CN201746853U - Road manhole cover and special opening tool thereof - Google Patents
Road manhole cover and special opening tool thereof Download PDFInfo
- Publication number
- CN201746853U CN201746853U CN200920219481XU CN200920219481U CN201746853U CN 201746853 U CN201746853 U CN 201746853U CN 200920219481X U CN200920219481X U CN 200920219481XU CN 200920219481 U CN200920219481 U CN 200920219481U CN 201746853 U CN201746853 U CN 201746853U
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- CN
- China
- Prior art keywords
- well lid
- manhole cover
- ring
- special opening
- race
- 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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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a road manhole cover and a special opening tool thereof, which relates to a road manhole cover of municipal administration engineering services and an opening tool thereof. The road manhole cover comprises a race and an iron manhole cover, wherein the race is fixed on a manhole mouth, and the iron manhole cover is covered on the race; the surface of the manhole cover is not provided with an opening through hole passing through the cover body, the race is made of iron and can be non-iron material, and the special opening tool is a magnetic hoist arranged on the surface of the manhole cover. The back of the manhole cover is fixed with a non-iron magnetic material gasket 4 along the periphery, or the annular table of the race is provided with a non-iron magnetic material gasket 4'. The utility model has the advantages that the surface of the manhole cover is not provided with through holes to prevent the manhole cover from being stolen from the opening the through hole. The periphery of the manhole cover has small gap with the race to prevent the manhole cover from being stolen because prying tools are inserted. The iron manhole cover is adopted and has high compressive strength and long service life. Magnetic force adsorption is adopted for opening, which is convenient and quick. The back of the manhole cover is inlayed with the non-iron magnetic material gasket, or the annular table of the race is provided with the non-iron magnetic material gasket, so that attractive force on the race by the magnetic hoist can be avoided, which is favorable for magnetic force to attract the manhole cover to open.
Description
Technical field:
The utility model relates to municipal facilities, relates generally to a kind ofly to be used to detect or road manhole and opener thereof that blowdown is used.
Background technology:
Stolen in the prior art in order to prevent road manhole, the consideration of how starting with from two aspects, the one, the design lock, its defective is, because of environment for use humidity and corrosivity are big, uses long-time lockset promptly to be done for by corrosion.The 2nd, adopt the composite material of no recovery value to make, as adopting materials such as cement, glass fiber reinforced plastic, its defective is, and compressive resistance is low, and not anti-trucks entering is so service time, long i.e. quilt was damaged by pressure.Stolen, the damage of road manhole form the road trap, constitute very big threat for pedestrian, vehicle.
Summary of the invention:
Goal of the invention of the present utility model is, a kind of road manhole and special opening instrument thereof are provided, and its compressive resistance height is difficult for stolenly, and it is convenient to open.
The foregoing invention purpose realizes by following technical measures, a kind of road manhole and special opening instrument thereof, comprise well lid and its special opening instrument, well lid comprises seat ring 3 that is fixed on the well head and the iron well lid 1 that is placed on the seat ring, and well lid 1 surface does not have the unlatching through hole that sees through the well lid body; The crack is 1.5-3mm between between well lid outer circumferential walls 11 and the seat ring circumferential inner wall 12; The special opening instrument is to be positioned over the magnetic field pulse hoist 8 that the well lid surface can be opened its attraction, and described magnetic field pulse hoist is permanent magnetic lifter or electromagnetism jack, and jack is connected with the device of slinging.
Preferred version is that seat ring 3 can be ferrous material and also can be non-ferrous material.Well lid 1 back side is fixed with nonferromugnetic material packing ring 4 along periphery, perhaps, in the ring platform 5 of seat ring 3 be provided with nonferromugnetic material packing ring 4 '.Described nonferromugnetic material packing ring can be rubber ring or plastic ring or stainless steel coil or copper band or aluminium circle.Described magnetic field pulse hoist is permanent magnetic lifter or electromagnetism jack.
The utility model advantage is that the well lid surface does not have the through hole of unlatching, can prevent by the through hole unlatching stolen.Well lid periphery is little with the seat ring gap, can prevent that pry from inserting and stolen.Still adopt the irony well lid, compressive strength height, long service life.The employing magnetic attraction is opened, and is convenient and swift, and the well lid back side is inlaid with the nonferromagnetic packing ring, and the nonferromagnetic packing ring perhaps is set on the race platform, can reduce or avoid the attraction of magnetic field pulse hoist counter race, is beneficial to the magnetic attraction well lid and opens.
Description of drawings:
Accompanying drawing 1 the utility model vertical view
The A-A sectional view of accompanying drawing 2 the utility model accompanying drawings 1
Accompanying drawing 3 the utility model well lid back sides are inlaid with packing ring 4 upward views
The partial enlarged drawing I of accompanying drawing 4 the utility model accompanying drawings 2
The partial enlarged drawing I ' of accompanying drawing 5 the utility model accompanying drawings 2 (race platform be provided with packing ring 4 ')
Schematic diagram when accompanying drawing 6 the utility model well lids are opened by magnetic force
The specific embodiment:
According to the given a kind of road manhole of above-mentioned accompanying drawing 16 and the specific embodiment of special opening instrument thereof, the utility model is described in further detail.Present embodiment comprises seat ring 3 that is fixed on the well 10 and the irony well lid 1 that is placed on the seat ring, and well lid 1 surface does not have the unlatching through hole that sees through the well lid body.Seat ring 3 can be ferrous material and also can be non-ferrous material, nonmetallic composite for example, and present embodiment is the cast iron seat ring.The crack is between between well lid outer circumferential walls 11 and the seat ring circumferential inner wall 12: can make common theft pry can't insert and well lid is levered up, its concrete gap length can be 1.5-3mm.The special opening instrument is positioned over the magnetic field pulse hoist 8 that the well lid surface can attract it unlatching when being unlatching, as shown in Figure 6, magnetic field pulse hoist can be permanent magnetic lifter or electromagnetism jack, be the commercially available prod, present embodiment is a permanent magnetic lifter, be connected with the device of slinging (device of slinging does not show) by jack hanging nose 9, can according to circumstances make the various ways device of slinging.
Well lid 1 back side is inlayed along periphery and is fixed with nonferromugnetic material packing ring 4, this packing ring 4 has outer convex edge 6 with respect to well lid outer circumferential walls 11, to isolate contacting between seat ring circumferential inner wall 12 and the well lid outer circumferential walls 11, as shown in Figure 4, perhaps, also can on the ring platform 5 of seat ring 3, be provided with nonferromugnetic material packing ring 4 ', this packing ring 4 ' outer rim have on one prominent outer bulge loop 6 ', as shown in Figure 5, to isolate contacting of seat ring and well lid.Perhaps, rounded washers can also be made a plurality of discrete cushion blocks, what radially distribute is embedded in the well lid back side or the last former packing ring position of race platform (5).(not shown), the purpose that above-mentioned packing ring is set are the magnetic field action intensities that reduces, isolates the magnetic field pulse hoist counter race, to reduce the magnetic attraction of counter race.Nonferromugnetic material packing ring 4 or nonmagnetic substance packing ring 4 ', its exradius is greater than the radius 1-1.5mm of well lid 1, to play buffer action.
Described nonferromugnetic material packing ring can be rubber ring or plastic ring or stainless steel coil or copper band or aluminium circle, the thick about 5-15mm of packing ring.Nonferromugnetic material is meant the material that is difficult for being magnetized to magnet in magnetic field.
The surface has 1-3 and knocks hole 2 on the described well lid 1, before the unlatching, tilts to peak to knock on the hole eye 2 with drill rod earlier, clockwise or counterclockwise knock, make well lid loosening, and then magnetic force is opened, lifting.
Technique scheme also is applicable to square road manhole in principle.
Claims (6)
1. road manhole and special opening instrument thereof comprise well lid and its special opening instrument, and well lid comprises the seat ring (3) that is fixed on the well head and is placed on iron well lid (1) on the seat ring, it is characterized in that well lid (1) surface does not have the unlatching through hole through the well lid body; The crack is 1.5-3mm between between well lid outer circumferential walls (11) and the seat ring circumferential inner wall (12); The special opening instrument is to be positioned over the magnetic field pulse hoist (8) that the well lid surface can be opened its attraction, and described magnetic field pulse hoist is permanent magnetic lifter or electromagnetism jack, and jack is connected with the device of slinging.
2. according to described a kind of road manhole of claim 1 and special opening instrument thereof, it is characterized in that seat ring (3) is made for ferrous material; The back side of well lid (1) is fixed with nonferromugnetic material packing ring (4) along periphery; The surface is provided with 1-3 and knocks hole (2) on the well lid (1).
3. according to described a kind of road manhole of claim 1 and special opening instrument thereof, it is characterized in that seat ring (3) is made for ferrous material; The ring platform (5) of seat ring (3) is provided with nonferromugnetic material packing ring (4 '); The surface is provided with 1-3 and knocks hole (2) on the well lid (1).
4. according to claim 2 or 3 described a kind of road manhole and special opening instruments thereof, it is characterized in that described nonferromugnetic material packing ring (4) or nonferromugnetic material packing ring (4 ') are rubber ring or plastic ring or stainless steel coil or copper band or aluminium circle; The thick 5-15mm of packing ring; Its exradius is greater than the radius 1-1.5mm of well lid (1).
5. according to described a kind of road manhole of claim 4 and special opening instrument thereof, it is characterized in that, described nonferromugnetic material packing ring (4) or nonferromugnetic material packing ring (4 ') can for a plurality of discrete cushion blocks, radially distribute be embedded in the well lid back side or the last former packing ring position of race platform (5).
6. according to described a kind of road manhole of claim 1 and special opening instrument thereof, it is characterized in that seat ring (3) is made for non-ferrous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920219481XU CN201746853U (en) | 2009-10-16 | 2009-10-16 | Road manhole cover and special opening tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920219481XU CN201746853U (en) | 2009-10-16 | 2009-10-16 | Road manhole cover and special opening tool thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201746853U true CN201746853U (en) | 2011-02-16 |
Family
ID=43581533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920219481XU Expired - Fee Related CN201746853U (en) | 2009-10-16 | 2009-10-16 | Road manhole cover and special opening tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201746853U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669410A (en) * | 2013-11-20 | 2014-03-26 | 廖满贵 | Self-locking well cover and opening device thereof |
| WO2014206422A1 (en) * | 2013-06-25 | 2014-12-31 | Romero Fernández Enriquillo Manuel | Carriage for lifting covers for manholes and other underground uses |
| CN105253836A (en) * | 2015-11-09 | 2016-01-20 | 王本 | Hook for opening well lids |
| CN106744569A (en) * | 2016-12-02 | 2017-05-31 | 山东鼎创数控设备有限公司 | A kind of municipal administration well lid moves device |
| CN110342442A (en) * | 2019-06-21 | 2019-10-18 | 张曼玉 | A kind of municipal works lid arrangement that drives a well automatically |
| CN110627005A (en) * | 2019-11-03 | 2019-12-31 | 台州学院 | Manhole cover opening device |
-
2009
- 2009-10-16 CN CN200920219481XU patent/CN201746853U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206422A1 (en) * | 2013-06-25 | 2014-12-31 | Romero Fernández Enriquillo Manuel | Carriage for lifting covers for manholes and other underground uses |
| CN103669410A (en) * | 2013-11-20 | 2014-03-26 | 廖满贵 | Self-locking well cover and opening device thereof |
| CN103669410B (en) * | 2013-11-20 | 2016-01-06 | 廖满贵 | Self-locking manhole lid and opening device thereof |
| CN105253836A (en) * | 2015-11-09 | 2016-01-20 | 王本 | Hook for opening well lids |
| CN106744569A (en) * | 2016-12-02 | 2017-05-31 | 山东鼎创数控设备有限公司 | A kind of municipal administration well lid moves device |
| CN110342442A (en) * | 2019-06-21 | 2019-10-18 | 张曼玉 | A kind of municipal works lid arrangement that drives a well automatically |
| CN110627005A (en) * | 2019-11-03 | 2019-12-31 | 台州学院 | Manhole cover opening device |
| CN110627005B (en) * | 2019-11-03 | 2024-04-26 | 台州学院 | Manhole cover opening 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: 20110216 Termination date: 20111016 |