CN2412928Y - Safety manhole cover - Google Patents
Safety manhole cover Download PDFInfo
- Publication number
- CN2412928Y CN2412928Y CN 00209528 CN00209528U CN2412928Y CN 2412928 Y CN2412928 Y CN 2412928Y CN 00209528 CN00209528 CN 00209528 CN 00209528 U CN00209528 U CN 00209528U CN 2412928 Y CN2412928 Y CN 2412928Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- lifting slider
- pair
- well lid
- protection safety
- 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
Links
Abstract
The utility model provides a double safety manhole cover for the technical field of buildings. The utility model is characterized in that improvement is added on the basis of an existing manhole cover. A lifting hole is vertically arranged at one end of a cover base. A lifting slider is sheathed in the lifting hole. Upward movement blocking projection is arranged on the lifting slider. The upper part of the upward movement blocking projection is U-shaped. The head of a cover plate of the manhole cover is inlaid in the upper part of the upward movement blocking projection. Half-through pinholes are arranged on both inner sides of the upper part of the lifting slider. Pin holes are horizontally arranged on the head of the cover plate. Outer and elastic pin shafts are serially arranged between the pin holes and the half-through pin holes. Compared with an exist anti-theft manhole cover, the utility model has the advantages of higher anti-theft performance, 180 DEG turnover, convenient operation in construction, safety, etc.
Description
The utility model belongs to technical field of buildings, is a kind of pair of protection safety well lid.
All kinds of engineering supervision well well lids on the present domestic town road, and the water conservancy well lid in rural area etc. all are the theft-prevention structures that adopts chain, arm-tie, wears pin or two-way lockset, clamps, sawed, pounded easily, method destruction such as sled, thus stolen easily.Simultaneously, these well lids all have a very big drawback, are exactly after well lid is opened, or effort gas is taken away or flip angle is little, is difficult to reach more than 135 ° of GB regulation, and well lid may fasten automatically, injures the constructor by a crashing object, or causes the down-hole unsafe factor.
It is stronger that the purpose of this utility model provides a kind of anti-prizing and stealing property, on to turn over angle big, constructing operation is convenient, safe and reliable well lid.
Technical solution adopted in the utility model is improved on the basis of existing well lid, vertically offers lift span at well lid pedestal one end, and lift span is nested with lifting slider, and it is protruding that lifting slider is provided with only last retaining, and its top is the U type, embedded well lid cover plate head; The lifting slider upper inner offers semi-transparent pin-and-hole; The cover plate head is laterally offered pin-and-hole, and string is provided with the outer bearing pin that plays between pin-and-hole and the semi-transparent chain hole.Retaining is protruding under the lift span inwall only also is provided with.The front portion of cover plate head is provided with the R arc.The cover plate of cover plate head offside is provided with latch lock, and the retaining of dead bolt and cage is along inconsistent.The key of latch lock is provided with carrying handle.
Because the utility model taked technique scheme, compare with existing anti-stealing manhole cover, it is stronger to have the anti-performance of prizing and stealing, and turning 180 °, advantage such as constructing operation is convenient, and is safe and reliable.
Below in conjunction with accompanying drawing and example specific structural features of the present utility model is described further.
Fig. 1 represents general assembly structural representation of the present utility model.
Fig. 2 represents that side of the present utility model cuts open structural representation.
Fig. 3 represents the utility model lifting slider structural representation.
Fig. 4 represents the utility model lifting slider plan structure schematic diagram.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utlity model has cage 1, the retaining of cage 1 inner ring is provided with cover plate 3 along 2 seats of honour, vertically is provided with a plurality of reinforcements on the outer 4 of cage 1 and carves 5.One end of cage 1 offers lift span 6, the lift span 6 embedded lifting sliders 7 that are with, and the lower end of lifting slider 7 is provided with that end to go up retaining protruding 8, ends there is 2-6cm the upper edge of going up retaining protruding 8 along 2 lower edges apart from the cage retaining spacing.The top of lifting slider 7 is the U type, the cover plate head 9 of inner casing cover plate 3, and the outer end of cover plate head 9 is provided with the R arc.The inwall of lift span 6 is provided with and ends retaining protruding 10 down.Two inboards on lifting slider 7 tops offer semi-transparent pin-and-hole 11, cover plate head 9 laterally offers penetrating pin-and-hole 12, be arranged with two bearing pins 13 in the lockhole 12, be provided with the outer spring 14 that plays between two bearing pins 13, the outer end of two bearing pins 13 is set in the semi-transparent pin-and-hole 11, the cover plate 3 of cover plate head 9 offsides is provided with latch lock 15, and the retaining of the dead bolt of latch lock 15 and cage 1 is inconsistent along 2.The key of cylinder lock 15 is provided with carrying handle.The side of lifting slider 7 offers gap 16, is used for cooperating ending down keeping off protruding 10.
If gap 16 is non-penetrating gap, thus can utilize the gap lower edge so and end down the lower edge of retaining protruding 8 match end on, the lower edge of gap 16, it is protruding to go up retaining till promptly.
Claims (6)
1, a kind of pair of protection safety well lid has cage and cover plate, it is characterized in that vertically offering lift span at cage one end, and lift span is nested with lifting slider, and it is protruding that lifting slider is provided with only last retaining, and its top is the U type, embedded well lid cover plate head; Two inboards, lifting slider top offer semi-transparent pin-and-hole; The cover plate head is laterally offered pin-and-hole, and string is provided with the outer bearing pin that plays between pin-and-hole and the semi-transparent hole.
2, a kind of pair of protection safety well lid as claimed in claim 1 is characterized in that retaining is protruding under the lift span inwall only also is provided with.
3, a kind of pair of protection safety well lid as claimed in claim 1 or 2 is characterized in that the leading section of cover plate head is provided with the R arc.
4, as claim 1 or 2 or 3 described a kind of pair of protection safety well lids, it is characterized in that the cover plate of cover plate head offside is provided with latch lock, the retaining of dead bolt and cage is along inconsistent.
5, as claim 1 or 2 or 3 or 4 described a kind of pair of protection safety well lids, it is characterized in that the side of lifting slider offers gap.
6, a kind of pair of protection safety well lid as claimed in claim 4 is characterized in that the key of described latch lock is provided with carrying handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209528 CN2412928Y (en) | 2000-04-19 | 2000-04-19 | Safety manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209528 CN2412928Y (en) | 2000-04-19 | 2000-04-19 | Safety manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2412928Y true CN2412928Y (en) | 2001-01-03 |
Family
ID=33576621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00209528 Expired - Fee Related CN2412928Y (en) | 2000-04-19 | 2000-04-19 | Safety manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2412928Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684655B (en) * | 2008-09-26 | 2011-05-25 | 牡丹江水力发电总厂 | Multifunctional pit protective cover plate |
| CN101177946B (en) * | 2006-11-06 | 2012-12-19 | 诺林科公司 | Pavement hole closing device for cover with supporting frame |
| CN104480971A (en) * | 2014-12-10 | 2015-04-01 | 苏州汇诚智造工业设计有限公司 | Anti-theft safety well lid and manufacturing method thereof |
| CN114960760A (en) * | 2021-02-26 | 2022-08-30 | 福建汇钜金属制品有限公司 | Urban underground well-cover convenient to maintain |
-
2000
- 2000-04-19 CN CN 00209528 patent/CN2412928Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177946B (en) * | 2006-11-06 | 2012-12-19 | 诺林科公司 | Pavement hole closing device for cover with supporting frame |
| CN101684655B (en) * | 2008-09-26 | 2011-05-25 | 牡丹江水力发电总厂 | Multifunctional pit protective cover plate |
| CN104480971A (en) * | 2014-12-10 | 2015-04-01 | 苏州汇诚智造工业设计有限公司 | Anti-theft safety well lid and manufacturing method thereof |
| CN114960760A (en) * | 2021-02-26 | 2022-08-30 | 福建汇钜金属制品有限公司 | Urban underground well-cover convenient to maintain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |