023-08-24 | 2023-08-24 | Smoke exhaust air pipe through-wall fireproof plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221004108U (en) |
-
2023
- 2023-08-24 CN CN202322287985.8U patent/CN221004108U/en active Active
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