CN104631511A - Manhole cover blind hole lift - Google Patents
Manhole cover blind hole lift Download PDFInfo
- Publication number
- CN104631511A CN104631511A CN201510066940.5A CN201510066940A CN104631511A CN 104631511 A CN104631511 A CN 104631511A CN 201510066940 A CN201510066940 A CN 201510066940A CN 104631511 A CN104631511 A CN 104631511A
- Authority
- CN
- China
- Prior art keywords
- blind hole
- bolt
- inspection well
- lifting appliance
- well cover
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1418—Covers for manholes or the like; Frames for covers with implements to assist in lifting, e.g. counterweights, springs
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a manhole cover blind hole lift comprising at least two back-bolt holes arranged in the upper surface of a manhole cover plate. A blind hole bolt with a threaded hole is anchored in each back-bolt hole. An internal hex fastening screw is connected into the threaded hole of each blind hole bolt. The manhole cover blind hole lift is ingenious in structure and simple to manufacture, little structural damage is caused to a granite manhole cover, and foreign matters are avoided entering a wellhead of a manhole.
Description
Technical field
The present invention relates to a kind of inspection well cover blind hole lifting appliance.
Background technology
Along with socioeconomic development, the requirement of people to public building, Square Construction also improves thereupon, and the terrace that granite is laid also more and more is favored.In engineering construction, have many underground utilities and inspection-pit, and these inspection-pits often appear in important view position, so in order to landscape effect, inspection well cover miscellaneous just occurs thereupon.Because underground construction needs maintenance, therefore proposing requirement to the unlatching of inspection well cover, is on cover plate of manhole, open several circular hole under regular situation, is promoted, complete the unlatching of inspection well cover by the steel hook of customization.
But owing to cover plate of manhole having been opened circular hole straight through inspection well passway, often occur breaking in limit, hole, V shape heel has snapped in and has caused dispute.In addition, circular hole opens wide throughout the year upward, has the foreign material such as many dusts, stub to enter catch pit port, causes a lot of trouble to the maintenance of underground construction.
Summary of the invention
The present invention seeks to: for the deficiencies in the prior art, a kind of inspection well cover blind hole lifting appliance of new structure is provided.
Technical scheme of the present invention is: a kind of inspection well cover blind hole lifting appliance, it is characterized in that: this device is included at least two back of the body keyholes that cover plate of manhole upper surface is offered, in described back of the body keyhole, anchoring is with the blind hole crab-bolt of screwed hole, is connected with interior hexagonal holding screw in the screwed hole of described blind hole crab-bolt.
The present invention, on the basis of technique scheme, also comprises following preferred version:
The upper surface of described blind hole crab-bolt, the upper surface of interior hexagonal holding screw and the upper surface flush arrangement of cover plate of manhole.
Described back of the body keyhole has two.
Described back of the body keyhole has four, and the rectangular distribution on cover plate of manhole of these four back of the body keyholes.
The aperture of described back of the body keyhole is 13mm.
Screwed hole in described blind hole crab-bolt is the screwed hole of M8*9.
Described blind hole crab-bolt is anchored in described back of the body keyhole by steel cylinder.
The diameter of described steel cylinder is 6.8mm, and length is 9mm.
Described cover plate of manhole is made up of superposed granite slab top board and the stainless steel base plate being positioned at bottom, and described granite slab top board and stainless steel base plate interfix, and described back of the body keyhole is opened on described granite slab top board.
Described granite slab cover top surface is fixed with stainless steel label.
Advantage of the present invention is:
1, the lifting appliance owing to adopting is back of the body stud structure, and therefore structure is very little.Diameter may diminish to
very little on the impact of environment, avoid and produce the phenomenon of skidding because stainless steel area is excessive.
2, the back of the body stud structure of this device employing is very little to the structural damage of inspection well cover slabstone.
3, this device have employed back of the body stud structure, and back of the body bolt crab-bolt is a standard component, and buying is convenient.
4, owing to have employed back of the body stud structure, also very convenient to the perforate of inspection well cover slabstone.
5, owing to adopting the screw thread of hexagonal holding screw to crab-bolt in M8*9 to protect, inspection well cover blind hole lifting appliance is made to have very high application life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the overall structure schematic diagram of inspection well cover blind hole lifting appliance;
Fig. 2 is the structural representation of cover plate of manhole;
Fig. 3 is the A portion enlarged drawing of Fig. 1;
Fig. 4 is the demonstration graph opening cover plate of manhole;
Fig. 5, Fig. 6 and Fig. 7 are the anchoring schematic diagram of blind hole crab-bolt;
Wherein: 1-cover plate of manhole, 11-granite slab top board, 12-stainless steel base plate, 2-carries on the back keyhole, 3-blind hole crab-bolt, hexagonal holding screw in 4-, 5-steel cylinder, 6-granite tile work, the brick well body of 7-, hexagonal holding screw special tool in 8-M8*9,9-stainless steel label.
Detailed description of the invention
Embodiment: Fig. 1 ~ Fig. 4 is a kind of structural representation of inspection well cover blind hole lifting appliance, this lifting appliance is included in the back of the body keyhole 2 that four apertures that cover plate of manhole 1 upper surface offers are 13mm, and the rectangular distribution of these four back of the body keyholes 2, in described back of the body keyhole 2, anchoring is with the I.S.S blind hole crab-bolt 3 of M8 screwed hole 32, and the crab-bolt of blind hole described in this example 3 passes through
steel cylinder 5 be anchored in described back of the body keyhole 2.Be threaded in the M8 screwed hole of described blind hole crab-bolt 3 the interior hexagonal holding screw 4 of M8*9.Interior hexagonal holding screw 4 is for the protection of the screw thread of M8 screwed hole.
It should be noted that, the size of screwed hole 32 size, interior hexagonal holding screw 4 and the quantity of back of the body keyhole 2 in the aperture of described back of the body keyhole 2, blind hole crab-bolt 3, all can set according to actual needs and specifically, the quantity of wherein carrying on the back keyhole 2 is generally two or four.
Described blind hole crab-bolt 3 upper surface, the upper surface of interior hexagonal holding screw 4 and the upper surface flush arrangement of cover plate of manhole 1, destroy this well lid to reduce external object as much as possible.
As shown in Figure 1, cover plate of manhole 1 described in this example is made up of with the stainless steel base plate 12 being positioned at bottom superposed granite slab top board 11, described granite slab top board 11 and stainless steel base plate 12 interfix, described back of the body keyhole 2 is opened on described granite slab top board 11, and granite slab top board 11 upper surface is fixed with stainless steel label 9.And described stainless steel base plate 12 and stainless steel label 9 are 304 stainless steels.
The detailed construction of above-mentioned blind hole crab-bolt can refer to shown in Fig. 5, this crab-bolt comprises in it crab-bolt body 31 being shaped with axial threaded hole 32 (namely above-mentioned M8 screwed hole), axial one end of crab-bolt body 31 forms several and is annular distribution and can the expansion pawl 33 of radial outward dilations, is formed with conical expanded bore 34 between described each expansion pawl 33.And the end of described expansion pawl 33 forms the protruding 33a of the occlusion extended radially outwardly.
Again shown in composition graphs 1 ~ Fig. 7, first the making and use method of this for the present embodiment inspection well cover blind hole lifting appliance is described below:
During making, first at the back of the body keyhole 2 that cover plate of manhole 1 upper surface assigned address is offered, then adopt blind hole crab-bolt 3 hand-hole in place, will
steel cylinder 5 is through the M8 screwed hole 32 of blind hole crab-bolt 3, and knocked at the bottom of hole, under the extruding of steel cylinder 5, expansion pawl 33 bottom crab-bolt radially outward opens, in the process by each expansion pawl 33 enclose the expanded bore 34 that formed by taper shape gradually dilatating and deformable be cylindrical, the protruding 33a of occlusion of expansion pawl 33 end granite well lid of tightly nipping is inner, thus this blind hole crab-bolt 3 is anchored at firmly in back of the body keyhole 2 (as Fig. 5 ~ Fig. 7).Finally adopting hexagonal holding screw 4 in M8*9 to be screwed into blind hole crab-bolt 3 causes smooth.
Only need to adopt hexagonal standard wrench 6 in M8 first to take off hexagonal holding screw 4 in M8*9 when inspection well cover will be opened, then M8 special tool is adopted to be screwed into the M8 screwed hole of blind hole crab-bolt 3, hand-held T-shaped being upwards lifted out the height after lid, and move to suitable position, complete the overall process opening inspection well cover.
Certainly, above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to people can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (10)
1. an inspection well cover blind hole lifting appliance, it is characterized in that: this device is included at least two back ofs the body keyhole (2) that cover plate of manhole (1) upper surface is offered, the interior anchoring of described back of the body keyhole (2), with the blind hole crab-bolt (3) of screwed hole (32), is connected with interior hexagonal holding screw (4) in the screwed hole (32) of described blind hole crab-bolt (3).
2. inspection well cover blind hole lifting appliance according to claim 1, is characterized in that: the upper surface flush arrangement of the upper surface of described blind hole crab-bolt (3), the upper surface of interior hexagonal holding screw (4) and cover plate of manhole (1).
3. inspection well cover blind hole lifting appliance according to claim 1 and 2, is characterized in that: described back of the body keyhole (2) has two.
4. inspection well cover blind hole lifting appliance according to claim 1 and 2, is characterized in that: described back of the body keyhole (2) has four, and these four back ofs the body keyhole (2) are in the upper rectangular distribution of cover plate of manhole (1).
5. inspection well cover blind hole lifting appliance according to claim 1 and 2, is characterized in that: the aperture of described back of the body keyhole (2) is 13mm.
6. inspection well cover blind hole lifting appliance according to claim 1 and 2, is characterized in that: the screwed hole that the screwed hole (32) in described blind hole crab-bolt (3) is M8*9.
7. inspection well cover blind hole lifting appliance according to claim 1 and 2, is characterized in that: described blind hole crab-bolt (3) is anchored in described back of the body keyhole (2) by steel cylinder (5).
8. inspection well cover blind hole lifting appliance according to claim 7, is characterized in that: the diameter of described steel cylinder (4) is 6.8mm, and length is 9mm.
9. inspection well cover blind hole lifting appliance according to claim 1 and 2, it is characterized in that: described cover plate of manhole (1) is made up of superposed granite slab top board (11) and the stainless steel base plate (12) that is positioned at bottom, described granite slab top board (11) and stainless steel base plate (12) interfix, and described back of the body keyhole (2) is opened on described granite slab top board (11).
10. inspection well cover blind hole lifting appliance according to claim 9, is characterized in that: described granite slab top board (11) upper surface is fixed with stainless steel label (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510066940.5A CN104631511A (en) | 2015-02-09 | 2015-02-09 | Manhole cover blind hole lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510066940.5A CN104631511A (en) | 2015-02-09 | 2015-02-09 | Manhole cover blind hole lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104631511A true CN104631511A (en) | 2015-05-20 |
Family
ID=53210709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510066940.5A Pending CN104631511A (en) | 2015-02-09 | 2015-02-09 | Manhole cover blind hole lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104631511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108128744A (en) * | 2018-01-13 | 2018-06-08 | 张若玮 | Electric power inspection well cover unpacking forklift |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217644Y (en) * | 1994-11-14 | 1996-01-17 | 王东和 | Anti-theft manhole-cover |
| CN2241169Y (en) * | 1995-01-12 | 1996-11-27 | 易国辉 | Anti-theft ditch well device |
| CN1207436A (en) * | 1997-08-01 | 1999-02-10 | 王东和 | Manhole closing device |
| CN2444993Y (en) * | 2000-09-30 | 2001-08-29 | 刘增全 | Compession cement manhole cover |
| CN2718067Y (en) * | 2004-06-30 | 2005-08-17 | 富达法兰(天津)有限公司 | Non-separating antitheft cover for manhole |
| CN2784464Y (en) * | 2005-05-10 | 2006-05-31 | 邢建中 | Anti-theft cover for manhole |
| CN2809017Y (en) * | 2005-07-28 | 2006-08-23 | 和特股份有限公司 | Antitheft anti-disconnecting manhole cover |
| KR20070023327A (en) * | 2005-08-24 | 2007-02-28 | 서석태 | manhole |
| CN2892975Y (en) * | 2005-01-28 | 2007-04-25 | 张昌华 | Antitheft manhole and manhole cover antitheft lock thereof |
| WO2008046668A1 (en) * | 2006-10-17 | 2008-04-24 | Bruno Zanatta | Kit for the adjustment of manholes for pits |
| CN102127915A (en) * | 2009-09-30 | 2011-07-20 | 王东和 | Waterproof and shockproof wellhead assembly |
| CN103452140A (en) * | 2013-09-11 | 2013-12-18 | 青岛林川工程技术咨询有限公司 | Well lid system for airport and usage method thereof |
| CN203729337U (en) * | 2014-01-07 | 2014-07-23 | 安徽理工大学 | Well lid and pulling-up device thereof |
-
2015
- 2015-02-09 CN CN201510066940.5A patent/CN104631511A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217644Y (en) * | 1994-11-14 | 1996-01-17 | 王东和 | Anti-theft manhole-cover |
| CN2241169Y (en) * | 1995-01-12 | 1996-11-27 | 易国辉 | Anti-theft ditch well device |
| CN1207436A (en) * | 1997-08-01 | 1999-02-10 | 王东和 | Manhole closing device |
| CN2444993Y (en) * | 2000-09-30 | 2001-08-29 | 刘增全 | Compession cement manhole cover |
| CN2718067Y (en) * | 2004-06-30 | 2005-08-17 | 富达法兰(天津)有限公司 | Non-separating antitheft cover for manhole |
| CN2892975Y (en) * | 2005-01-28 | 2007-04-25 | 张昌华 | Antitheft manhole and manhole cover antitheft lock thereof |
| CN2784464Y (en) * | 2005-05-10 | 2006-05-31 | 邢建中 | Anti-theft cover for manhole |
| CN2809017Y (en) * | 2005-07-28 | 2006-08-23 | 和特股份有限公司 | Antitheft anti-disconnecting manhole cover |
| KR20070023327A (en) * | 2005-08-24 | 2007-02-28 | 서석태 | manhole |
| WO2008046668A1 (en) * | 2006-10-17 | 2008-04-24 | Bruno Zanatta | Kit for the adjustment of manholes for pits |
| CN102127915A (en) * | 2009-09-30 | 2011-07-20 | 王东和 | Waterproof and shockproof wellhead assembly |
| CN103452140A (en) * | 2013-09-11 | 2013-12-18 | 青岛林川工程技术咨询有限公司 | Well lid system for airport and usage method thereof |
| CN203729337U (en) * | 2014-01-07 | 2014-07-23 | 安徽理工大学 | Well lid and pulling-up device thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108128744A (en) * | 2018-01-13 | 2018-06-08 | 张若玮 | Electric power inspection well cover unpacking forklift |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |