CN217580479U - Firewall smoke-proof drainage device of underground comprehensive pipe gallery - Google Patents
Firewall smoke-proof drainage device of underground comprehensive pipe gallery Download PDFInfo
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- CN217580479U CN217580479U CN202221203184.8U CN202221203184U CN217580479U CN 217580479 U CN217580479 U CN 217580479U CN 202221203184 U CN202221203184 U CN 202221203184U CN 217580479 U CN217580479 U CN 217580479U
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- cover plate
- upper cover
- drainage device
- water
- raceway
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Abstract
The utility model relates to the technical field of fire prevention engineering, a smoke-proof drainage device of a firewall of an underground comprehensive pipe gallery is disclosed, which comprises a water pipe (8), wherein the free end of the water pipe is provided with a plugging mechanism, the plugging mechanism comprises an upper cover plate (1), a lower cover plate (2), a first connecting unit and a second connecting unit, the upper cover plate (1) is hinged with the water pipe (8) through the second connecting unit, the lower cover plate (2) is hinged with the upper cover plate (1) through the first connecting unit, and the end part of the water pipe (8) is provided with a sealing strip (7); the utility model discloses a divide into the apron two-layerly, when the water delivery volume is less, only open lower apron (2), can guarantee when raceway (8) leads to water, with the flue gas shutoff on the upper strata of raceway (8), if meet the water yield when great, upper cover plate (1) is opened simultaneously with lower apron (2), has guaranteed the water yield of raceway (8).
Description
Technical Field
The utility model relates to a fire prevention engineering technical field, in particular to fire wall smoke prevention drainage device is prevented to utility tunnel underground.
Background
Utility tunnel is located several meters underground department, and every 200 meters are a fire prevention subregion, separates with airtight fire prevention wall between the fire prevention subregion, and each fire prevention subregion is equipped with the sump pit, and the inside ponding footpath escape canal of pipe rack flows in the sump pit, and the passageway in the escape canal can make the flue gas diffuse to other subregions when the conflagration breaing out, can not reach smoke protection effect.
The existing smoke prevention device is mainly a smoke exhaust check valve and is mainly used for preventing smoke from flowing backwards when a fire disaster occurs in a public flue, so that the smoke exhaust effect is achieved, a drainage ditch of an underground pipe gallery needs to collect water flow into a water collection pit, partial smoke can flow to other partitions along with the drainage ditch, the fire prevention and control effect of other partitions can be influenced, and the device capable of reducing smoke flowing and not influencing the drainage effect is needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses ground mesh lies in providing a fire wall smoke protection drainage device is prevented to utility tunnel to solve current escape canal when the conflagration takes place, can not reduce the problem of flue gas diffusion in the drainage.
In order to solve the above problem, the utility model discloses a following scheme realizes:
the utility model provides an underground utility tunnel prevents hot wall smoke prevention drainage device, includes the raceway, the free end of raceway is equipped with shutoff mechanism, shutoff mechanism includes upper cover plate, lower cover plate, first linkage unit and second linkage unit, the upper cover plate passes through the second linkage unit with the raceway and articulates, the lower cover plate passes through first linkage unit with the upper cover plate and articulates, the tip of raceway is equipped with the sealing strip.
The utility model discloses a principle and beneficial effect do:
when a fire disaster happens, smoke and water flow through the water pipe simultaneously, the smoke floats above the water pipe, the lower cover plate is flushed away by the water when the water flows through the outlet of the water pipe, the upper cover plate keeps immovable and keeps a plugging effect on the smoke, so that the smoke cannot diffuse out of the water pipe, the upper cover plate can also be flushed away when the water flow is large, the water permeability of the water pipe is ensured, and the sealing strips can reduce the smoke from overflowing out of the water pipe.
Furthermore, the first connecting unit comprises two first connecting shaft sleeves, a second connecting shaft sleeve and a first screw rod, the first connecting shaft sleeves and the second connecting shaft sleeves are sleeved on the first screw rod, the two first connecting shaft sleeves are positioned on two sides of the second connecting shaft sleeve, and the first connecting shaft sleeves are connected with the second connecting shaft sleeves through the first screw rod, so that the upper cover plate and the lower cover plate can rotate relative to each other by taking the first screw rod as an axis.
Furthermore, the second connection unit comprises two first sleeves, a second sleeve and a second screw, the first sleeves and the second sleeves are sleeved on the second screw, the two first sleeves are located on two sides of the second sleeve, and the first sleeves and the second sleeves are connected through the second screw, so that the upper cover plate and the sleeves can rotate relative to each other by taking the second screw as a shaft.
Furthermore, the two ends of the first screw rod are in threaded connection with first nuts, and the first nuts can limit the position of the first screw rod, so that the first screw rod is not easy to fall off.
Furthermore, the two ends of the second screw rod are connected with second nuts in a threaded manner, and the second nuts can limit the position of the second screw rod, so that the second screw rod is not easy to fall off.
Drawings
The invention is further explained below with reference to the drawings and the description.
Fig. 1 is a front view of a fire wall smoke prevention drainage device of an underground comprehensive pipe gallery;
fig. 2 is a schematic diagram of a plugging mechanism of the smoke-proof drainage device of the firewall of the underground comprehensive pipe rack;
FIG. 3 is a schematic view of an upper cover plate of a fire wall smoke prevention drainage device of an underground comprehensive pipe gallery;
figure 4 is the utility model relates to a fire wall smoke protection drainage device's lower apron schematic diagram is prevented to utility tunnel underground.
In the figure: 1-upper cover plate, 2-lower cover plate, 3-first screw, 4-second screw, 5-second nut, 6-first nut, 7-sealing strip, 8-water pipe, 9-first sleeve, 10-second sleeve, 11-first connecting shaft sleeve and 12-second connecting shaft sleeve.
Detailed Description
A fire wall smoke protection and drainage device for an underground comprehensive pipe rack as shown in figures 1 to 4; including raceway 8, the free end of raceway 8 is equipped with the shutoff mechanism, the tip glue of raceway 8 has sealing strip 7, the shutoff mechanism includes upper cover plate 1, lower cover plate 2, first linkage unit and second linkage unit, upper cover plate 1 and lower cover plate 2 are together articulated through first linkage unit, first linkage unit includes two first connecting axle sleeve 11, axle sleeve 12 and first screw rod 3 are connected to the second, two first connecting axle sleeve 11 welds the both sides at upper cover plate 1 lower extreme, axle sleeve 12 welds the upper end middle part at apron 2 down in the second, axle sleeve 12 can be blocked at the intermediate position of two first connecting axle sleeve 11 in the second, first connecting axle sleeve 11 and second connecting axle sleeve 12 overlap jointly on first screw rod 3, there is first nut 6 at the both ends of first screw rod 3 through threaded connection, use first screw rod 3 as the axle can make upper cover plate 1 and lower cover plate 2 rotate relatively.
The second connecting unit includes two first sleeves 9, second sleeve 10 and second screw rod 4, first sleeve 9 welds on the upper surface of 8 free ends of raceway, second sleeve 10 welds the central point of 1 upper end at the upper cover plate and puts, second sleeve 10 can block the intermediate position at two first sleeves 9, first sleeve 9 and second sleeve 10 overlap jointly on second screw rod 4, there is second nut 5 at the both ends of second screw rod 4 through threaded connection, use second screw rod 4 to make upper cover plate 1 and 8 relative rotations of raceway as the axle.
The implementation manner of the embodiment is as follows: when a fire disaster occurs, smoke and water flow in the water conveying pipe 8, when the fire disaster is small and the water yield is small, the smoke is not easy to dissolve in water and can float above the water, the smoke and the water flow can be distributed on the upper layer of the water conveying pipe 8 in the water conveying pipe 8, the lower layer of the water flow is water, when the water flow reaches an outlet position, the lower cover plate 2 is pushed by the water to be opened outwards by taking the first screw rod 3 as an axial direction, the upper cover plate 1 is kept still, the smoke is blocked in the water conveying pipe 8, after the water flow is discharged, the lower cover plate 2 can be automatically closed due to gravity, when the fire disaster is large, a lot of water flow exists, when the water flow is large, the smoke in the pipe is less, when the water flow reaches the outlet position of the water conveying pipe 8, the upper cover plate 1 and the lower cover plate 2 are opened simultaneously, the upper cover plate 1 rotates by taking the second screw rod 4 as an axial direction, the water yield of the water conveying pipe 8 is effectively increased, and when the water flow is finished, the upper cover plate 1 and the lower cover plate 2 are restored to the original position simultaneously, so that the tightness of the water conveying pipe 8 is guaranteed, and the smoke is effectively reduced.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top", "end", "one side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Also, unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and thus, for example, "connected" may be fixedly, detachably, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is to be understood that the above description is only one embodiment of the invention, and not all embodiments. Other modifications or equivalent substitutions made by those skilled in the art based on the embodiments of the present invention should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a fire wall smoke prevention drainage device is prevented to utility tunnel, includes raceway (8), its characterized in that, the free end of raceway is equipped with shutoff mechanism, shutoff mechanism includes upper cover plate (1), lower cover plate (2), first linkage unit and second linkage unit, upper cover plate (1) is articulated through the second linkage unit with raceway (8), lower cover plate (2) are articulated through first linkage unit with upper cover plate (1), the tip of raceway (8) is equipped with sealing strip (7).
2. The fire wall smoke prevention and drainage device for the underground comprehensive pipe gallery is characterized in that the first connecting unit comprises two first connecting shaft sleeves (11), a second connecting shaft sleeve (12) and a first screw (3), the first connecting shaft sleeves (11) and the second connecting shaft sleeves (12) are sleeved on the first screw (3), and the two first connecting shaft sleeves (11) are positioned on two sides of the second connecting shaft sleeve (12).
3. The fire wall smoke prevention and drainage device of an underground comprehensive pipe gallery is characterized in that the second connecting unit comprises two first sleeves (9), a second sleeve (10) and a second screw (4), the first sleeves (9) and the second sleeves (10) are sleeved on the second screw (4), and the two first sleeves (9) are positioned on two sides of the second sleeve (10).
4. The fire wall smoke prevention and drainage device for the underground comprehensive pipe gallery as claimed in claim 2, wherein the first screw (3) is in threaded connection with a first nut (6) at two ends.
5. The fire wall smoke prevention and drainage device of the underground comprehensive pipe gallery as claimed in claim 3, wherein a second nut (5) is connected to both ends of the second screw rod (4) in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221203184.8U CN217580479U (en) | 2022-05-19 | 2022-05-19 | Firewall smoke-proof drainage device of underground comprehensive pipe gallery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221203184.8U CN217580479U (en) | 2022-05-19 | 2022-05-19 | Firewall smoke-proof drainage device of underground comprehensive pipe gallery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217580479U true CN217580479U (en) | 2022-10-14 |
Family
ID=83553551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221203184.8U Active CN217580479U (en) | 2022-05-19 | 2022-05-19 | Firewall smoke-proof drainage device of underground comprehensive pipe gallery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217580479U (en) |
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2022
- 2022-05-19 CN CN202221203184.8U patent/CN217580479U/en active Active
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