CN103774741A - Bidirectional anti-explosion floor drain - Google Patents
Bidirectional anti-explosion floor drain Download PDFInfo
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- CN103774741A CN103774741A CN201410064731.2A CN201410064731A CN103774741A CN 103774741 A CN103774741 A CN 103774741A CN 201410064731 A CN201410064731 A CN 201410064731A CN 103774741 A CN103774741 A CN 103774741A
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- floor drain
- grate
- end opening
- explosion
- bidirectional explosion
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Abstract
The invention discloses a bidirectional anti-explosion floor drain, comprising a main body with an upper opening and a lower opening, and a grate with water holes, wherein the inner side of the upper opening of the main body is provided with a plurality of radial concave parts, the outer edge of the grate is provided with a plurality of radial convex parts, and the main body is provided with a locking device for positioning the convex parts on the grate into the concave parts on the main body and then sealing the floor drain. The bidirectional anti-explosion floor drain provided by the invention is simple in structure and reliable in seal, and can prevent being penetrated by shock wave from any direction.
Description
Technical field
The invention belongs to floor drain technical field, particularly a kind of positive and negative two to the bidirectional explosion-proof floor drain all with explosion prevention function.
Background technology
The selected floor drain in position that may be subject to shock wave in preventive works should be blastproof strainer, and therefore blastproof strainer is widely used in the excess surface water eliminating of all kinds of preventive works.
Existing blastproof strainer adopts bell-jar structure, as Chinese utility model patent " the blastproof strainer " (patent No.: ZL95238691.7, the day for announcing: 1997.11.12), comprise with suitable for reading and leakage body end opening, leak body and be provided with the rib that inserts into the inner and join with end opening, also comprise that a top is for there being water hole, bottom is the Cancellation Missed of nearly hemispherical Shell bell jar, Cancellation Missed is placed in Lou in body, its underpart covers on the top of rib, leak body inner side suitable for reading and be provided with multiple gears radially, the bottom surface of gear is provided with inclined-plane, Cancellation Missed top edge is evenly provided with multiple radially protruding corresponding with gear, protruding upper surface is provided with the Cancellation Missed inclined-plane matching with the inclined-plane keeping off.When draining at ordinary times, Cancellation Missed is placed in Lou in body, the protruding Lou face of blocking of body that is placed on Cancellation Missed, normal draining; When wartime shutoff, rotate Cancellation Missed, protruding on Cancellation Missed is placed in below the gear of body with Louing, and continues firmly to rotate Cancellation Missed, by the inclined-plane that keeps off and the tight fit on Cancellation Missed inclined-plane, make Cancellation Missed bell jar cover Lou body rib, thereby prevent suitable for reading the reach end opening of shock wave from floor drain.
But there are the following problems for such structure:
1, can only be unidirectional explosion-proof: due to the bell jar of blastproof strainer is lacked to effective fixation, in the time that shock wave rushes at direction suitable for reading from the end opening of floor drain, when particularly nuclear explosive shock wave direction alternately changes (while alternately appearance as positive/negative-pressure), its reverse explosion prevention function is unreliable;
2, displacement is little: bell-jar blastproof strainer, for maintaining water seal, has reduced the flow section of draining, while increasing displacement as need, need to strengthen the size of blastproof strainer, because floor drain must be placed in deck, thereby may increase the thickness of structure base slab, significantly increase construction costs;
3, airtight unreliable: the airtight of its shock wave is by Cancellation Missed bell jar inner surface, rubber sheet gasket to be pressed in to Lou the upper of body end opening to realize along edge.The ductility of rubber sheet gasket is poor, when leak body end opening upper along processing slightly irregular or its end face and Cancellation Missed bell jar inner surface when slightly not parallel, will cause airtight not tight, thereby destroy the seal of whole preventive works;
4, flue gas anti-channeling: be installed on the blastproof strainer of multi-layer underground engineering, when when the fire-fighting waste water of last layer is drained into lower one deck, owing to lacking moisturizing, floor drain water seal, often in desiccation, causes water seal to be lost efficacy.When breaking out of fire, the danger that exists fire smoke to spread between levels by existing blastproof strainer.
Summary of the invention
The object of the present invention is to provide a kind of bidirectional explosion-proof floor drain, can prevent that shock wave from passing floor drain from either direction.
The technical solution that realizes the object of the invention is: a kind of bidirectional explosion-proof floor drain, comprise with the body of suitable for reading and end opening, with the grate of water hole, described body inner side suitable for reading is provided with multiple radially recess, described grate outer is provided with multiple radially protuberances, and described body is provided with the protuberance on grate is positioned to the locking device that the recess below on body seals floor drain.
Preferably, described locking device is to be placed in the bolt in the female portion by threaded engagement.
As improvement, described grate approaches edge and establishes water hole, and middle part is blind plate, and the diameter of described blind plate is greater than the internal diameter of floor drain body end opening, to guarantee that blind plate omits effective shutoff at the mouth of a river over the ground in printing.
As further improvement, described body inner bottom part is plane, on described end opening, along not higher than described inner bottom part plane, to increase flow section, improves drainability.
As further improvement, on described end opening, be provided with the sealing ring that diameter is greater than described end opening internal diameter, is less than described blind plate diameter along outside, to strengthen airtight reliability.
As improvement, be provided with floor drain core in described end opening inner side, to prevent flue gas anti-channeling at ordinary times.
The present invention compared with prior art, its remarkable advantage:
1, bidirectional explosion-proof: in body, can reliably prevent that shock wave from passing blastproof strainer from positive and negative either direction by locking device grate as fixing in built-in bolt;
2, airtight reliable: to adopt and there is the sealing ring more much bigger than rubber sheet gasket ductility, make the sealing between Cancellation Missed and leakage body more reliable.
3, drainability is strong: adopt straight-through structure, compared with the bell-jar blastproof strainer of same outer diameter, displacement increases; As identical displacement, blastproof strainer that can selection of small external diameter, not only reduces the volume of floor drain own, also can reduce the requirement to structure base slab thickness;
4, prevent flue gas anti-channeling at ordinary times: by increasing floor drain core, realize the mechanical seal of every day use without water seal, the anti-channeling of fire smoke or other gas between prevention levels.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is bidirectional explosion-proof floor drain sectional view of the present invention (hull-borne).
Fig. 2 is bidirectional explosion-proof floor drain sectional view of the present invention (sealed condition).
Fig. 3 is grate structural representation.
Fig. 4 is bidirectional explosion-proof floor drain top view of the present invention.
Fig. 5 is sealing ring detail drawing in Fig. 1.
Fig. 6 is the bidirectional explosion-proof floor drain sectional view (hull-borne) with floor drain core.
In figure: 1 body, 11 is suitable for reading, 12 end openings, 13 recess, 14 inner bottom parts, 2 grates, 21 water holes, 22 blind plates, 23 protuberances, 3 locking devices, 4 sealing rings, 5 floor drain cores.
The specific embodiment
As shown in Figure 1, bidirectional explosion-proof floor drain of the present invention, comprise body 1 and grate 2, body 1 with as water inlet suitable for reading 11 and as the end opening 12 of delivery port, on grate 2, there is water hole 21, it is the gear that leaks body inner side suitable for reading in prior art that described body 11 inner sides suitable for reading are provided with multiple radially recess 13(), it is the Cancellation Missed top edge radial convex corresponding with gear in prior art that described grate 2 outers are provided with multiple radially protuberance 23(), described body 1 is provided with the protuberance on grate 2 23 is positioned to the locking device 3 that recess 13 belows on body 1 seal floor drain.
Described locking device 3 is for to be placed in the bolt in the female portion 13 by threaded engagement.
As shown in Figure 1, when every day use, the protuberance 23 of grate 2 is placed on the recess 13 of body 11 inner sides suitable for reading, on grate 2 along suitable for reading 11 concordant or a little less than suitable for reading 11 with body, normal draining.
As shown in Figure 2, wartime is while use, for preventing that shock wave, by floor drain, moves down floor drain grate 2 forward or backwards, makes the protuberance 23 of grate 2 be placed in recess 13 belows of body 11 inner sides suitable for reading, and grate 2 fixed with locking device 3.This locking device 3 can be the bolt that is built in the female portion 13 by threaded engagement.When every day use, bolt upper end, not higher than edge on the recess 13 of body 11 inner sides suitable for reading, can steadily be placed on recess 13 protuberance 23 of grate 2; Wartime is while use, the downward turn of bolt, and the top of the protuberance 23 of grate 2 is withstood in its lower end, thereby makes bottom and the body 1 end opening sealing of grate 2.Even if nuclear explosive shock wave direction alternately changes (while alternately appearance as positive/negative-pressure), can not cause grate to seal loosening yet, impact sealing, has guaranteed that forward, reverse explosion prevention function are all firmly, reliably.
When being installed on the top board of air defense basement, while collecting the ground fire-fighting waste water of last layer underground construction, the installation site of blastproof strainer can be subject to the positive acting of shock wave, shock wave is (cover plate) from positive acting to floor drain grate, cover plate shutoff is in outfall, be similar to flanged plate shutoff, can shock wave play effective protective action.
When blastproof strainer is installed on the dirt pocket of civil air defense constructions and installations oral area, gas-filtering room, gas defence passage, the positions such as airtight passage, when collecting the decontamination wastewater on wall, ground and draining into the sump outside engineering oral area outward by artesian water drainage pipe, shock wave is (cover plate) from backward-acting to floor drain grate.Because locking device 3(is as bolt) pressuring action, cover plate can carry out effective shutoff protection to outfall, guarantees seal.
The present invention both can be used for the improvement of existing bell-jar blastproof strainer, also can be used for the blastproof strainer of other form as shown in Figure 1.As prior art, recess 13 is corresponding with the magnitude setting of protuberance 23, is conventionally no less than three.
As shown in Figure 3, as improvement, described grate 2 approaches edge and establishes water hole 21, and middle part is blind plate 22, and the diameter of described blind plate 22 is greater than the internal diameter of end opening 12.
This architecture advances is to establish water hole 21 with edge of the present invention, middle part is the floor drain grate that the floor drain grate of blind plate 22 has replaced prior art band bell jar, draining at ordinary times is born by the gap between water hole 21 and floor drain grate and the body of blind plate 22 peripheries, wartime, blind plate 22 sealed the delivery port 12 of body, was similar to flanged plate shutoff.Simplify drain structure, reduced floor drain body height.
As shown in Figure 1, 2, as the further improvement of such scheme, described body 1 inner bottom part 14 be with on end opening 12 along concordant plane.This programme further improve be to cancel on prior art floor drain body, insert into the inner and with the rib that end opening joins, replace plane.Make floor drain drainage pattern become straight, reduced resistance of water drainage, strengthened the area of passage of whole bidirectional explosion-proof floor drain, improved the water passing capacity of floor drain.Compared with bell-jar blastproof strainer, as identical displacement, bidirectional explosion-proof floor drain of the present invention that can selection of small external diameter, not only reduces the volume of floor drain own, also can reduce the requirement to structure base slab thickness.Grate 2 and body end opening 12 are sealed more easy.Can further reduce floor drain body height.
As shown in Figure 5, on described end opening 12, be provided with the sealing ring 4 that diameter is greater than described end opening 12 internal diameters, is less than described blind plate 22 diameters along outside.Employing has the sealing ring more much bigger than rubber sheet gasket ductility, and when sealed condition, the sealing ring 4 along outside on the blind plate of floor drain grate and end opening 12 forms reliable, good sealing.
As shown in Figure 6, be provided with floor drain core 5 in described end opening 12 inner sides.
Described floor drain core 5 upper stratas are screen pack, and lower floor is gravity turnover panel.Under non-displacement condition, rely on counterweight that lower cover (turnover panel) is sealed to drainage outlet; In the time that there is ponding on ground, under Water Pressure, lower cover is opened, normal draining.When having got rid of after excess surface water, under the effect of counterweight, automatically close lower cover.
Increase floor drain core, replaced the water seal being formed by floor drain body rib and Cancellation Missed bell jar with mechanical seal, eliminated the moisturizing of every day use shortage and caused water seal to be lost efficacy, the danger that fire smoke spreads between levels by blastproof strainer.
Claims (6)
1. a bidirectional explosion-proof floor drain, comprise with the body (1) of (11) suitable for reading and end opening (12), with the grate (2) of water hole (21), described body (11) suitable for reading inner side is provided with multiple radially recess (13), described grate (2) outer is provided with multiple radially protuberances (23), it is characterized in that: described body (1) is provided with the protuberance (23) on grate (2) is positioned to the locking device (3) that recess (13) below on body (1) locks floor drain sealing.
2. bidirectional explosion-proof floor drain according to claim 1, is characterized in that: described locking device (3) is for being placed in the bolt in the female portion (13) by threaded engagement.
3. bidirectional explosion-proof floor drain according to claim 1, is characterized in that: described grate (2) approaches edge and establishes water hole (21), and middle part is blind plate (22), and the diameter of described blind plate (22) is greater than the internal diameter of end opening (12).
4. bidirectional explosion-proof floor drain according to claim 3, is characterized in that: described body (1) inner bottom part (14) is plane, and the upper edge of described end opening (12) is not higher than described inner bottom part (14) plane.
5. bidirectional explosion-proof floor drain according to claim 4, is characterized in that: be above provided with at described end opening (12) sealing ring (4) that diameter is greater than described end opening (12) internal diameter, is less than described blind plate (22) diameter along outside.
6. according to the bidirectional explosion-proof floor drain one of claim 1 to 5 Suo Shu, it is characterized in that: be provided with floor drain core (5) in described end opening (12) inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410064731.2A CN103774741B (en) | 2014-02-26 | 2014-02-26 | Bidirectional anti-explosion floor drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410064731.2A CN103774741B (en) | 2014-02-26 | 2014-02-26 | Bidirectional anti-explosion floor drain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103774741A true CN103774741A (en) | 2014-05-07 |
| CN103774741B CN103774741B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410064731.2A Expired - Fee Related CN103774741B (en) | 2014-02-26 | 2014-02-26 | Bidirectional anti-explosion floor drain |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297874A (en) * | 2014-06-03 | 2016-02-03 | 支永光 | Bidirectional self-closed anti-explosion floor drain |
| CN109264885A (en) * | 2018-09-13 | 2019-01-25 | 盐城项远环保设备有限公司 | A kind of dyeing waste water pretreatment unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339644Y (en) * | 1997-09-17 | 1999-09-22 | 宜兴市人防设备厂 | Blast-proof toxicity-proof floor drain |
| DE202012004881U1 (en) * | 2012-05-16 | 2013-08-19 | Viega Gmbh & Co. Kg | Floor drain with a cover for holding a tile |
| CN103541411A (en) * | 2013-11-11 | 2014-01-29 | 中国人民解放军总参谋部工程兵第四设计研究院 | Explosion-proof anti-poison odor-resistant multifunctional floor drain |
| CN203716272U (en) * | 2014-02-26 | 2014-07-16 | 杜青 | Both-way anti-explosion floor drain |
-
2014
- 2014-02-26 CN CN201410064731.2A patent/CN103774741B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339644Y (en) * | 1997-09-17 | 1999-09-22 | 宜兴市人防设备厂 | Blast-proof toxicity-proof floor drain |
| DE202012004881U1 (en) * | 2012-05-16 | 2013-08-19 | Viega Gmbh & Co. Kg | Floor drain with a cover for holding a tile |
| CN103541411A (en) * | 2013-11-11 | 2014-01-29 | 中国人民解放军总参谋部工程兵第四设计研究院 | Explosion-proof anti-poison odor-resistant multifunctional floor drain |
| CN203716272U (en) * | 2014-02-26 | 2014-07-16 | 杜青 | Both-way anti-explosion floor drain |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297874A (en) * | 2014-06-03 | 2016-02-03 | 支永光 | Bidirectional self-closed anti-explosion floor drain |
| CN105297874B (en) * | 2014-06-03 | 2017-11-28 | 邸汶 | A kind of two-way self-closing blastproof strainer |
| CN109264885A (en) * | 2018-09-13 | 2019-01-25 | 盐城项远环保设备有限公司 | A kind of dyeing waste water pretreatment unit |
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| Publication number | Publication date |
|---|---|
| CN103774741B (en) | 2015-06-03 |
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Granted publication date: 20150603 Termination date: 20180226 |