CN103774741B - Bidirectional anti-explosion floor drain - Google Patents
Bidirectional anti-explosion floor drain Download PDFInfo
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- CN103774741B CN103774741B CN201410064731.2A CN201410064731A CN103774741B CN 103774741 B CN103774741 B CN 103774741B CN 201410064731 A CN201410064731 A CN 201410064731A CN 103774741 B CN103774741 B CN 103774741B
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- floor drain
- grate
- end opening
- explosion
- reading
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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 floor drain selected by 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 that is end opening, leakage body is provided with and inserts into the inner and the rib connected with end opening, also comprise a top 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 the gear that body inner side suitable for reading is provided with multiple radial direction, the bottom surface of gear is provided with inclined-plane, Cancellation Missed top edge is evenly provided with the convex of multiple radial direction corresponding with gear, convex upper surface is provided with the Cancellation Missed inclined-plane with the slopes which match kept off.At ordinary times during draining, Cancellation Missed is placed in Lou in body, and what convex on Cancellation Missed was placed in Lou body blocks face, proper drainage; During shutoff in wartime, rotate Cancellation Missed, make below the convex gear being placed in Lou body on Cancellation Missed, and continue firmly to rotate Cancellation Missed, by the inclined-plane of gear and the tight fit on Cancellation Missed inclined-plane, make Cancellation Missed bell jar cover Lou body rib, thus prevent shock wave from reaching end opening from the suitable for reading of floor drain.
But there are the following problems for such structure:
1, can only be unidirectional explosion-proof: owing to lacking effective fixation to the bell jar of blastproof strainer, when shock wave rushes at direction suitable for reading from the end opening of floor drain, when particularly nuclear explosive shock wave direction alternately changes (as positive/negative-pressure alternately occur time), its reverse explosion prevention function is unreliable;
2, displacement is little: bell-jar blastproof strainer, for maintaining water seal, reduces the flow section of draining, during as increased displacement, then need the size strengthening blastproof strainer, because floor drain must be placed in deck, thus the thickness of structure base slab may be increased, significantly increase construction costs;
3, airtight unreliable: its shock wave airtight be by Cancellation Missed bell jar inner surface rubber sheet gasket is pressed in Lou body end opening on 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 is slightly not parallel with Cancellation Missed bell jar inner surface time, will cause airtight not sternly, thus destroy the seal of whole preventive works;
4, flue gas anti-channeling: the blastproof strainer being installed on multi-layer underground engineering, when for the fire-fighting waste water of last layer is drained into lower one deck, owing to lacking moisturizing, floor drain water seal is often in desiccation, causes water seal to be lost efficacy.During breaking out of fire, there is the danger that fire smoke is 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, shock wave can be prevented from either direction through floor drain.
The technical solution realizing the object of the invention is: a kind of bidirectional explosion-proof floor drain, comprise with suitable for reading and the body of end opening, the grate with water hole, described body inner side suitable for reading is provided with multiple radial recess, described grate outer is provided with multiple radial protuberance, and described body is provided with the locking device below the recess that to be positioned by the protuberance on grate on body, floor drain being sealed.
Preferably, described locking device is the bolt be placed in by threaded engagement in the female portion.
As improvement, described grate establishes water hole close to edge, 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 effective shutoff at the mouth of a river omitted over the ground in printing by blind plate.
As further improvement, described body inner bottom part is plane, along not higher than described inner bottom part plane on described end opening, to increase flow section, improves drainability.
As further improvement, described end opening is provided with the sealing ring that diameter is greater than described lower internal diameter, is less than described blind plate diameter, to strengthen airtight reliability along outside.
As improvement, inside described end opening, be provided with floor drain core, to prevent flue gas anti-channeling at ordinary times.
The present invention compared with prior art, its remarkable advantage:
1, bidirectional explosion-proof: by locking device as built-in bolt fixes grate in body, reliably can prevent shock wave from positive and negative either direction through blastproof strainer;
2, reliably airtight: 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, and compared with the bell-jar blastproof strainer of same outer diameter, displacement increases; As identical displacement, then can the blastproof strainer of selection of small external diameter, not only reduce the volume of floor drain own, also can reduce the requirement to structure base slab thickness;
4, preventing flue gas anti-channeling at ordinary times: by increasing floor drain core, realize the mechanical seal of every day use without the need to water seal, stoping the anti-channeling of fire smoke or other gas between 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 (hull-borne) of the present invention.
Fig. 2 is bidirectional explosion-proof floor drain sectional view (sealed condition) of the present invention.
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.
Detailed description of the invention
As shown in Figure 1, bidirectional explosion-proof floor drain of the present invention, comprise body 1 and grate 2, body 1 is with suitable for reading 11 as water inlet and the end opening 12 as delivery port, grate 2 there is water hole 21, the gear leaking body inner side suitable for reading in multiple radial recess 13(and prior art is provided with) inside described body suitable for reading 11, described grate 2 outer is provided with the radial convex that in multiple radial protuberance 23(and prior art, Cancellation Missed top edge is corresponding with gear), described body 1 is provided with the locking device 3 below the recess 13 that to be positioned by the protuberance 23 on grate 2 on body 1, floor drain being sealed.
Described locking device 3 is the bolt be placed in by threaded engagement in the female portion 13.
As shown in Figure 1, during every day use, the protuberance 23 of grate 2 is placed on the recess 13 inside body suitable for reading 11, along suitable for reading 11 concordant or a little less than suitable for reading 11 with body on grate 2, and proper drainage.
As shown in Figure 2, when wartime uses, for preventing shock wave forward or backwards from, by floor drain, being moved down by floor drain grate 2, below the recess 13 that the protuberance 23 of grate 2 is placed in inside body suitable for reading 11, and with locking device 3, grate 2 is fixed.This locking device 3 can be the bolt being built in the female portion 13 by threaded engagement.During every day use, bolt upper end, not higher than edge on the recess 13 inside body suitable for reading 11, makes the protuberance 23 of grate 2 can steadily be placed on recess 13; Wartime, when using, the downward turn of bolt, the top of the protuberance 23 of grate 2 was withstood in its lower end, thus the bottom of grate 2 and body 1 end opening are sealed.Even if nuclear explosive shock wave direction alternately changes (as positive/negative-pressure alternately occur time), grate also can not be caused to seal and to loosen, impact sealing, ensure that forward, reverse explosion prevention function all firmly, reliable.
When being installed on the top board of air defense basement, when 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, shock wave can 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, collect wall, ground decontamination wastewater and by the sump drained into outside artesian water drainage pipe outside engineering oral area time, 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.
Locking device 3 is except above-mentioned built-in bolt, also can be the latch mechanism of other structure any, such as, the protuberance of built-in elastic parts and the matching mechanism of depressed part, or other locking device, its role is to prevent when shock wave rushes at direction suitable for reading from the end opening of floor drain, when particularly nuclear explosive shock wave direction alternately changes (as positive/negative-pressure alternately occur time), the bottom of grate 2 and body 1 end opening seal loosen.
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 usually no less than three.
As shown in Figure 3, as improvement, described grate 2 establishes water hole 21 close to edge, 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 structure is improved and is to establish water hole 21 with edge of the present invention, the floor drain grate that middle part is blind plate 22 instead of the floor drain grate of prior art band bell jar, draining at ordinary times is then born by the water hole 21 of blind plate 22 periphery and the gap between floor drain grate and body, wartime, blind plate 22 sealed the delivery port 12 of body, was similar to flanged plate shutoff.Simplify drain structure, decrease 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 improves further to be to eliminate on prior art floor drain body and inserts into the inner and the rib connected with end opening, replaces plane.Make floor drain drainage pattern become straight, reduce resistance of water drainage, increase the area of passage of whole bidirectional explosion-proof floor drain, improve the water passing capacity of floor drain.Compared with bell-jar blastproof strainer, as identical displacement, then can the bidirectional explosion-proof floor drain of the present invention of selection of small external diameter, not only reduce 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.Floor drain body height can be reduced further.
As shown in Figure 5, described end opening 12 is provided with the sealing ring 4 that diameter is greater than described end opening 12 internal diameter, is less than described blind plate 22 diameter along outside.Adopt and have the sealing ring more much bigger than rubber sheet gasket ductility, during 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, inside described end opening 12, floor drain core 5 is provided with.
Described floor drain core 5 upper strata is screen pack, and lower floor is gravity turnover panel.Under non-displacement condition, rely on counterweight that lower cover (turnover panel) is sealed drainage outlet; When there is ponding on ground, under hydraulic pressure effect, lower cover is opened, proper drainage.After having got rid of excess surface water, under the effect of counterweight, automatically close lower cover.
Increase floor drain core, instead of the water seal be made up of floor drain body rib and Cancellation Missed bell jar with mechanical seal, eliminate the moisturizing of every day use shortage and cause water seal to be lost efficacy, the danger that fire smoke is spread by blastproof strainer between levels.
Claims (3)
1. a bidirectional explosion-proof floor drain, comprise with (11) suitable for reading and the body (1) of end opening (12), the grate (2) with water hole (21), described body (11) suitable for reading inner side is provided with multiple radial recess (13), described grate (2) outer is provided with multiple radial protuberance (23), and described body (1) is provided with recess (13) below be positioned on body (1) by the protuberance (23) on grate (2) makes floor drain seal the locking device (3) of locking; Described locking device (3) is the bolt be placed in by threaded engagement in the female portion (13); Described grate (2) establishes water hole (21) close to edge, 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);
It is characterized in that: described body (1) inner bottom part (14) is plane, the upper edge of described end opening (12) is not higher than described inner bottom part (14) plane.
2. bidirectional explosion-proof floor drain according to claim 1, is characterized in that: on described end opening (12), be provided with diameter along outside be greater than described end opening (12) internal diameter, be less than the sealing ring (4) of described blind plate (22) diameter.
3. according to the bidirectional explosion-proof floor drain one of claim 1 or 2 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 CN103774741A (en) | 2014-05-07 |
| CN103774741B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
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| CN103774741A (en) | 2014-05-07 |
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Granted publication date: 20150603 Termination date: 20180226 |