CN2743285Y - Manhole lid - Google Patents
Manhole lid Download PDFInfo
- Publication number
- CN2743285Y CN2743285Y CN 200420109362 CN200420109362U CN2743285Y CN 2743285 Y CN2743285 Y CN 2743285Y CN 200420109362 CN200420109362 CN 200420109362 CN 200420109362 U CN200420109362 U CN 200420109362U CN 2743285 Y CN2743285 Y CN 2743285Y
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- CN
- China
- Prior art keywords
- retainer
- valve disc
- guide
- valve
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to a container safety cover of man-hole which is particularly applicable to an oil bunker, oil station and other locations having container facilities, comprising the cover plate of a man-hole on which a filling port is provided, the filling port is provided with a filling cover in which a respiration valve is arranged and on which a top board and a lower platen are arranged. The end of the top board and the lower board is hinged with the both corresponding ends of the cover plate of the man-hole respectively, and the top board and the lower board are jointed by a locking device. A compressed spring is arranged between the lower board and the filling cover, used for supporting the lower board and the filling cover. A lower board flexible die cushion is arranged between the cover plate of the man-hole and the lower board, the open end under the respiration valve body is connected with an anti-back flow mechanism, which avoids workers from injuring for the quick upturning of the lower board and the top board because of the spring action of the supporting compressed spring between the lower board and the filling cover and avoids the liquid from polluting environment by flowing out from the air outlet of the respiration valve easily when a tank dumps. The utility model has the advantages of simple structure, safety and convenient use.
Description
Technical field
The utility model relates to a kind of storage tank safety device manhole cover, is meant especially to be applicable to that oil depot, oil station, chemical pharmaceutical industry etc. possess the place of storage tank facility.
Background technology
At present, store the storage tank of clean cargo, chemical, chemical liquid etc., in storage tank, fill fuel oil, raw material for convenience, keep the balance of tank inner pressure, avoid breaking of storage tank, guarantee the safe handling of storage tank, manhole cover becomes the safety device of the indispensability of various storage tanks.
Existing manhole cover has generally comprised manhole plate, on manhole plate, have and fill mouth, fill the lid that fills that band urgent ventilation function is installed on the mouth, fill to cover and be built-in with breathing valve, breathing valve includes valve body and is arranged at body cavity and the valve body respiratory cavity is arranged to the pressure valve disc device in external respiration chamber and internal respiration chamber, pressure valve disc device includes the pressure valve disc, the axis of guide and valve disc sealing member, fill the side of covering and be provided with top board and lower platen, on, one end of lower platen is hinged on cooresponding two ends on the manhole plate respectively, on, lower platen connects by blocking device, and lower platen and filling between the lid by bolted connection and by stage clip supports.In filling the manually opened process of lid, when the staff opens upper and lower pressing plate blocking device, because lower platen and the elastic force effect that fills between the lid support stage clip, lower platen and top board are turned on rapidly, the staff is under the situation that does not perform expeditious measures, will be easy to come to harm, and complex operation.Moreover the breathing valve in the existing manhole cover does not have the anti-backflow device of setting, and when tank body was tumbled, clean cargo, chemical flowed out from the breathing valve air extractor duct easily, cause great economic loss, have polluted environment again.
Summary of the invention
The utility model is in order to solve the weak point that above-mentioned prior art exists, provide a kind of and flicked the manhole cover of buffer gear with lower platen, it is simple in structure, and is easy to use, safe, and be provided with anti-backflow mechanism in the manhole cover breathing valve, liquid leaks when having avoided tank body to tumble.
For achieving the above object, the utility model adopts following scheme: a kind of manhole cover, include manhole plate, on manhole plate, have and fill mouth, fill to be equipped with on the mouth and fill lid, fill to cover and be built-in with breathing valve, breathing valve includes valve body and is arranged at body cavity and the valve body respiratory cavity is arranged to the pressure valve disc device in external respiration chamber and internal respiration chamber, pressure valve disc device includes the pressure valve disc, the axis of guide and valve disc sealing member, fill the side of covering and be provided with top board and lower platen, on, one end of lower platen is hinged on cooresponding two ends on the manhole plate respectively, on, lower platen connects by blocking device, lower platen and filling between the lid by stage clip supports, and is provided with lower platen between described manhole plate and the lower platen and flicks buffer gear.
The utility model further is set to: described shellproof mechanism includes the lower end and is hinged on anti-slip hook on the manhole plate, with the barb free-running fit of anti-slip hook and be fixedly connected on the small clevis pin with head on lower platen one end and be connected on anti-slip hook and the manhole plate, make the big torsion spring of anti-slip hook one side near small clevis pin with head, wherein anti-slip hook one side extended spot is provided with shifting shaft.
Described breathing valve valve body lower open end is connected with anti-backflow mechanism, and it includes with valve body bonded assembly valve seat, is arranged on the spheroid in the valve seat cavity volume and can constitutes the seal receptacle that is sealed and matched with the spheroid circumferential surface.
Described seal receptacle is the Gask-O-Seal that is arranged between pressure valve disc device and the valve seat, and described spheroid is the semicircle spheroid.
Pressure valve disc in the described pressure valve disc device is fixedly connected on the lower end of the axis of guide, the axis of guide is arranged in the sliding chamber, location of retainer, small pressure spring is socketed on the axis of guide, and an end is fixedly connected on the upper end of the axis of guide, the other end is arranged on the retainer, be provided with the valve disc sealing member between pressure valve disc and the retainer, be provided with boss in the valve body openings end, be provided with big stage clip between boss and the retainer upper surface, the retainer lower surface closely cooperates by big stage clip and sealing shroud upper surface formation.
Be provided with the shoulder rank in the valve body of the corresponding position, retainer lower surface in the described pressure valve disc device, sealing shroud constitutes clamping matching by the shoulder rank, is provided with locating bush between sealing shroud and the valve seat, and Gask-O-Seal is between locating bush and valve seat.
The beneficial effects of the utility model are: the utility model is by being improved on original manhole cover, between manhole plate and lower platen, be provided with lower platen and flick buffer gear, open to fill the staff and play buffer action when covering, avoided because lower platen and the elastic force effect that fills support stage clip between the lid, lower platen and top board are turned on rapidly, and cause the staff injured, it is simple in structure, easy to use, safety, and the breathing valve valve body lower end in being arranged on manhole cover is provided with anti-backflow mechanism, when having prevented that tank body from tumbling, liquid flows out from the breathing valve air extractor duct easily, contaminated environment has been avoided causing unnecessary economic loss to country.
Below in conjunction with drawings and Examples the utility model is further specified.
Description of drawings
Fig. 1 is the utility model example structure scheme drawing;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the shellproof hook structure scheme drawing of the utility model;
Fig. 4 is the utility model breathing valve structural representation.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model embodiment adopts a kind of manhole cover, include manhole plate 1, on manhole plate 1, have and fill mouth 11, filling to be equipped with on the mouth 11 is with filling of urgent ventilation function to cover 2, fill to cover and be built-in with breathing valve 3 on 2, breathing valve 3 includes valve body 31 and is arranged at valve body 31 inner chambers and valve body 31 respiratory cavitys is arranged to the pressure valve disc device 32 in external respiration chamber 31 1 and internal respiration chamber 312, pressure valve disc device 32 includes pressure valve disc 321, the axis of guide 325 and valve disc sealing member 322, fill and cover 2 tops and be provided with top board 41 and lower platen 42, on, lower platen 41, an end of 42 is hinged on cooresponding two ends on the manhole plate 1 respectively, on, lower platen 41,42 by blocking device 43 connections, lower platen 42 and filling supports by bolted connection and by stage clip 5 between covering 2, make fill cover 2 with fill mouthfuls 11 and be sealed and matched, be provided with lower platen 42 between described manhole plate 1 and the lower platen 42 and flick buffer gear 6.
The utility model further is set to, described shellproof mechanism 6 includes the lower end and is hinged on anti-slip hook 61 on the manhole plate 1, with the barb free-running fit of anti-slip hook 61 and be fixedly connected on the small clevis pin with head 62 on lower platen 42 1 ends and be connected on anti-slip hook 61 and the manhole plate 1, make the big torsion spring 63 of anti-slip hook 61 1 sides near small clevis pin with head 62, wherein anti-slip hook 61 1 side extended spots are provided with shifting shaft 611.
Certainly the buffer gear 6 that flicks of the present utility model also can be hinged on anti-slip hook 61 on the lower platen 42 for the upper end, with the barb free-running fit of anti-slip hook 61 and be fixedly connected on the small clevis pin with head 62 on the manhole plate 1 and be connected on anti-slip hook 61 and the lower platen 42, make the big torsion spring 63 of anti-slip hook 61 1 sides near small clevis pin with head 62, wherein be provided with shifting shaft 611 or on manhole plate 1, be fixedly connected with chain at anti-slip hook 61 1 side extended spots, chain can realize also that by being locked on the lower platen lower platen 42 flicks the effect of buffering.
Described breathing valve 3 valve bodies 31 lower open ends are connected with anti-backflow mechanism 33, and it includes with valve body 31 bonded assembly valve seats 331, is arranged on the spheroid 333 in valve seat 331 cavity volumes 332 and can constitutes the seal receptacle that is sealed and matched with spheroid 333 circumferential surfaces.
The utility model further is set to, and described seal receptacle is the Gask-O-Seal 334 that is arranged between pressure valve disc device 32 and the valve seat 331, and certainly Gask-O-Seal 334 can be for independently, also can be for valve disc sealing member 322 all-in-one-piece being set.Described spheroid 333 is the semicircle spheroid, and the bottom surface of semicircle spheroid 333 offers cavity 335.
Pressure valve disc 321 in the described pressure valve disc device 32 is fixedly connected on the lower end of the axis of guide 325 by nut, the axis of guide 325 is arranged in the sliding chamber 328, location of retainer 323, small pressure spring 326 is socketed on the axis of guide 325, and an end is fixedly connected on the upper end of the axis of guide 325 by spring cotter 35, the other end is arranged on the retainer 323, be provided with valve disc sealing member 322 between pressure valve disc 321 and the retainer 323, be provided with boss 313 in valve body 31 open ends, be provided with big stage clip 327 between boss 313 and retainer 323 upper surfaces, retainer 323 lower surfaces closely cooperate by big stage clip 327 and sealing shroud 324 upper surfaces formation.
Be provided with shoulder rank 314 in the valve body 31 of the corresponding position, retainer 323 lower surface in the described pressure valve disc device 32, sealing shroud 324 constitutes clamping matching by shoulder rank 314, be provided with locating bush 34 between sealing shroud 324 and the valve seat 331, be provided with O RunddichtringO 36 between sealing shroud 324 and the locating bush 34, Gask-O-Seal 334 is between locating bush 34 and valve seat 331.
The utility model fills the opening process of lid: the staff opens, lower platen 41,42 blocking device 43, and lift top board 41, lower platen 42 is turned on jointed shaft by the effect of stage clip 5 elastic force, and drive is fixedly connected on small clevis pin with head 63 edge and the anti-slip hook 61 free-running fit side shiftings on lower platen 42 1 ends, after the barb of anti-slip hook 61 hooks small clevis pin with head, lower platen 42 stops upset, make the barb of anti-slip hook 61 break away from small clevis pin with head 62 by the shifting shaft 611 that is arranged on anti-slip hook 61 1 side extended spot settings again, lift lower platen then, can open like this and be connected filling of lower platen 42 belows by bolt and stage clip 5 and cover 2, can cover 2 and in storage tank, fill clean cargo by filling, chemical etc.
The utility model adopts the effect of breathing valve 3: when the petrol storage tank oil-feed, the storage tank inner air pressure increases, when being malleation, by pressure valve disc 321 withstand retainer 323 with valve body 31 inwalls as guide rail, up slide, make retainer 323 leave sealing shroud 324, air is discharged external respiration chamber 311 by internal respiration chamber 312, make it a jar internal gas pressure and reach balance, at last by under the effect that is arranged on big stage clip 327 pressure between boss 313 and retainer 323 upper surfaces, make retainer 323 be returned to original position, be sealed and matched, finish the expiration function with sealing shroud 324 formations.
When petrol storage tank is drained the oil, the storage tank inner air pressure reduces, when being negative pressure, outside air enters external respiration chamber 311 and makes pressure valve disc 321 open air inlet automatically, by being installed in the axis of guide 325 on the pressure valve disc 321, the axis of guide 325 is slided chamber 328 and is driven pressure valve disc 321 to lower slider along the location on the retainer 35, gas enters tank body from internal respiration chamber 312, make it a jar internal gas pressure and reach balance, at last by under the effect of small pressure spring 326, make pressure valve disc 321 be returned to original position, be sealed and matched, finish air-breathing function with valve disc sealing member 322 formations.
When petrol storage tank is toppled over, lift off a seat 331 cavity volume 332 bottoms, semicircle spheroid 333 lower surfaces, because gas or liquid are in the pressure effect of spheroid 333 lower surface cavitys 335, spheroid 333 is moved, and make spheroid 333 circumferential surfaces and be arranged on locating bush 34 and valve seat 331 between Gask-O-Seal 334 constitute and closely cooperate, seal valve port, avoided liquid in breathing valve, to flow out.Under the normal circumstances, semicircle spheroid 333 is in the valve bottom, does not influence normal inlet, outlet.
Claims (8)
1, a kind of manhole cover, include manhole plate, on manhole plate, have and fill mouth, fill to be equipped with on the mouth and fill lid, fill to cover and be built-in with breathing valve, breathing valve includes valve body and is arranged at body cavity and the valve body respiratory cavity is arranged to the pressure valve disc device in external respiration chamber and internal respiration chamber, pressure valve disc device includes the pressure valve disc, the axis of guide and valve disc sealing member, fill the side of covering and be provided with top board and lower platen, on, one end of lower platen is hinged on cooresponding two ends on the manhole plate respectively, on, lower platen connects by blocking device, lower platen and filling between the lid by stage clip supports, and it is characterized in that: be provided with lower platen (42) between described manhole plate (1) and the lower platen (42) and flick buffer gear (6).
2, a kind of manhole cover according to claim 1, it is characterized in that: described shellproof mechanism (6) includes the lower end and is hinged on anti-slip hook (61) on the manhole plate (1), with the barb free-running fit of anti-slip hook (61) and be fixedly connected on the small clevis pin with head (62) on lower platen (42) one ends and be connected on anti-slip hook (61) and the manhole plate (1), make the big torsion spring (63) of anti-slip hook (61) one sides near small clevis pin with head (62), wherein anti-slip hook (61) one side extended spots are provided with shifting shaft (611).
3, a kind of manhole cover according to claim 1 and 2, it is characterized in that: described breathing valve (3) valve body (31) lower open end is connected with anti-backflow mechanism (33), and it includes with valve body (31) bonded assembly valve seat (331), is arranged on the spheroid (333) in valve seat (331) cavity volume (332) and can constitutes the seal receptacle that is sealed and matched with spheroid (333) circumferential surface.
4, a kind of manhole cover according to claim 3 is characterized in that: described seal receptacle is for being arranged on the Gask-O-Seal (334) between pressure valve disc device (32) and the valve seat (331), and described spheroid (333) is the semicircle spheroid.
5, according to claim 1 or 2 or 4 described a kind of manhole covers, it is characterized in that: the pressure valve disc (321) in the described pressure valve disc device (32) is fixedly connected on the lower end of the axis of guide (325), the axis of guide (325) is arranged in the sliding chamber, location (328) of retainer (323), small pressure spring (326) is socketed on the axis of guide (325), and an end is fixedly connected on the upper end of the axis of guide (325), the other end is arranged on the retainer (323), be provided with valve disc sealing member (322) between pressure valve disc (321) and the retainer (323), be provided with boss (313) in valve body (31) open end, be provided with big stage clip (327) between boss (313) and retainer (323) upper surface, retainer (323) lower surface closely cooperates by big stage clip (327) and sealing shroud (324) upper surface formation.
6, a kind of manhole cover according to claim 3, it is characterized in that: the pressure valve disc (321) in the described pressure valve disc device (32) is fixedly connected on the lower end of the axis of guide (325), the axis of guide (325) is arranged in the sliding chamber, location (328) of retainer (323), small pressure spring (326) is socketed on the axis of guide (325), and an end is fixedly connected on the upper end of the axis of guide (325), the other end is arranged on the retainer (323), be provided with valve disc sealing member (322) between pressure valve disc (321) and the retainer (323), be provided with boss (313) in valve body (31) open end, be provided with big stage clip (327) between boss (313) and retainer (323) upper surface, retainer (323) lower surface closely cooperates by big stage clip (327) and sealing shroud (324) upper surface formation.
7, a kind of manhole cover according to claim 5, it is characterized in that: be provided with shoulder rank (314) in the valve body (31) of retainer (323) corresponding position, lower surface in the described pressure valve disc device (32), sealing shroud (324) constitutes clamping matching by shoulder rank (314), be provided with locating bush (34) between sealing shroud (324) and the valve seat (331), Gask-O-Seal (334) is positioned between locating bush (34) and the valve seat (31).
8, a kind of manhole cover according to claim 6, it is characterized in that: be provided with shoulder rank (314) in the valve body (31) of retainer (323) corresponding position, lower surface in the described pressure valve disc device (2), sealing shroud (324) constitutes clamping matching by shoulder rank (314), be provided with locating bush (34) between sealing shroud (324) and the valve seat (331), Gask-O-Seal (334) is positioned between locating bush (34) and the valve seat (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109362 CN2743285Y (en) | 2004-11-30 | 2004-11-30 | Manhole lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109362 CN2743285Y (en) | 2004-11-30 | 2004-11-30 | Manhole lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2743285Y true CN2743285Y (en) | 2005-11-30 |
Family
ID=35633304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109362 Expired - Fee Related CN2743285Y (en) | 2004-11-30 | 2004-11-30 | Manhole lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2743285Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347890A (en) * | 2016-10-31 | 2017-01-25 | 中车长江车辆有限公司 | Manhole device |
-
2004
- 2004-11-30 CN CN 200420109362 patent/CN2743285Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347890A (en) * | 2016-10-31 | 2017-01-25 | 中车长江车辆有限公司 | Manhole device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051130 Termination date: 20111130 |