CN215669670U - Fireproof underground comprehensive pipe gallery - Google Patents
Fireproof underground comprehensive pipe gallery Download PDFInfo
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- CN215669670U CN215669670U CN202122022039.1U CN202122022039U CN215669670U CN 215669670 U CN215669670 U CN 215669670U CN 202122022039 U CN202122022039 U CN 202122022039U CN 215669670 U CN215669670 U CN 215669670U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 186
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 239000011380 pervious concrete Substances 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 12
- 239000003595 mist Substances 0.000 claims abstract description 11
- 238000009423 ventilation Methods 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims 8
- 238000004891 communication Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 239000011372 high-strength concrete Substances 0.000 description 4
- 238000009415 formwork Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The utility model belongs to the technical field of building construction, and particularly relates to a fireproof underground comprehensive pipe gallery which comprises a prefabricated top plate, a prefabricated bottom plate, prefabricated wall plates, cast-in-place pervious concrete, a water supply pipe, a drain pipe, a prefabricated pervious concrete plate, a ventilation opening, an air outlet, a water mist spray head, a water storage cabin A, a water storage cabin B, a gas cabin, a comprehensive cabin, a water and electricity communication cabin and an electric power cabin; a layer of pervious concrete is arranged on the inner side of the top plate and the inner wall of the wall plate, water supply pipes are arranged in the top plate, and each water supply pipe is connected with 3 cabins; the gas cabin and the comprehensive cabin bottom plate are arranged in a slightly inclined manner at 0-10 degrees, and holes are reserved on the gas cabin and the comprehensive cabin wall plate for drainage; the water telecommunication cabin and the electric power cabin are arranged in a micro-inclination way at 0 to-10 degrees, and holes are reserved on the telecommunication cabin and the electric power cabin wall board for draining water; the top of the water storage cabin is provided with a prefabricated water-permeable concrete plate, a filter screen is arranged in the water storage cabin, and the height of the prefabricated water-permeable concrete plate is flush with the ground; the utility model has the advantages of convenient installation and pouring, and the stress performance and the durability of the whole pipe gallery are improved.
Description
Technical Field
The utility model belongs to the technical field of building construction, and particularly relates to a fireproof type underground comprehensive pipe gallery.
Background
The sponge city is a new concept, absorbs water and stores water for the city in the rainy period, effectively controls the rainwater runoff, is a big concept, except roads and squares, can adopt permeable pavement, and the ecological functions of greenbelts and wetlands are also very important in the aspect of adjusting the city ecology, thereby enabling the water utilization to be more flexible.
The gas cabin is used for carrying inflammable and explosive gas in the utility tunnel, and inflammable gas also exists in the sewage pipe, has the conflagration hidden danger. Another situation where the utility tunnel causes a fire is when the power cables in the tunnel are running. When the current or voltage carried by the power cable exceeds a threshold value, the temperature of the cable is overhigh, and a fire disaster is caused. If the local contact of the outgoing line in the cable power system is poor, the circuit resistance is increased, and the outgoing line gradually becomes hot, so that the combustion is caused, and a fire disaster is caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a fireproof type underground comprehensive pipe gallery. The rainwater collection and reuse system is mainly used for developing a system which can comprehensively utilize rainwater, realize rainwater collection and reuse and is used for underground comprehensive pipe gallery fire prevention.
The technical scheme adopted by the utility model is as follows:
a fireproof underground comprehensive pipe gallery comprises a drain pipe, a water supply pipe, a prefabricated bottom plate, a prefabricated pervious concrete plate, a top plate inner side reinforcing steel bar, a prefabricated wall plate inner wall reinforcing steel bar, a top plate, a hole, a filter screen, a wall plate outer wall reinforcing steel bar, a ventilation opening, a water mist spray head, an air exhaust opening, a water storage cabin A, a gas cabin, a comprehensive cabin, a water telecommunication cabin, an electric power cabin, a water storage cabin B and a prefabricated wall plate; a layer of pervious concrete is arranged on the inner side of a top plate and on the inner wall of a wall plate of the fireproof underground comprehensive pipe gallery, water supply pipes are arranged in the top plate and the wall plate, and each water supply pipe is connected with three cabins; the gas cabin, the comprehensive cabin and the bottom plate are arranged in a slightly inclined manner at 0-10 degrees, and holes are reserved on the gas cabin and the comprehensive cabin wall plate; the water telecommunication cabin and the electric power cabin are arranged in a micro-inclination way of 0 to-10 degrees, and holes are reserved on the wall plates of the water telecommunication cabin and the electric power cabin; the tops of the water storage cabin A and the water storage cabin B are prefabricated water permeable concrete plates, filter screens are arranged in the water storage cabin A and the water storage cabin B, the prefabricated water permeable concrete plates are flush with the ground, ventilation openings and air outlets are arranged in each cabin at certain intervals, and water feeding pipes on the inner sides of the top plates of the gas cabin and the electric power cabin and water feeding pipes on the inner walls of the wall plates are uniformly provided with water spray nozzles.
Furthermore, each water supply pipe transversely penetrates through 3 cabins and longitudinally extends to the inner wall of the wallboard, namely a water storage cabin, a gas cabin, a comprehensive cabin or a water storage cabin, a water and electricity communication cabin and an electric power cabin.
Further, water discharged by the water pipe is drained to the water storage cabin A and the water storage cabin B through the holes.
Furthermore, the drain pipe is used for draining, and when the water level of the water storage cabin is too high in a rainstorm or flood period, a water suction pump at the end part of the drain pipe can be turned on to relieve the waterlogging pressure.
Further, the precast permeable concrete slab is arranged on the road surface and used for absorbing accumulated water on the road surface, a filter screen is arranged below the precast permeable concrete slab and used for filtering large-volume impurities, and special persons are arranged to regularly clean small impurities accumulated in the water storage cabin.
Furthermore, an exhaust fan is installed at an exhaust outlet for mechanical exhaust, an air inlet is installed without machinery for natural air intake, the water mist nozzles are arranged on water supply pipes on the inner walls of the wall boards of the gas cabin, the comprehensive cabin, the water telecommunication cabin and the electric power cabin, and the water supply pipes on the inner sides of the top boards of the gas cabin and the electric power cabin are provided with the water mist nozzles.
Further, the water storage compartment maintains a water level of at least 1/3. When the internal conflagration of taking place of shelter and by the sensor response then, the fire control valve is automatic to be opened, and inside the feed pipe can deliver to the piping lane with the water in the water storage tank, put out a fire, the exhaust fan is also automatic to be opened simultaneously, discharges fume through the air exit, and the later stage is arranged special person and is manually closed the fire control valve.
Further, holes in the water storage cabin A and the water storage cabin B are in a closed state daily, holes between the gas cabin and the comprehensive cabin are in an open state daily, holes between the water telecommunication cabin and the electric power cabin are in an open state daily, and when the fire valve is started, holes (8) in the water storage cabin A and the water storage cabin B are opened along with the holes for draining water; when the water level is too high, the water discharge pipe is opened to control the water level by the water pump.
Furthermore, the gas cabin, the comprehensive cabin, the water and electricity communication cabin, the electric power cabin, the water storage cabin A and the water storage cabin B are all of an assembled structure, steel bars are arranged in the assembled structure, and after the assembled structure is arranged at a fixed position, the pouring of pervious concrete and waterproof high-strength concrete is carried out.
Furthermore, the inner wall of the wallboard of the single pipe gallery of the gas cabin, the comprehensive cabin and the water telecommunication cabin is provided with the reinforcing steel bars of the inner wall of the wallboard; the inner side of the top plate is provided with a top plate inner steel bar; later stage formwork erection pours the concrete that permeates water, and the prefabricated reinforcing bar is left to the wallboard outer wall, and the prefabricated reinforcing bar of bulkhead passes through the cabin to be connected with the cabin, and waterproof high-strength concrete is pour in the later stage, and the protective layer thickness is 15mm in the bulkhead, and the interval is arranged to the outer reinforcing bar of bulkhead for 150~200mm, and the interval is arranged to the reinforcing bar in the bulkhead for 200~250mm, and the reinforcing bar diameter is all not less than 6 mm.
The utility model has the beneficial effects that:
compared with the prior art, the utility model has the following effects and advantages:
1) simple to operate pours the convenience, and whole piping lane atress performance and durability can all obtain improving.
2) In the design process, the sponge city is comprehensively considered, and the characteristics of the sponge city are utilized to collect rainwater for fire-fighting water, so that the urban waterlogging pressure is reduced, and when the water storage tank stores too much water, the water drainage pipe can be opened to prevent water.
3) When the waterproof structure is designed, the inner wall of the wallboard and the inner part of the top plate are poured with the water-permeable concrete, the outer wall of the wallboard is poured with the high-strength waterproof concrete, the bonding among cabins is enhanced, and the waterproof performance is enhanced.
4) According to the utility model, the bottom plate can be set to different gradients, water generated after fire extinguishment in the pipe gallery can be returned to the water storage cabin, so that water is recycled, and meanwhile, the water mist spray head can provide dense water mist to be matched with water drops permeated by pervious concrete in the top plate, so that water extinguishment together is realized.
5) The drainage pipe can be used for draining water when the water quantity of the water storage pool is excessive in a flood season, and can be opened for draining water when the water quantity is higher than the hole of the water storage cabin and the interior of the pipe gallery needs to be drained at the same time, so that the water level is controlled below the hole.
6) The bottom plate is an assembled bottom plate, and when concrete needs to be poured in the later period of the wall plate and the top plate, a formwork can be directly erected on the bottom plate, so that the construction is convenient.
Drawings
FIG. 1 is a perspective view of a water storage compartment and a functional compartment
FIG. 2 is a layout of water supply pipes in pervious concrete
FIG. 3 is a front view of a water storage compartment and a functional compartment
FIG. 4 is a layout of reinforcing bars between compartments
FIG. 5 is a steel bar layout diagram of a functional single cabin
FIG. 6 is a front view of the reinforcement of the functional single compartment
FIG. 7 is a perspective view of a water supply pipe and a water mist head
In the drawing, 1 is the drain pipe, 2 is the feed pipe, 3 is the bottom plate, 4 is prefabricated concrete slab that permeates water, 5 is the inboard reinforcing bar of roof, 6 is the reinforcing bar of wallboard inner wall, 7 is the roof, 8 is the hole, 9 is the filter screen, 10 is the reinforcing bar of wallboard outer wall, 11 is the vent, 12 is the water smoke shower nozzle, 13 is the air exit, 14 is the water storage tank, 15 is the gas cabin, 16 is synthesizing the cabin, 17 is the water telecommunication cabin, 18 is the electric power cabin, 19 is the water storage tank, 20 is prefabricated wallboard.
Detailed Description
The utility model is described in detail below with reference to the following figures and examples:
example (b): as shown in fig. 1 to 5, the fireproof type underground comprehensive pipe gallery comprises a drain pipe 1, a water supply pipe 2, a prefabricated bottom plate 3, a prefabricated water-permeable concrete plate 4, a top plate inner side steel bar 5, a wall plate inner wall steel bar 6, a top plate 7, a hole 8, a filter screen 9, a wall plate outer wall steel bar 10, a vent 11, a water mist spray head 12, an air outlet 13, a water storage cabin A14, a gas cabin 15, a comprehensive cabin 16, a water and electricity communication cabin 17, an electric power cabin 18, a water storage cabin B19 and a prefabricated wall plate 20; a layer of pervious concrete is arranged on the inner side of a top plate 7 and the inner wall of a wall plate 20 of the fireproof underground comprehensive pipe gallery, water supply pipes 2 are arranged in the top plate 7 and the wall plate 20, and each water supply pipe 2 is connected with three cabins; the gas cabin 15, the comprehensive cabin 16 and the bottom plate 3 are arranged in a 0-10-degree micro-inclined mode, and holes 8 are reserved in wall plates of the gas cabin 15 and the comprehensive cabin 16; the water telecommunication cabin 17 and the electric power cabin 18 are arranged in a micro-inclination of 0 to-10 degrees, and holes 8 are reserved on the wall plates of the water telecommunication cabin 17 and the electric power cabin 18; the tops of the water storage cabin A14 and the water storage cabin B19 are provided with prefabricated water-permeable concrete plates 4, a filter screen 9 is arranged in the water storage cabin A14 and the water storage cabin B19, the prefabricated water-permeable concrete plates 4 are flush with the ground, ventilation openings 11 and air outlets 13 are arranged in each cabin at certain intervals, and water spray nozzles 12 are arranged on water supply pipes on the inner sides of the top plate of the gas cabin and the electric power cabin and on water supply pipes on the inner wall of the wall plate.
Each water supply pipe 2 transversely penetrates through 3 cabins and longitudinally extends to the inner wall of the wall board, namely a water storage cabin 14, a gas cabin 15, a comprehensive cabin 16 or a water storage cabin 19, a water telecommunication cabin 17 and an electric power cabin 18.
The water discharged by the water pipe 2 is drained to the water storage cabin A14 and the water storage cabin B19 through the holes 8.
The drain pipe 1 is used for draining, and when the water level of the water storage cabin is too high in a rainstorm or flood period, a water suction pump at the end part of the drain pipe 1 can be opened to relieve the waterlogging pressure.
The precast water-permeable concrete plate 4 is arranged on the road surface, and a filter screen 9 is arranged below the precast water-permeable concrete plate 4.
An exhaust fan is arranged at an exhaust outlet 13 for mechanically exhausting air, an air inlet 11 is not mechanically arranged for naturally supplying air, a water mist spray head 12 is arranged on a water supply pipe 2 on the inner wall of a wall plate of a gas cabin 15, a comprehensive cabin 16, a water telecommunication cabin 17 and an electric power cabin 18, and the water supply pipe 2 on the inner side of a top plate 7 of the gas cabin 15 and the electric power cabin 18 is provided with the water mist spray head 12. The reservoir holds at least 1/3 water levels.
The holes 8 at the water storage cabin A14 and the water storage cabin B19 are in a closed state daily, the hole 8 between the gas cabin and the comprehensive cabin is in an open state daily, the hole 8 between the water telecommunication cabin 17 and the electric power cabin 18 is in an open state daily, and when the fire valve is started, the holes 8 at the water storage cabin A14 and the water storage cabin B19 are opened along with the water for draining; when the water level is too high, the water discharge pipe 1 is opened to control the water pump to control the water level.
The gas cabin 15, the comprehensive cabin 16, the water and electricity communication cabin 17, the electric power cabin 18, the water storage cabin A14 and the water storage cabin B19 are all fabricated structures, steel bars are arranged in the fabricated structures, and after the fabricated structures are arranged at fixed positions, pervious concrete and waterproof high-strength concrete are poured. Wall plate inner wall steel bars 6 are arranged on the inner walls of a single pipe rack wall plate 20 of a gas cabin 15, a comprehensive cabin 16, a water telecommunication cabin 17 and an electric cabin 18; the inner side of the top plate 7 is provided with a top plate inner side steel bar 5; later stage formwork erection pours the concrete that permeates water, and prefabricated reinforcing bar 10 is left to the wallboard outer wall, and bulkhead prefabricated reinforcing bar 10 passes through the cabin to be connected with the cabin, and waterproof high-strength concrete is pour in the later stage, and the protective layer thickness is 15mm in the cabin wall, and the interval is arranged to the outer reinforcing bar of cabin wall for 150~200mm, and the interval is arranged to the reinforcing bar in the cabin wall for 200~250mm, and the reinforcing bar diameter is all not less than 6 mm.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A fireproof underground comprehensive pipe gallery comprises a drain pipe (1), a water supply pipe (2), a prefabricated bottom plate (3), a prefabricated pervious concrete slab (4), top plate inner side steel bars (5), wall plate inner wall steel bars (6), a top plate (7), holes (8), a filter screen (9), wall plate outer wall steel bars (10), a ventilation opening (11), a water mist spray head (12), an air outlet (13), a water storage cabin A (14), a gas cabin (15), a comprehensive cabin (16), a water telecommunication cabin (17), an electric power cabin (18), a water storage cabin B (19) and a prefabricated wall plate (20); a layer of pervious concrete is arranged on the inner side of a top plate (7) of the fireproof underground comprehensive pipe gallery and the inner wall of a prefabricated wall plate (20), water supply pipes (2) are arranged in the top plate (7) and the wall plate (20), and each water supply pipe (2) is connected with three cabins; the gas cabin (15), the comprehensive cabin (16) and the bottom plate (3) are arranged in a 0-10-degree micro-inclined mode, and holes (8) are reserved in the wall plates of the gas cabin (15) and the comprehensive cabin (16); the water telecommunication cabin (17) and the electric power cabin (18) are arranged in a micro-inclination of 0-10 degrees, and holes (8) are reserved on the wall plates of the water telecommunication cabin (17) and the electric power cabin (18); the top of the water storage cabin A (14) and the top of the water storage cabin B (19) are provided with a prefabricated water permeable concrete plate (4), a filter screen (9) is arranged in the water storage cabin A, the prefabricated water permeable concrete plate (4) is flush with the ground, ventilation openings (11) and air exhaust openings (13) are arranged in each cabin at certain intervals, and water spray nozzles (12) are arranged on water supply pipes on the inner sides of the top plates of the gas cabin and the electric power cabin and on water supply pipes on the inner walls of the wall plates.
2. The fire-resistant type underground comprehensive pipe gallery according to claim 1, characterized in that: every feed pipe (2) transversely runs through 3 cabins, vertically extends to the wallboard inner wall, is water storage cabin (14), gas cabin (15), synthesizes cabin (16) or water storage cabin (19), water telecommunication cabin (17), electric power cabin (18) respectively.
3. The fire-resistant type underground comprehensive pipe gallery according to claim 1, characterized in that: the water discharged by the water pipe (2) is drained to the water storage cabin A (14) and the water storage cabin B (19) through the holes (8).
4. The fire-resistant type underground comprehensive pipe gallery according to claim 1, characterized in that: the water drainage pipe (1) is used for draining water, and when the water level of the water storage cabin is too high in a rainstorm or flood period, a water suction pump at the end part of the water drainage pipe (1) can be turned on to relieve the waterlogging pressure.
5. The fire-resistant type underground comprehensive pipe gallery according to claim 1, characterized in that: the precast water-permeable concrete plate (4) is arranged on the road surface, and a filter screen (9) is arranged below the precast water-permeable concrete plate (4).
6. The fire-resistant type underground comprehensive pipe gallery according to claim 1, characterized in that: an exhaust fan is installed at an exhaust outlet (13) for mechanically exhausting air, an air inlet (11) is not mechanically installed for naturally supplying air, a water spray nozzle (12) is arranged on a water supply pipe (2) on the inner wall of a wall plate of a gas cabin (15), a comprehensive cabin (16), a water telecommunication cabin (17) and an electric power cabin (18), and the water spray nozzle (12) is arranged on the water supply pipe (2) on the inner side of a top plate (7) of the gas cabin (15) and the electric power cabin (18).
7. The fire-resistant type underground comprehensive pipe gallery according to claim 1, characterized in that: the reservoir holds at least 1/3 water levels.
8. The fire-resistant type underground comprehensive pipe gallery according to claim 1, characterized in that: the gas cabin (15), the comprehensive cabin (16), the water telecommunication cabin (17), the electric power cabin (18), the water storage cabin A (14) and the water storage cabin B (19) are all of an assembly type structure, and steel bars are arranged in the assembly type structure.
9. The fire-resistant type underground comprehensive pipe gallery according to claim 1, characterized in that: the wall plate inner wall steel bars (6) are arranged on the inner walls of the single pipe gallery wall plates (20) of the gas cabin (15), the comprehensive cabin (16), the water telecommunication cabin (17) and the electric cabin (18); the inner side of the top plate (7) is provided with a top plate inner side steel bar (5); prefabricated reinforcing bar (10) are left to the wallboard outer wall, and bulkhead prefabricated reinforcing bar (10) are connected with the cabin through the cabin, and the protective layer thickness is 15mm in the cabin wall, and the interval is arranged to the outer reinforcing bar of cabin wall for 150~200mm, and the interval is arranged to the reinforcing bar in the cabin wall for 200~250mm, and the reinforcing bar diameter is all not less than 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122022039.1U CN215669670U (en) | 2021-08-26 | 2021-08-26 | Fireproof underground comprehensive pipe gallery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122022039.1U CN215669670U (en) | 2021-08-26 | 2021-08-26 | Fireproof underground comprehensive pipe gallery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215669670U true CN215669670U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122022039.1U Expired - Fee Related CN215669670U (en) | 2021-08-26 | 2021-08-26 | Fireproof underground comprehensive pipe gallery |
Country Status (1)
| Country | Link |
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| CN (1) | CN215669670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585338A (en) * | 2021-08-26 | 2021-11-02 | 沈阳促晋科技有限公司 | Fireproof underground comprehensive pipe gallery |
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2021
- 2021-08-26 CN CN202122022039.1U patent/CN215669670U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585338A (en) * | 2021-08-26 | 2021-11-02 | 沈阳促晋科技有限公司 | Fireproof underground comprehensive pipe gallery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20220128 |