CN203186547U - Manhole protective cover - Google Patents
Manhole protective cover Download PDFInfo
- Publication number
- CN203186547U CN203186547U CN 201320064713 CN201320064713U CN203186547U CN 203186547 U CN203186547 U CN 203186547U CN 201320064713 CN201320064713 CN 201320064713 CN 201320064713 U CN201320064713 U CN 201320064713U CN 203186547 U CN203186547 U CN 203186547U
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- CN
- China
- Prior art keywords
- manhole
- protective frame
- clamp
- welded
- lid
- 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
A manhole protective cover comprises a cover body arranged on a manhole, and is characterized in that the cover body comprises a protective frame and a pedal mesh, wherein the protective frame and the pedal mesh are welded into a whole. A fixture which is matched with an open pore free edge of the manhole and used for carrying out fixation and limitation on the cover body is arranged at one end of the protective frame. The fixture is formed by a pallet and a tightening nut. The pallet is of a U-shaped structure formed by an upper clamping plate, a lower clamping plate and a baffle in a welded mode. One end of the protective frame is sleeved in a U-shaped opening of the pallet and is limited by the baffle. A thread hole matched with a tightening bolt is formed in the upper clamping plate. The pallet is arranged on the open pore free edge of the manhole in a clamping mode, and the pallet and the cover body can be fixed on the manhole through screwing up the tightening bolt. The manhole protective cover is simple in structure, convenient to install, simple in operation, capable of being used repeatedly, safe, environment-friendly, easy to manufacture and daily maintain, fewer in used materials, and low in manufacturing cost.
Description
Technical field
The utility model relates to a kind of over cap, specifically is a kind of manhole over cap, is used for ship building and repair procedures and uses.
Background technology
Fast development along with shipbuilding industry; safety performance to boats and ships is also more and more paid attention to; in ship building and repair procedures; manhole generally includes two kinds of circular manhole and oval manholes; it is the necessary channel that the production and construction personnel pass in and out operations such as the closed cabin cabinet overhauls, construction; permanent and the volatile manhole of all horizontal directions must add safeguard procedures and cause industrial injury to prevent the production and construction personnel because falling because of carelessness on the hull, and general manhole safety method generally takes to add the mode of steel pipe scaffold guardrail on the existing hull structure.The shortcoming of this mode is: the steel pipe scaffold guardrail is heavy, and steel pipe is shouldered into the cabin by the built workman one by one wastes time and energy, and often sets up inconvenience because the space, cabin is narrow and small, often can not in time set up, influence construction speed.
The existing patent No. is the Chinese utility model patent " a kind of boats and ships manhole over cap " of CN201120215469.9; comprise baffle plate, the collar, base plate, fixed orifice, round steel and screw; baffle plate is fixed together by welding and the collar; be inserted with round steel in the collar; round steel is fixed together by welding and base plate; the base plate left side is provided with fixed orifice, and screw is installed on the collar.Baffle plate be shaped as circle or Long Circle; Round steel and the collar are free-running fit; Round steel also can be tubing.Above boats and ships people hole path, be provided with over cap; when personnel come in and go out, can prevent by above the article that fall down pound; screw on the base plate can with the manhole cover base on bolt with nut fastening, use suitable convenience, can protect crewman's personal safety well.But this structure mainly be the protection personnel when coming in and going out manhole not by above the article that fall down pound, be not to design in order to prevent that personnel from falling.Therefore be necessary existing safeguard procedures are improved.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of simple in structure, manhole over cap that cost is low, quick and easy for installation is provided at the above-mentioned state of the art.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of manhole over cap; comprise lid; it is characterized in that: described lid comprises protective frame and pedal net; described protective frame and pedal net are integrally welded, and an end of described protective frame is provided with to match with the perforate free edge of manhole fixes spacing anchor clamps to lid.
As improvement, described anchor clamps screw nut by a clamp and and form, described clamp is by train wheel bridge, lower plate and the baffle plate U-shaped structure that is welded, one end of described protective frame is socketed in the U-shaped opening of described clamp and is undertaken spacing by described baffle plate, described train wheel bridge is provided with and screws the tapped bore that bolt matches, described clamp is installed on the perforate free edge of manhole, screws bolt described clamp and described lid are fixed on the manhole by tightening.
As improvement, the top of described train wheel bridge be welded with one with described tapped bore coaxial, for increasing the nut of height of screw thread, the described upper end that screws bolt is provided with is convenient to the handle that hand rotates.
Improve again, be welded with one on the coupling end of described protective frame and described clamp and open ring.
At last, described protective frame is circular or oval, and the size of described protective frame is greater than the size of manhole.
Compared with prior art, advantage of the present utility model is: the utility model is easy for installation, has realized setting up rapidly in ship building and repair procedures the purpose of manhole over cap, and simple to operate, can reuse safety and environmental protection; Simultaneously simple in structure, be easy to make and daily attention, only 4 kilograms of covering device weight, the material of use is few, and cost of manufacture is low, can be adapted in ship building and the repair procedures, uses when setting up safeguard procedures on the manhole in the horizontal direction.
Description of drawings
Fig. 1 is the installation perspective view of oval manhole over cap among the utility model embodiment;
Fig. 2 is the birds-eye view of oval manhole over cap among the embodiment;
Fig. 3 is the birds-eye view of circular manhole over cap among the embodiment;
Fig. 4 is the lateral plan of oval manhole over cap among the embodiment;
Fig. 5 is the lateral plan of circular manhole over cap among the embodiment;
Fig. 6 is the node scheme drawing of protective frame and pedal net welding among the embodiment.
The specific embodiment
Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.
As shown in the figure, a kind of manhole over cap comprises lid 1 and anchor clamps, and lid 1 is to be welded by protective frame 11, pedal net 12 and unlatching ring 13, wherein protective frame 11 usefulness
Round steel is made, and its size makes protective frame 11 can be placed on the manhole top greater than the size of manhole, the shape of protective frame 11 has circular and oval two kinds, pedal net 12 usefulness expanded metal laths are made, expanded metal lath specification 3.5mm * 40mm, and pedal net 12 is fixed into one with protective frame 11 welding; Anchor clamps screw nut 3 by a clamp 2 and and form, wherein clamp 2 is by train wheel bridge 21, lower plate 22 and the baffle plate 23 U-shaped structure that is welded, the clear distance of the U-shaped opening of clamp 2 is 66mm, clean depth distance is 93mm, can satisfy the operating needs of most hull thicknesss of slab, wherein the size of train wheel bridge 21 and lower plate 23 be 12mm thick * 110mm length * 50mm is wide, baffle plate 22 be of a size of 12mm thick * 66mm height * 50mm is wide; One end of protective frame 11 is socketed in the U-shaped opening of clamp 2 and is undertaken spacing by baffle plate 22, offer and screw the tapped bore 211 that bolt 3 matches apart from end 40mm midway location on the train wheel bridge 21, the top of train wheel bridge 21 is welded with a nut 4 coaxial with tapped bore 211, arranging of nut 4 increases the thread contact height that screws bolt 3, increase the tight power of stinging, the upper end that screws bolt 3 is provided with is convenient to the handle 31 that hand rotates, clamp 2 is installed on the perforate free edge 5 of manhole like this, screw the tapped bore 211 that bolt 3 passes nut 4 and train wheel bridge 21 and make clamp 2 can be fastened on the perforate free edge 5 by tightening, simultaneously lid 1 is fixed on the manhole; Unlatching ring 13 is welded on the coupling end of protective frame 11 and clamp 2, opens ring 13 usefulness
Round steel is made, and is rectangle, and clean bore size is that 70mm length * 50mm is wide, is used for realizing the opening and closing of lid 1.
Because the size of most of circular manhole is
The size of most of oval manhole is that 600mm length * 400mm is wide, so circular protective frame 11 is made
It is wide that oval-shaped protective frame 11 is made 730mm length * 530mm.
When installing like this, as long as clamp 2 is installed on the perforate free edge 5 of manhole, make lid 1 cover on the manhole, rotation screws nut 3 just can be fixing with clamp 2, and that lid 1 is also fixed by baffle plate 22 is spacing, when needing to open, rotates and screws nut 3, make clamp 2 separate with perforate free edge 5, at this moment just lid 1 can be removed from manhole by portable unlatching ring 13.
Claims (5)
1. manhole over cap; comprise the lid that is arranged on the manhole; it is characterized in that: described lid comprises protective frame and pedal net; described protective frame and pedal net are integrally welded, and an end of described protective frame is provided with to match with the perforate free edge of manhole fixes spacing anchor clamps to lid.
2. manhole over cap according to claim 1; it is characterized in that described anchor clamps screw nut by a clamp and and form; described clamp is by train wheel bridge, lower plate and the baffle plate U-shaped structure that is welded; one end of described protective frame is socketed in the U-shaped opening of described clamp and is undertaken spacing by described baffle plate; described train wheel bridge is provided with and screws the tapped bore that bolt matches; described clamp is installed on the perforate free edge of manhole, screws bolt described clamp and described lid are fixed on the manhole by tightening.
3. manhole over cap according to claim 2, the top that it is characterized in that described train wheel bridge be welded with one with described tapped bore coaxial, for increasing the nut of height of screw thread, the described upper end that screws bolt is provided with is convenient to the handle that hand rotates.
4. according to claim 2 or 3 described manhole over caps, it is characterized in that being welded with one on the coupling end of described protective frame and described clamp opens ring.
5. according to claim 1 or 2 or 3 described manhole over caps, it is characterized in that described protective frame for circular or oval, the size of described protective frame is greater than the size of manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064713 CN203186547U (en) | 2013-02-05 | 2013-02-05 | Manhole protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064713 CN203186547U (en) | 2013-02-05 | 2013-02-05 | Manhole protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203186547U true CN203186547U (en) | 2013-09-11 |
Family
ID=49103426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320064713 Expired - Fee Related CN203186547U (en) | 2013-02-05 | 2013-02-05 | Manhole protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203186547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963925A (en) * | 2013-02-05 | 2014-08-06 | 舟山中远船务工程有限公司 | Manhole protective cover |
| CN107323616A (en) * | 2017-07-05 | 2017-11-07 | 海宁文硕科技咨询有限公司 | A kind of manhole protector of ship |
-
2013
- 2013-02-05 CN CN 201320064713 patent/CN203186547U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963925A (en) * | 2013-02-05 | 2014-08-06 | 舟山中远船务工程有限公司 | Manhole protective cover |
| CN107323616A (en) * | 2017-07-05 | 2017-11-07 | 海宁文硕科技咨询有限公司 | A kind of manhole protector of ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20180205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |