CN2677454Y - Manhole cover, handhole cover capable of preventing the cover moving and its base and opener - Google Patents
Manhole cover, handhole cover capable of preventing the cover moving and its base and opener Download PDFInfo
- Publication number
- CN2677454Y CN2677454Y CN 200420006158 CN200420006158U CN2677454Y CN 2677454 Y CN2677454 Y CN 2677454Y CN 200420006158 CN200420006158 CN 200420006158 CN 200420006158 U CN200420006158 U CN 200420006158U CN 2677454 Y CN2677454 Y CN 2677454Y
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- China
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- cover
- hand hole
- cage
- manhole cover
- people
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Abstract
The utility model relates to a natural suppression type manhole cover, a handhole cover, the cover seats and the operators of the manhole cover and the handhole cover. According to the Pyhthagorean theorem, the bottom edges of the manhole cover and the handhole cover are provided with a vertical edge to cause the third edges of the manhole cover and the handhole cover to be bigger than the diameters of the cover seats of the manhole cover and the handhole cover, in order to naturally suppress the manhole cover and the handhole cover from jumping off the pavement. A vertical flat sheet is arranged in the manhole cover and the handhole cover, a containing slot is arranged on the vertical flat sheets to cause the vertical edges of the manhole cover and the handhole cover to be sheathed in the vertical flat sheets from the containing slots to suppress the extruding force and the drag force exerting on the manhole cover and the handhole cover because vehicles advance, and thus the accident that the manhole cover and the handhole cover rotate to jump off the pavement is avoided. In addition, operators matching with the manhole cover and the handhole cover are provided, and are composed of a jack and a counter force seat. The operators of the manhole cover and the handhole cover have the following advantages: the time and the labor are saved, and the operators of the manhole cover and the handhole cover are easy and convenient to be carried. The manhole cover and the handhole cover can be vertical and easy to be opened by the jacks.
Description
Technical field
The utility model is about a kind of natural inhibiting type manhole cover, hand hole cover and cage and opening/closing device, particularly suppress the structure device that manhole cover, hand hole cover jump out of about a kind of, and save time, laborsaving, easy to operate and vertically mention the opening/closing device device of moving easily.
Background technology
Manhole cover commonly used or hand hole cover are arranged on the carriageway more, because the vehicle dealing is frequent, cause manhole cover or hand hole cover to jump out of the aperture, have a strong impact on road safety.The back finds that its principal element is as follows after deliberation:
One, people, hand hole cover both be arranged on the carriageway, rolled through vehicle, with the passing of time wore and tore and aging cracking, after more renewing cover plate, because of newly cover plate and old cage are non-is same group model casting, causes the horizontal clearance of cover plate and cage bigger, vertically is uneven.
Two, the manufacturing of people, hand hole cover finished product all uses sand mo(u)ld perfusion to form, and because of the granular size of sand can't be consistent, causes cover plate and the cage exposure level face can't be smooth, and the vertical plane space is too big.
Three, in the sand mo(u)ld filling process, form removal is dealt with improperly, through process of expansion and contraction, makes people, hand hole cover distortion.
Four, according to standards of acceptance, people, the only sampling inspection of hand hole cover finished product, so that be difficult to all check and accept its whether compliant size.
Five, construction or attendant open after people, the hand hole cover, will not fall to stay finger stone, the silt particle of cage when restoring and remove.
Six, people, hand hole cover place on the carriageway, are positioned at the route of the normal process of wheel just as its position, and on-the-spot roadway often can be found two wheel traces, normal for a long time after, people, hand hole cover are under the wheel vestige, cover plate and cage are worn.Through construction or after the attendant opens people, hand hole cover, be difficult to put back to the origin-location when restoring, cause the injustice between cover plate and cage, beat or jump out of and produce.
Analyze above-mentioned disappearance, in fact have too many case to follow, wherein as the traffic accident together that January 23, emerging bridge took place in the city of the Taibei in 1989.This cycling start seed of trouble is according to police investigation, its accident reason be a vehicle spreading in telecommunication bureau be covered on the bridge floor the unexpected bullet of manhole cable culvert pipe iron covering from, cause follow its afterwards a passenger traffic bus of process bang into man-hole opening, and being upspring, flies away from whole vehicle body, and be pressed onto on the car of head-on sailing, cause that four passengers die instantly on the car.
According to above-mentioned traffic accident incident, behind inventor's field research, learn that it causes trouble process as shown in Figures 1 to 4, describe in detail as the back:
Highway bridge design specifications regulation according to U.S.'s continent highway and transportation official association (AASHTO) traffic technique standard: the wheelbase Dd of standard open freight car is 4.25m, if road speed is 60km/hr, cover plate RF is 0.676m, then works as the time starting point to be:
∑T dR＝0
dR≥0
Front-wheel through manhole cover rear end R to time of front end F is:
T RF＝ RF/v＝0.676m/(60×1000m/hr)×60×60＝0.04056sec
Trailing wheel to the manhole cover rear end R time is:
T DR＝( Dd- RF)/M＝(4.25m-0.676m)/(60×1000m/hr)×60×60＝0.21444sec
Above-mentioned formula shows that before vehicle no show manhole cover, manhole cover is as excellent as before, but cover plate and cage exposure level face excesssive gap, vertical plane partly be uneven (Fig. 1).During the manhole cover of vehicle front-wheel contact then rear end R point, its time T dR is a starting point, because of exposure level face excesssive gap, is uneven between cover plate and cage again, causes the perk of cover forward end F point, and it highly is H
1(Fig. 2).Then the vehicle front-wheel is when T RF=0.0405sec arrives manhole cover front end F, because of cover forward end F and cage have apart from H
1, add moment first time collision effect, make the R perk of manhole cover rear end, it highly is H
2Than front end is high (H
2＞H
1).When the vehicle front-wheel just will leave the manhole cover front end, when being added in the front end of cover plate because of vehicle gravity, existing H
1The distance that falls, add this for the second time moment collision effect, cause the cover plate rear end to have upwards higher to fall apart from H
2, promptly the vehicle front-wheel leaves the manhole cover front end, and cover plate promptly becomes seesaw action (Fig. 3).When T DR=0.214sec, when vehicle rear wheel collides manhole cover rear end R, manhole cover is hit from original position at last, cause the car crash major traffic accidents, jeopardize public popular safety (Fig. 4).
Other consults Fig. 5 to shown in Figure 9, because vehicle imposes on the drag force or the compressive force effect of manhole cover, makes manhole cover produce anti-clockwise power and jumps out of the culvert pipe hole, also can cause the harm of traffic accident, its process as described later:
At first, owing to have the space between manhole cover and pedestal, when the loaded vehicle front-wheel was pressed onto an end of manhole cover, the other end can perk (Fig. 5).Then front-wheel continues to advance and since wheel impose on manhole cover execute drag force and compressive force, make manhole cover produce the power of counter rotation, the peak that takeoffs this moment also rotates (Fig. 6) by counter-clockwise direction.Current wheel load cross the manhole cover distal edge along the time, the peak that takeoffs moves to the right back, at this moment, perk end height has promptly exceeded road ground (Fig. 7).After the front-wheel process, manhole cover is subjected to effect of inertia still can continue to rotate raise up (Fig. 8).And according to trailing wheel to the manhole cover rear end R time be T DR=0.214sec, the obvious vehicle rear wheel of in this very brief time, being passed through, the back acies of will inevitably overtaking collision kicking up to manhole cover, because the enormous impact power of loaded vehicle, manhole cover after being impacted is flown out to right front rotation, influence road safety (Fig. 9).
This shows that above-mentioned article commonly used still have many disappearances, real non-one kindhearted design, and demand urgently being improved.For this reason, the applicant provides safe and practical inhibition formula manhole cover, hand hole cover and a cage.This utility model adds the casting vertical edges in people, appropriate location, hand hole cover cover plate base when casting, cause the 3rd limit greater than people, hand hole cage internal diameter, makes the front end of vertical edges and the 3rd limit that another base is formed with inclination, and inhibition people, hand hole cover jump out of naturally.Again, it is comparatively dull that the bolt of people commonly used, the special-purpose opening/closing device of hand hole cover is adjusted the structure setting, makes the adjustment of chain comparatively difficult, so original work is difficult to bring into play existing function, and the reinforcement space arranged.
The utility model content
The purpose of this utility model is the shortcoming that solves above-mentioned article commonly used, a kind of safe and practical natural inhibiting type manhole cover, hand hole cover and cage thereof are provided, this people, hand hole cover are in appropriate location, cover plate base, when casting, add the casting vertical edges, cause the 3rd limit of inclination, make its 3rd limit greater than people, hand hole cage diameter, inhibition people, hand hole cover jump out of naturally.And in people, several appropriate locations of hand hole cage, precasting is perpendicular to the flat board of cage, and flat board is provided with storage tank, is inserted in from storage tank so that people, hand hole cover add the vertical edges of casting, can suppress people, the stressed rotation of hand hole cover and the accident of jumping out the road surface takes place.
Another purpose of the present utility model is to provide a kind of and saves time, laborsaving, safe and practical inhibition formula people, hand hole cover opening/closing device, and this opening/closing device can gently be exerted pressure, and vertically will suppress the formula people easily, hand hole cover opens and closes, and is very easy in the operation.Without the method for habit, people, hand hole cover can be drawn back on the hook, and this kind opened method and be difficult for being stolen people, hand hole cover by delinquenent element, and vehicle passes through above the aperture, also easily cause the traffic accident of car crash.
The utlity model has following advantage:
This utility model adds the casting vertical edges in people, appropriate location, hand hole cover cover plate base when casting, cause the 3rd limit greater than people, hand hole cage internal diameter, makes the front end of vertical edges and the 3rd limit that another base is formed with inclination, and inhibition people, hand hole cover jump out of naturally.Other cooperates this people, hand hole cover to be provided with an opening/closing device; formed by jack and counter-force seat, have save time, laborsaving and be easy to portable just, its jack can be vertically and is opened people, hand hole cover easily; except that promoting operating efficiency, also can protect constructor's safety.
Description of drawings
Fig. 1 for people commonly used, hand hole cover is beated or eject cage block diagram () on the road surface;
Fig. 2 for people commonly used, hand hole cover is beated or eject cage block diagram (two) on the road surface;
Fig. 3 for people commonly used, hand hole cover is beated or eject cage block diagram (three) on the road surface;
Fig. 4 for people commonly used, hand hole cover is beated or impacted the cage schematic diagram that ejects on the road surface by back wheels of vehicle;
The block diagram (one) that Fig. 5 rotates the cage that flies out for people commonly used, hand hole cover;
The block diagram (two) that Fig. 6 rotates the cage that flies out for people commonly used, hand hole cover;
The block diagram (three) that Fig. 7 rotates the cage that flies out for people commonly used, hand hole cover;
The block diagram (four) that Fig. 8 rotates the cage that flies out for people commonly used, hand hole cover;
The block diagram (five) that Fig. 9 rotates the cage that flies out for people commonly used, hand hole cover;
Figure 10 is the utility model people, hand hole cover and the complete structure chart of cage assembling;
Figure 10 A is the schematic diagram of movements of Figure 10;
Figure 10 B is provided with routine structure chart for Figure 10 sets up the inhibition formula collar;
Figure 11 A is the utility model people, hand hole cage vertical view;
Figure 11 B is the utility model people, hand hole cover vertical view;
Figure 12 A is another routine people, hand hole cage vertical view;
Figure 12 B is another routine people, hand hole cage lateral view;
Figure 13 A is another routine people, hand hole cover vertical view;
Figure 13 B is another routine people, hand hole cover upward view;
Figure 14 is the utility model opening/closing device stereogram;
Figure 14 A is a partly enlarged drawing of the utility model opening/closing device;
Figure 15 implements illustration for the utility model opening/closing device;
Figure 16 receives the folded illustration of depositing for the utility model opening/closing device.
The specific embodiment
See also the detailed description and the accompanying drawing thereof of following relevant the utility model one preferred embodiment, further understand technology contents of the present utility model and purpose effect thereof.
See also Figure 10, Figure 10 A, natural inhibiting type manhole cover provided by the utility model, hand hole cover and cage and opening/closing device, it is in people, appropriate location, hand hole cover 1 cover plate base, when casting, add casting vertical edges 11, make vertical edges 11 summit B and people, hand hole cover 1 front end R (or rear end F) form the 3rd limit RB (or FB) of inclination, according to complete formula theorem theory:
RB
2=RA
2+ AB
2So RB＞RA＞R1F (people, hand hole cage internal diameter)
So when the spreading of vehicle front-wheel when R holds, precasting is cage 2 at the vertical edges 11 length A B of people, hand hole cover 1 to be suppressed, and suppresses the people naturally, hand hole cover 1 jumps out of.
See also Figure 10 B, the utility model increases the inhibition formula collar 6 that a tool inhibit feature is arranged in addition for the road surface after overhauling, these inhibition formula collar 6 bottoms are provided with vertical edges 61 with respect to the storage tank 31 of people, hand hole cage 2, and should the inhibition formula collar 6 tops be provided with preformed hole 62 with respect to the vertical edges 11 of people, hand hole cover 1, so this suppresses the formula collar 6, so this people, hand hole cover 1 flush with the road surface is complete, it suppresses the people, hand hole cover 1 accident jumps out of the traffic accident that is taken place but can bring into play.
See also Figure 11 A, Figure 11 B, feature of the present utility model, be people, hand hole cage 2 several appropriate locations, precasting is perpendicular to the flat board 3 of cage 2, and dull and stereotyped 3 be provided with locating slot 31, and its quantity is good with four, so that the vertical edges 11 that people, hand hole cover 1 add casting from this locating slot 31 be inserted in and produce against, in the time of can suppressing to advance, impose on the compressive force and the drag force of people, hand hole cover 1, make people, hand hole cover 1 produce rotation and the accident of jumping out the road surface takes place by the vehicle front-wheel because of vehicle.
Between above-mentioned each vertical edges 11, all leave clearance space,, make attentively operation of staff in case people, hand hole cover 1,4 weigh staff foot wounded when operation.
See also Figure 12 A, Figure 12 B, because of this locating slot 31 itself need not bear load,, but increase by dull and stereotyped 3 abundant degree so the utility model can be removed the edge of this locating slot 31, and should reinforcement rib 32 can be set flat board 3 bottoms, increase the load-bearing capacity of people, hand hole cage 2 by mechanics principle naturally.
See also Figure 13 A, Figure 13 B, at people, hand hole cover 1, except that having vertical edges 11 with the plant locating slot 31, be provided with suppending hole 13 in people, hand hole cover 1 front (overlooking face) in addition, be provided with suspention post 14 in this suppending hole 13, this suspention post 14 needs to cooperate aftermentioned opening/closing device 5 vertically to hang people, hand hole cover 1, and after hanging the formation balance simultaneously, can sling on four suspention posts 14, so can prevent that the thieves or robbers who act under cover of night from stealing the behavior of people, hand hole cover 1, and this suspention post 14 blocks in the middle of being, two ends are fixed on suppending hole 13 walls, and this is provided with still die sinking effect easily.
See also Figure 14, Figure 14 A, the utility model is for asking operation convenient, other is provided with an opening/closing device 5, this opening/closing device is made up of jack 51 and mobile device 52, jack 51 tops are provided with dull and stereotyped 511, four corners of dull and stereotyped 511 are got proper width and upwards are bent with an angle, and each corner is drilled with screwed hole, bolt 512 is locked, and be provided with chain 513 at bolt 512 other ends, chain 513 ends are provided with suspension hook 514, adjust each bolt 512 balance people, the center of gravity of hand hole cover is vertically to open and close the people smoothly, the action of hand hole cover, and dull and stereotyped 511 belows are provided with curved bar 515, be provided with an oil hydraulic cylinder 519 in curved bar 515 joint portions, and control the lifting of these oil hydraulic cylinders 519 by force arm 510; 52 of mobile devices are provided with a crossbeam 521, and crossbeam 521 is used for connecting curved bar 515, and to support jack 51, these crossbeam 521 two ends are connected with supports pin 523, supports that the underfooting is provided with roller 526.
Placed an adjustable double-screw bolt 5121 in the aforementioned bolt 512, and with the fixing extension elongation of a nut 5122, articulating one suspension hook 5123 in lower end is hooked on the chain 513 this suspension hook 5123, by adjustable double-screw bolt 5121 extension elongations, make the operation of opening/closing device 5 more easy.
See also Figure 15, when using, earlier suspension hook 514 is colluded the utility model the periphery of hanging people, hand hole cover 1, but and the position of centre of gravity of mat bolt 512 adjustment when opening and closing people, hand hole cover, then control the lifting of force arm 510 these oil hydraulic cylinders 519 of control, drive simultaneously on the curved bar 515 and carry, and, can a little application of force finish the action that people, hand hole cover 1 are hung by lever principle.
See also Figure 16, the utility model crossbeam 521 is provided with one and folds pipe 524, crossbeam 521 can be received in both sides, and be supported that pin 523 is provided with rotating shaft 525, makes and supports pin 523 also can be beneficial to folded the depositing of receipts of opening/closing device 5 along rotating shaft 525 toward inner bending.
Above-listed detailed description is specifying at one of the utility model possible embodiments, only this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence that the utility model skill spirit does and implement or change, all should be contained in the claim of this case.
Claims (10)
1. natural inhibiting type manhole cover, hand hole cover and cage thereof and opening/closing device, it is characterized in that: manhole cover or hand hole cover are in its appropriate location, base, be cast with vertical edges in casting to add simultaneously, make front end and another base of vertical edges form the 3rd limit of inclination, the 3rd edge lengths is greater than the people, the people that hand hole cover covered, the internal diameter of hand hole cage, to reach the function that inhibition jumps out of naturally, each vertical edges is non-to be closed, and be provided with the breach of proper width at adjacent, make this people, hand hole cover can not injure staff foot when opening and closing, and can make the wholwe-hearted operation of staff; And opening/closing device includes a jack and a mobile device, can easily manhole cover or hand hole cover be sling by the jack application of force, and move to the appropriate location via mobile device.
2. by the described natural inhibiting type manhole cover of claim 1, hand hole cover and cage and opening/closing device, it is characterized in that: wherein can be around the cage of desiring to add a cover, be equipped with flat board perpendicular to cage, flat board is provided with locating slot, to insert vertical edges, make not reason external force and rotate the road surface that flies out of manhole cover, hand hole cover.
3. by the described inhibition formula of claim 2 manhole cover, hand hole cover and opening/closing device, it is characterized in that: wherein should the reinforcement rib be set the flat board bottom, to increase the load-bearing capacity of people, hand hole cage.
4. by the described natural inhibiting type manhole cover of claim 1, hand hole cover and cage and opening/closing device, it is characterized in that: wherein this locating slot and vertical edges can be provided with one or more.
5. by the described natural inhibiting type manhole cover of claim 1, hand hole cover and cage and opening/closing device, it is characterized in that: wherein be provided with suppending hole, be provided with the suspention post in this suppending hole in people, hand hole cover front.
6. by the described natural inhibiting type manhole cover of claim 5, hand hole cover and cage and opening/closing device, it is characterized in that: block in the middle of wherein suspending post system in midair, two ends are fixed on the suppending hole wall, to make things convenient for die sinking.
7. by the described natural inhibiting type manhole cover of claim 1, hand hole cover and cage and opening/closing device, it is characterized in that: wherein opening/closing device comprises:
One jack, its top is provided with flat board, four dull and stereotyped corners are got proper width and upwards are bent with an angle, and each corner is drilled with screwed hole, bolt is locked, and be provided with chain at the bolt other end, its bolt makes each chain stress balance as adjusting chain, the chain end is provided with suspension hook, because of every chain stress balance, make suspension hook promptly trigger people, hand hole cover easily, and dull and stereotyped below is provided with curved bar, be provided with an oil hydraulic cylinder in the curved bar joint portion, this oil hydraulic cylinder is by force arm control lifting;
One mobile device, this mobile device is provided with a crossbeam, and crossbeam is used for connecting curved bar, and to support jack, these crossbeam two ends are connected with the support pin, support that the underfooting is provided with roller.
8. by the described natural inhibiting type manhole cover of claim 7, hand hole cover and cage and opening/closing device, it is characterized in that: wherein placed an adjustable double-screw bolt in this bolt, and with a fixed by nut extension elongation, lower end articulating one suspension hook, this suspension hook is hooked on the chain, adjustable double-screw bolt extension elongation, the operation that makes opening/closing device be balance and opening easily more.
9. by the described natural inhibiting type manhole cover of claim 7, hand hole cover and cage and opening/closing device, it is characterized in that: wherein this crossbeam is provided with one and folds pipe, make that crossbeam can this folds in the pipe from the two ends retraction, and support that pin is provided with rotating shaft, make support pin along rotating shaft toward interior recovery.
10. by the described natural inhibiting type manhole cover of claim 1, hand hole cover and cage and opening/closing device, it is characterized in that: the inhibition formula collar that wherein between people, hand hole cover and cage, is provided with a tool inhibit feature, this inhibition formula collar bottom is provided with vertical edges with respect to the storage tank of people, hand hole cage, and should inhibition formula collar top be provided with preformed hole with respect to the vertical edges of people, hand hole cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006158 CN2677454Y (en) | 2004-02-27 | 2004-02-27 | Manhole cover, handhole cover capable of preventing the cover moving and its base and opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420006158 CN2677454Y (en) | 2004-02-27 | 2004-02-27 | Manhole cover, handhole cover capable of preventing the cover moving and its base and opener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2677454Y true CN2677454Y (en) | 2005-02-09 |
Family
ID=34582724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420006158 Expired - Fee Related CN2677454Y (en) | 2004-02-27 | 2004-02-27 | Manhole cover, handhole cover capable of preventing the cover moving and its base and opener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2677454Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615537A (en) * | 2013-10-26 | 2014-03-05 | 芜湖新兴铸管有限责任公司 | Sealing structure of rotating sealing valve inspection manhole |
-
2004
- 2004-02-27 CN CN 200420006158 patent/CN2677454Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615537A (en) * | 2013-10-26 | 2014-03-05 | 芜湖新兴铸管有限责任公司 | Sealing structure of rotating sealing valve inspection manhole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING HELEFA SCIENCE AND TECHNOLOGY CO.,LTD. Free format text: FORMER OWNER: HETE CO., LTD. Effective date: 20060210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060210 Address after: 100176, Beijing economic and Technological Development Zone, South Park, 12 South District, building 2, Room 401 Patentee after: Beijing science and Technology Co. Ltd. and Address before: Linkou Street Xinyi District in Taiwan city of Taipei province 38 Lane 37 Building No. 4 Patentee before: Schott AG |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050209 |