CN105800528A - Inspection well cover opening device - Google Patents
Inspection well cover opening device Download PDFInfo
- Publication number
- CN105800528A CN105800528A CN201510829799.XA CN201510829799A CN105800528A CN 105800528 A CN105800528 A CN 105800528A CN 201510829799 A CN201510829799 A CN 201510829799A CN 105800528 A CN105800528 A CN 105800528A
- Authority
- CN
- China
- Prior art keywords
- support
- cover opening
- opening device
- inspection well
- pull bar
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F15/00—Crowbars or levers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to an inspection well cover opening device. The inspection well cover opening device is composed of a support, a supporting leg located on the lower right portion of the support, a threaded rod located at the left end of the supporting leg, a pull rod located at the right end of the support and other structures. The inspection well cover opening device is provided for overcoming the existing technical defects. According to the lever principle, the inspection well cover opening device can be suitable for opening various types of inspection well covers through a convenient and rapid cover opening method.
Description
Technical field
The present invention relates to urban operating mechanism manufacturing technology field, particularly relate to a kind of manhole cover opening device utilizing lever principle.
Background technology
In recent years, along with developing on an unprecedented scale of city-building, the continuous laying of the circuits such as telecommunications, electric power, water supply and sewerage pipeline, the use of inspection shaft gets more and more.Inspection well cover is in order to firm and antitheft, and the heavier mass of manufacture, installation are closely.In use impurity is often filled up in the gap between well and well lid.Time pipeline maintenance or generation unexpected incidents need to open well lid, tending not to open immediately, work plan can not carry out on time, has had a strong impact on work efficiency.The logical instrument of the biography that current China each big city inspection well cover is opened has three kinds: cleek, pickax and sledgehammer, is commonly called as " three-major-items ".These three-major-items are also the three kinds of methods representing and opening inspection shaft: the first opens with cleek hook；The second pickax is pulled and is opened；The not all right words of first two, just with the third, are directly broken well lid, are reached purpose of opening, but the consequence of this method directly influences the productive life of people with sledgehammer.Traditional instrument open manhole cover is time-consuming, effort, also serious affect pipeline maintenance and unexpected incidents repairing, it is therefore desirable to develop a kind of new tool, can have very big Practical significance and economic benefit by unlatching inspection well cover quick and portably.
Technology contents
The purpose of the present invention is intended to overcome above-mentioned prior art defect, it is provided that a kind of manhole cover opening device, this device passes through lever principle, it is possible to opening method easily and fast, it is adaptable to the unlatching of multiple inspection well cover.
The foregoing invention purpose of the present invention is achieved by techniques below solution:
Manhole cover opening device includes: support, is positioned at bottom-right spike of support, is positioned at the screw rod of leg left end and is positioned at the structure such as the pull bar composition of support right-hand member, wherein prop up spike and support is fixed and is welded as a whole, screw rod top is handwheel, bottom is support disk, pull bar upper position is arranged with butterfly nut, has circular gasket to be sheathed on pull bar between butterfly nut and support contact surface.
Described pull bar top is fixed with bearing attachment position butterfly nut and support, but very wide arc gap is left in the junction between connecting rod and support, and this gap is not more than the diameter of butterfly nut lower gasket.
The contact surface of described support lower support foot and inspection well cover is circular arc.
When the effect of the structure that both the above is special is to facilitate screw spiral lifting support, reduce the friction area of two above contact surface.
nullThe present invention utilizes lever principle to carry out the unlatching operation of inspection well cover，The intersection point propping up spike centrage and carriage center horizontal line is balance pivot a，The intersection point of pull bar centrage and carriage center horizontal line is lever stress point b，The intersection point of pitch line and carriage center horizontal line is lever point of application c，The distance of lever point of application c to fulcrum a is lever moment L1+L2，The distance of lever stress point b to fulcrum a is arm of force L2，Produce to make the power F1 of support upwards lifting by the handwheel on free-hand rotary screw，Owing to moment L1+L2 and arm of force L2 is on same straight line，The tensile force f 2 being the formation of on pull bar centrage upwards，Drawn by the analysis of lever principle formula F 1* (L1+L2)=F2*L2，While the height of screw rod upwards lifting is more high，The height of pull bar upwards lifting is also more high.
Pull bar is demountable structure, customizes the pull bar of different structure according to the feature of different Cover of inspection well holes, and the convenient use present invention opens different types of inspection well cover.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Fig. 2 is structural profile schematic diagram in the present invention.
In figure 1, support, 2, screw rod, 3, pull bar, 4, a spike, 5, handwheel, 6, support disk, 7, butterfly nut, 8, ground, 9, inspection well cover bracket, 10, pad.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Manhole cover opening device includes: support (1), is positioned at bottom-right spike (4) of support, is positioned at the screw rod (2) of leg left end and is positioned at the structure such as pull bar (3) composition of support right-hand member, wherein prop up spike (4) and support (1) is fixed and is welded as a whole, screw rod top is handwheel (5), bottom is support disk (6), pull bar (3) upper position is arranged with butterfly nut (7), has circular gasket (10) to be sheathed on pull bar (3) between butterfly nut (7) and support (1) contact surface.
Described pull bar (3) top is fixed with support (1) connecting portion butterfly nut (7) and support (1), but very wide arc gap is left in the junction between connecting rod (3) and support (1), this gap is not more than the diameter of butterfly nut (7) lower gasket (10).
The contact surface of described support (1) lower support foot (4) and inspection well cover (9) is circular arc.
The effect of the structure that both the above is special is to facilitate screw rod (2) spiral lifting support
(1), time, the friction area of two above contact surface is reduced.
The present invention utilizes lever principle to carry out the unlatching operation of inspection well cover, and the intersection point of spike (4) centrage and support (1) center horizontal line is balance pivot a, in pull bar (3) centrage and support (1).
Claims (3)
1. manhole cover opening device includes: support (1), is positioned at bottom-right spike (4) of support, is positioned at the screw rod (2) of leg left end and is positioned at support and have the structure such as pull bar (3) composition of end, wherein prop up spike (4) with support (1) with being surely welded as a whole, screw rod top is handwheel (5), bottom is support disk (6), pull bar (3) upper position is arranged with butterfly nut (7), has circular gasket (10) to be sheathed on pull bar (3) between butterfly nut (7) and support (1) contact surface.
2. the manhole cover opening device according to claims 1, it is characterized in that, described pull bar (3) top is fixed with support (1) connecting portion butterfly nut (7) and support (1), but very wide arc gap is left in the junction between connecting rod (3) and support (1), this gap is not more than the diameter of butterfly nut (7) lower gasket (10).
3. the manhole cover opening device according to claims 1, it is characterised in that the contact surface of described support (1) lower support foot (4) and inspection well cover (9) is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510829799.XA CN105800528A (en) | 2015-11-25 | 2015-11-25 | Inspection well cover opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510829799.XA CN105800528A (en) | 2015-11-25 | 2015-11-25 | Inspection well cover opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105800528A true CN105800528A (en) | 2016-07-27 |
Family
ID=56466162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510829799.XA Pending CN105800528A (en) | 2015-11-25 | 2015-11-25 | Inspection well cover opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105800528A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921595A (en) * | 2018-07-19 | 2020-03-27 | 刘中雷 | Manhole cover opening device and method for municipal public facility maintenance |
| CN113264484A (en) * | 2021-07-21 | 2021-08-17 | 江苏沪玖电力材料有限公司 | Cover opening equipment for electric well cover |
-
2015
- 2015-11-25 CN CN201510829799.XA patent/CN105800528A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921595A (en) * | 2018-07-19 | 2020-03-27 | 刘中雷 | Manhole cover opening device and method for municipal public facility maintenance |
| CN110921595B (en) * | 2018-07-19 | 2021-03-23 | 安徽明诚建设项目管理有限公司 | Manhole cover opening device and method for municipal public facility maintenance |
| CN113264484A (en) * | 2021-07-21 | 2021-08-17 | 江苏沪玖电力材料有限公司 | Cover opening equipment for electric well cover |
| CN113264484B (en) * | 2021-07-21 | 2021-09-24 | 江苏沪玖电力材料有限公司 | Cover opening equipment for electric well cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |
|
| WD01 | Invention patent application deemed withdrawn after publication |