CN203594094U - Falling-proof concrete grid structure - Google Patents
Falling-proof concrete grid structure Download PDFInfo
- Publication number
- CN203594094U CN203594094U CN201320493481.5U CN201320493481U CN203594094U CN 203594094 U CN203594094 U CN 203594094U CN 201320493481 U CN201320493481 U CN 201320493481U CN 203594094 U CN203594094 U CN 203594094U
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- concrete
- rib
- grid structure
- macropore
- network frame
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Abstract
The utility model discloses a falling-proof concrete grid structure. Concrete and built-in steel bars form a hollow frame structure; a triangular rib and a round rib are crossed to form the concrete grid structure; a large hole is arranged between the round rib and the triangular rib; a large hole is arranged in the center of the triangular rib; and a U-shaped groove is reserved on the bottom face of the upper end part of the triangular rib. The concrete grid structure is arranged inside an inspection well and below a manhole cover. The falling-proof concrete grid structure can be applied to a newly-built inspection well and can also be applied to reconstruction of a well-built inspection well, the installation is easy and the use is convenient. In the case when the manhole cover is missing or broken, or the manhole cover is washed away due to flood, pedestrians or vehicles can be prevented from falling in the well due to the concrete grid structure, casualties and property losses are avoided, and safety is improved. The concrete grid structure can adopt self-compacting concrete, reactive powder concrete, ceramsite concrete, common concrete and the like. The concrete grid structure is durable, fireproof, aging-resisting and long in service life, easy in manufacturing and low in cost.
Description
[technical field]
The utility model relates to a kind of servicing unit of drain well, is specifically related to a kind of anti-fall rack of drain well.
[background technology]
Drain well (manhole) is the important drainage in city.The well lid overwhelming majority or the casting iron well lid that on inspection shaft, use at present.Because cast iron has recoverable value, pilferage event happens occasionally.Cast iron belongs to fragile material, and long service can cause metal fatigue, or is frequently subject to the frequent impact of high speed heavy vehicle, easily chipping and ineffective.While happening suddenly in addition flood, well lid also may be flushed away.Due to manhole cover loss, cause pedestrian or vehicle accidentally to fall into inspection shaft and cause the event of personnel's disability and property loss to occur repeatedly, even at rainy day flood, pedestrian is poured to inspection shaft and causes missing tragedy.Therefore research and develop inspection shaft guard technology, avoid pedestrian and vehicle after manhole cover loss to crash into the injury causing, there is very important social effect.Current existing anti-drop net uses fibrous material to make, for example Chinese utility model patent CN200920076721, CN200920231708, the disclosed Antifalling down net for manhole of CN201220265955, can play certain safeguard function that plays, but it is easily aging, cause losing efficacy, use birthday noodle shorter.
[summary of the invention]
The utility model object is to provide a kind of simple in structure, easy for installation, anticorrosive aging, good endurance, economic environmental protection, can provides permanent effectively safe anti-falling for pedestrian and vehicle.
The technical solution adopted in the utility model is as described below.
A kind of anti-fall concrete network frame, form hollow frame structure by concrete and built-in reinforcing bar, this concrete network frame is intersected and is formed by a triangle rib and a round rib, between circle rib and triangle rib, be provided with macropore, center at triangle rib is provided with macropore, the area in each hole is less than 250 square centimeters, and the area that preferred scheme is wherein each hole is less than 200 square centimeters.The macropore arranging between circle rib and triangle rib is circular hole, rectangular opening or its combination, and the macropore arranging at triangle rib center is circular hole, rectangular opening.The reserved U-shaped fluting in bottom surface, triangle rib end, U-shaped fluting is for installing and fix this concrete network frame at inspection shaft.Concrete material is self-compacting concrete or high-strength lightweight aggregate concrete or high-strength concrete.
A kind of anti-fall concrete network frame, become hollow frame structure by concrete material, this concrete network frame is intersected and is formed by a triangle rib and a round rib, concrete material is RPC (Reactive powder concrete), between circle rib and triangle rib, be provided with macropore, center at triangle rib is provided with macropore, and the area in each hole is less than 250 square centimeters, and the area that preferred scheme is wherein each hole is less than 200 square centimeters.The macropore arranging between circle rib and triangle rib is circular hole, rectangular opening or its combination, and the macropore arranging at triangle rib center is circular hole, rectangular opening.The reserved U-shaped fluting in bottom surface, triangle rib end, U-shaped fluting is for installing and fix this concrete network frame at inspection shaft.
The anti-fall rack of this concrete is suitable for newly-built inspection shaft (manhole), is also suitable for the transformation of the inspection inspection shaft (manhole) of having built up, and is arranged on the below of well lid, installs easily, easy to use.When stolen loss appears in the manhole cover on ground or road surface, or flood is while washing away well lid while occurring, and this concrete network frame can play pedestrian and prevent from falling in well, improves safety.
[accompanying drawing explanation]
Fig. 1 is the top view of the anti-fall rack of the utility model concrete.
Fig. 2 is the upward view of the anti-fall rack of the utility model concrete.
Fig. 3 is the schematic diagram that the utility model cushion cap mode is installed.
Fig. 4 is the schematic diagram that the utility model expansion bolt mode is installed.
[specific embodiment]
In this practical embodiment of Fig. 1 and Fig. 2, circle rib 1 and triangle rib 2 use reinforcing bar and concrete (or RPC) to pour into an overall structure, reserved large scallop hole 3 between circle rib 1 and triangle rib 2, reserved big hole 4 on triangle rib, reserved U-lag 5 on the bottom surface of circle rib.
In accompanying drawing 3 embodiment of the present utility model, employing be the mounting means of cushion cap.6 is the well lid of manhole, and 7 is the manhole borehole wall, and 8 is cushion cap.In the time installing and using the utility model, this concrete network frame is arranged on the cushion cap 8 of the well lid 6 below boreholes wall 7.
In accompanying drawing 4 embodiment of the present utility model, employing be the mounting method with expansion bolt.6 is the well lid of manhole, and 7 is the manhole borehole wall, and 9 is expansion bolt.In the time installing and using the utility model, this concrete network frame is arranged on the well lid 6 below boreholes wall 7 and sets in advance expansion bolt 9, and concrete network frame is arranged on expansion bolt 9.
When the anti-fall net frame of this concrete is in the time that existing manhole is transformed, can below existing manhole well lid, on the borehole wall, expansion bolt be set, U-lag on concrete net bobbin rib is placed on expansion bolt fixing.In needs enter manhole time, take off concrete network frame from bolt.
When the anti-fall net frame of this concrete is during in newly-built manhole, can adopt the one of two kinds of above-mentioned mounting methods, a kind of is to adopt above-mentioned use expansion bolt to install to fix, another method is that a circle cushion cap is set on the borehole wall of manhole, directly the circle rib of concrete network frame is placed on cushion cap.When underground construction or the review of operations, take out anti-drop net, operation is complete, restores to the original state, time saving and energy saving.
This concrete network frame is arranged on the position of well lid below 10cm～50cm, so that the installation and removal in use procedure.The size of concrete network frame can be come previously prepared mould moulding by casting according to the size of borehole wall diameter.Concrete compressive strength is greater than 30MPa.
The anti-fall rack tool of the utility model concrete has the following advantages:
The utility model can be installed in drain well, inspection well cover lose or fragmentation after prevent that pedestrian or vehicle from falling in well, prevent from causing personnel and property loss, the cavity between floor can make rainwater flow into sewer, does not affect the function of flood drainage of inspection shaft.Concrete of the present utility model can adopt self-compacting concrete, RPC, high-strength lightweight aggregate concrete etc.This concrete network frame is durable, fire prevention, anti-aging, long service life.Easily manufacture, cost is low.
The advantages such as the anti-fall rack of the utility model concrete is lightweight, bearing capacity is high, durability is high, sectional dimension is little, convenient unlatching, can be used for a long time.The inner steel content of the anti-fall rack of the utility model concrete is few, if do not contain reinforcing bar while using RPC material, therefore recovery value is little, is not easy stolen loss.The concrete of the anti-fall rack of the utility model concrete can trade waste (slag, flyash, silicon ash etc.), environmental protection.Raw materials is common material, can gather materials on the spot, and is conducive to reduce production costs.The utility model is by the size of change concrete network frame, and quantity and the shape of the reserved macropore of adjusting, can meet the inspection shaft needs of different size.
Claims (6)
1. an anti-fall concrete network frame; form hollow frame structure by concrete and built-in reinforcing bar; it is characterized in that concrete network frame is intersected and formed by a triangle rib and a round rib; between circle rib and triangle rib, be provided with macropore; center at triangle rib is provided with macropore; the area in each hole is less than 250 square centimeters, the reserved U-shaped fluting in bottom surface, triangle rib end, and concrete material is self-compacting concrete or high-strength lightweight aggregate concrete or high-strength concrete.
2. an anti-fall concrete network frame, become hollow frame structure by concrete material, it is characterized in that concrete network frame is intersected and formed by a triangle rib and a round rib, concrete material is RPC, between circle rib and triangle rib, be provided with macropore, center at triangle rib is provided with macropore, and the area in each hole is less than 250 square centimeters, the reserved U-shaped fluting in bottom surface, triangle rib end.
3. anti-fall concrete network frame as claimed in claim 1, is characterized in that the macropore arranging between circle rib and triangle rib is circular hole, rectangular opening or its combination, and the macropore arranging at triangle rib center is circular hole, rectangular opening.
4. anti-fall concrete network frame as claimed in claim 2, is characterized in that the macropore arranging between circle rib and triangle rib is circular hole, rectangular opening or its combination, and the macropore arranging at triangle rib center is circular hole, rectangular opening.
5. anti-fall concrete network frame as claimed in claim 1, is characterized in that wherein the area in each hole is less than 200 square centimeters.
6. anti-fall concrete network frame as claimed in claim 2, is characterized in that wherein the area in each hole is less than 200 square centimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493481.5U CN203594094U (en) | 2013-08-05 | 2013-08-05 | Falling-proof concrete grid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493481.5U CN203594094U (en) | 2013-08-05 | 2013-08-05 | Falling-proof concrete grid structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594094U true CN203594094U (en) | 2014-05-14 |
Family
ID=50674990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320493481.5U Expired - Fee Related CN203594094U (en) | 2013-08-05 | 2013-08-05 | Falling-proof concrete grid structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594094U (en) |
-
2013
- 2013-08-05 CN CN201320493481.5U patent/CN203594094U/en not_active Expired - Fee Related
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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: 20140514 Termination date: 20160805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |