CN103321253A - Falling-prevention rotary inspection well protection cover - Google Patents
Falling-prevention rotary inspection well protection cover Download PDFInfo
- Publication number
- CN103321253A CN103321253A CN2013102498835A CN201310249883A CN103321253A CN 103321253 A CN103321253 A CN 103321253A CN 2013102498835 A CN2013102498835 A CN 2013102498835A CN 201310249883 A CN201310249883 A CN 201310249883A CN 103321253 A CN103321253 A CN 103321253A
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- CN
- China
- Prior art keywords
- outer ring
- ring body
- inner ring
- inspection shaft
- rotary inspection
- 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
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Abstract
The invention discloses a falling-prevention rotary inspection well protection cover which comprises an outer ring and an inner ring. The outer ring comprises an annular outer ring body, wherein the outer ring body protrudes toward an outer circumference side to form at least three angular lugs, and the outer ring body protrudes toward an inner circumference side to form at least three [-shaped socket pins. The inner ring comprises a round mesh-shaped inner ring body, wherein inlet bolts corresponding to the socket pins are arranged on the outer circumference side of the inner ring body. The falling-prevention rotary inspection well protection cover is arranged under an inspection well cover, so that people can be prevented from falling even if the inspection well cover is removed, and using safety of inspection wells is improved. The inner ring can be moved out or be rotated in place for fixing by rotating the inner ring, so that maintenance is facilitated, and the falling-prevention rotary inspection well protection cover is simple in structure and convenient to use.
Description
Technical field
The present invention relates to the rotary inspection shaft over cap of a kind of fall arrest.
Background technology
In inspection shaft is general there be dead size
Etc. plurality of specifications; Greater than
Inspection shaft, the people just might vertically fall down, and the person is caused potential safety hazard.
Summary of the invention
The technical issues that need to address of the present invention provide the rotary inspection shaft over cap of a kind of fall arrest, prevent that the people from falling, and improve the inspection shaft safety in utilization.
Technical scheme of the present invention is: the rotary inspection shaft over cap of fall arrest; comprise outer ring and inner ring; described outer ring comprises the outer ring body of annular; described outer ring body is given prominence to outer circumferential sides and is provided with at least three angle ears; described outer ring body inner circumferential side is along being circumferentially with at least three " ［ " type socket pins; described inner ring comprises circular netted inner ring body, and the corresponding described socket pin of described inner ring body outer circumferential sides is provided with the import tongue.
Preferably, described outer ring body is
The reinforced steel bar ring of reinforcing bar coiling, described angle ear are the rectangle iron plate that is weldingly fixed on the reinforced steel bar ring.
Preferably, described inner ring body by
Reinforcing bar is welded into netted, and described import tongue is the rectangle iron plate that is weldingly fixed on the inner ring body.
Preferably, the socket pin on the described outer ring is provided with three, and described angle ear is provided with four.
Preferably, the socket pin on the described outer ring and angle ear stagger mutually.
The present invention is arranged at inspection shaft lid below, even remove the inspection shaft lid, can prevent that also the people from falling, and has improved the safety that inspection shaft uses.And inner ring can be tripped out or is rotated in place fixing by the rotation inner ring, and made things convenient for maintenance, simple in structure, easy to use.
Description of drawings
Fig. 1 is the outer ring structure schematic diagram;
Fig. 2 is the inner ring structural representation;
Fig. 3 is the rotary inspection shaft over cap of fall arrest mounting structure schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further:
As shown in Figure 1 to Figure 3; the rotary inspection shaft over cap of fall arrest of the present invention comprises outer ring 1 and inner ring 2; described outer ring 1 comprises the outer ring body 10 of annular; described outer ring body is given prominence to outer circumferential sides and is provided with at least three angle ears 11; described outer ring body inner circumferential side is along being circumferentially with at least three " ［ " type socket pins 12; described inner ring 2 comprises circular netted inner ring body 20, and the corresponding described socket pin 12 of described inner ring body outer circumferential sides is provided with import tongue 21.Described outer ring body is
The reinforced steel bar ring of reinforcing bar coiling, described angle ear are the rectangle iron plate that is weldingly fixed on the reinforced steel bar ring.Described inner ring body by
Reinforcing bar is welded into netted, and described import tongue is the rectangle iron plate that is weldingly fixed on the inner ring body.Socket pin on the described outer ring is provided with three, and described angle ear is provided with four.Socket pin and angle ear on the described outer ring stagger mutually.
The mounting method of this over cap is: at first below the inspection shaft lid 30 of inspection shaft 3 outer ring 1 is installed, puts into inner ring 2 then, inner ring is concordant with the outer ring, and the import tongue of inner ring and the socket pin of outer ring stagger, and rotates inner ring at last import tongue insertion socket pin is got final product.30～70mm position, inspection shaft lid below is located in described outer ring.Described outer ring is embedded in advance in the inspection shaft wall or after the inspection shaft wall of having finished is got into the cave and fixes, and circular diameter lacks 20mm than inspection shaft lid diameter in the outer ring.
Claims (5)
1. the rotary inspection shaft over cap of fall arrest; it is characterized in that: comprise outer ring (1) and inner ring (2); described outer ring comprises the outer ring body (10) of annular; described outer ring body is to outstanding at least three the angle ears (11) that are provided with of outer circumferential sides; described outer ring body inner circumferential side is along being circumferentially with at least three " ［ " type socket pins (12); described inner ring comprises circular netted inner ring body (20), and the corresponding described socket pin of described inner ring body outer circumferential sides (12) is provided with import tongue (21).
2. the rotary inspection shaft over cap of fall arrest according to claim 1, it is characterized in that: described outer ring body is
The reinforced steel bar ring of reinforcing bar coiling, described angle ear are the rectangle iron plate that is weldingly fixed on the reinforced steel bar ring.
3. the rotary inspection shaft over cap of fall arrest according to claim 2 is characterized in that: described inner ring body by
Reinforcing bar is welded into netted, and described import tongue is the rectangle iron plate that is weldingly fixed on the inner ring body.
4. the rotary inspection shaft over cap of fall arrest according to claim 3, it is characterized in that: the socket pin on the described outer ring is provided with three, and described angle ear is provided with four.
5. the rotary inspection shaft over cap of fall arrest according to claim 4, it is characterized in that: socket pin and angle ear on the described outer ring stagger mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102498835A CN103321253A (en) | 2013-06-20 | 2013-06-20 | Falling-prevention rotary inspection well protection cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102498835A CN103321253A (en) | 2013-06-20 | 2013-06-20 | Falling-prevention rotary inspection well protection cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103321253A true CN103321253A (en) | 2013-09-25 |
Family
ID=49190276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102498835A Pending CN103321253A (en) | 2013-06-20 | 2013-06-20 | Falling-prevention rotary inspection well protection cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103321253A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7303354B1 (en) * | 2006-09-21 | 2007-12-04 | Decroix Steven | Temporary manhole cover |
| CN201045191Y (en) * | 2007-04-23 | 2008-04-09 | 王振国 | Manhole cover theft preventing installation |
| CN201077998Y (en) * | 2007-08-20 | 2008-06-25 | 王锐午 | Noctilucent cover for manhole |
| CN201546241U (en) * | 2009-11-30 | 2010-08-11 | 凌达伟 | Manhole cover |
| CN203270626U (en) * | 2013-06-20 | 2013-11-06 | 浙江海天建设集团有限公司 | Anti-falling rotary type inspection well protective cover |
-
2013
- 2013-06-20 CN CN2013102498835A patent/CN103321253A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7303354B1 (en) * | 2006-09-21 | 2007-12-04 | Decroix Steven | Temporary manhole cover |
| CN201045191Y (en) * | 2007-04-23 | 2008-04-09 | 王振国 | Manhole cover theft preventing installation |
| CN201077998Y (en) * | 2007-08-20 | 2008-06-25 | 王锐午 | Noctilucent cover for manhole |
| CN201546241U (en) * | 2009-11-30 | 2010-08-11 | 凌达伟 | Manhole cover |
| CN203270626U (en) * | 2013-06-20 | 2013-11-06 | 浙江海天建设集团有限公司 | Anti-falling rotary type inspection well protective cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |