CN203594093U - Falling-proof concrete grid structure - Google Patents
Falling-proof concrete grid structure Download PDFInfo
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- CN203594093U CN203594093U CN201320493461.8U CN201320493461U CN203594093U CN 203594093 U CN203594093 U CN 203594093U CN 201320493461 U CN201320493461 U CN 201320493461U CN 203594093 U CN203594093 U CN 203594093U
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- concrete
- grid structure
- rib
- network frame
- diagonal ribs
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Abstract
The utility model discloses a falling-proof concrete grid structure which is round in the outer shape. Concrete and built-in steel bars form a hollow frame structure, a round rib and crossing ribs form the concrete grid structure, and a plurality of large holes (notches) are arranged between the round rib and the crossing ribs and among the crossing ribs. A hole between rib plates enables rain water to flow into a sewer, and drainage function of an inspection well is not influenced. An open groove is reserved in the round rib for mounting and fixing inside a well hole. 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, specifically a kind of anti-fall rack of drain well.
[background technology]
Underdrainage system is the important urban operating mechanism in city, inspection shaft (manhole) connects subsoil drain and earth's surface, on urban road, just has an inspection shaft every tens meters of distances, in bustling location or population Residential concentration area, inspection shaft spreads all over the place especially.But, the well lid overwhelming majority or the casting iron well lid that on inspection shaft, use at present.Because cast iron has recoverable value, easily caused losing by pilferage.Cast iron belongs to fragile material, and long service can cause metal fatigue, or is subject to the frequent impact of high speed heavy vehicle, easily chipping and lose effectiveness.In addition, when flood is larger, 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 there is rainy day flood pedestrian is poured to inspection shaft and causes injury the tragedy of dying.Therefore research and develop the anti-fall technology of inspection shaft, avoid pedestrian and vehicle after manhole cover loss to crash into the injury that inspection shaft causes, there is important social effect.Although there is at present Antifalling down net for manhole, for example Chinese utility model patent CN200920076721, CN200920231708, CN201220265955, these anti-drop nets can play certain safeguard function that plays, but this anti-drop net uses fibrous material, it is easily aging, cause losing efficacy, application life is 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 safety anti-falling device for pedestrian and vehicle.
The technical solution adopted in the utility model is as described below.
A kind of anti-fall concrete network frame, this concrete network frame outline is rounded, form frame construction by concrete and built-in reinforcing bar, it is characterized in that being formed by circle rib and diagonal ribs, enclosing between rib and diagonal ribs, between each diagonal ribs, some macropores be set, 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 reserved U-shaped fluting in circle rib bottom surface, U-shaped fluting is for installing and fix this concrete network frame at inspection shaft.The macropore arranging between circle rib and diagonal ribs is circular hole, rectangular opening or its combination, and the macropore arranging at diagonal ribs center is circular hole, rectangular opening.Concrete material is self-compacting concrete or high-strength lightweight aggregate concrete or high-strength concrete.
A kind of anti-fall concrete network frame, this concrete network frame outline is rounded, it is characterized in that becoming frame construction by RPC material (Reactive powder concrete), concrete network frame is by enclosing rib and diagonal ribs forms, enclosing between rib and diagonal ribs, between each diagonal ribs, some macropores be set, 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 reserved U-shaped fluting in circle rib bottom surface, U-shaped fluting is for installing and fix this concrete network frame at inspection shaft.The macropore arranging between circle rib and diagonal ribs is circular hole, rectangular opening or its combination, and the macropore arranging at diagonal ribs center is circular hole, rectangular opening.
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 when use, 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 pedestrian 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 the embodiment of the utility model concrete network frame shown in Fig. 1 and Fig. 2, circle rib 1 and diagonal ribs 2 use reinforcing bar and concrete (or using RPC) to pour into an overall structure, reserved macropore 3 between circle rib 1 and diagonal ribs 2, reserved macropore 4 between diagonal ribs, reserved U-lag 5 on the bottom surface of circle rib.
When the anti-fall net frame of this concrete is in the time that existing inspection shaft is transformed, can below existing inspection Cover of inspection well, on the borehole wall, expansion bolt be set, U-lag on concrete net bobbin rib is arranged on expansion bolt fixing.In needs enter inspection shaft Inspection well time, take off concrete network frame from bolt.
When the anti-fall net frame of this concrete is during in newly-built inspection shaft, can adopt two kinds of mounting methods, a kind of is to adopt above-mentioned use expansion bolt to install to fix, and 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.
In accompanying drawing 3 the utility model embodiment, employing be the mounting method of cushion cap.6 look into well lid for danger, and 7 is road surface, and 8 for checking the borehole wall, and 9 is cushion cap.In the time installing and using the utility model, this concrete network frame is arranged on the well lid 6 below boreholes wall 8.
In accompanying drawing 4 the utility model embodiment, employing be the mounting means with expansion bolt.6 is manhole cover, and 7 is road surface, and 8 is the manhole borehole wall.In the time installing and using the utility model, first expansion bolt 10 is installed on the borehole wall 8, then this concrete network frame is arranged on expansion bolt 10.
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 inspection shaft 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, thereby 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 its 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.), and raw materials is common material, can gather materials on the spot, and is conducive to reduce production costs.The utility model encloses rib diameter and diagonal ribs quantity by change, and regulates quantity and the shape of reserved macropore, meets easily the inspection shaft needs of different size.
Claims (6)
1. an anti-fall concrete network frame; this concrete network frame outline is rounded; form frame construction by concrete and built-in reinforcing bar; it is characterized in that being formed by circle rib and diagonal ribs; enclosing between rib and diagonal ribs, between each diagonal ribs, some macropores be set; the area in each hole is less than 250 square centimeters, the reserved U-shaped fluting in circle rib bottom surface, and concrete material is self-compacting concrete or high-strength lightweight aggregate concrete or high-strength concrete.
2. an anti-fall concrete network frame, this concrete network frame outline is rounded, it is characterized in that becoming frame construction by RPC material, concrete network frame is by enclosing rib and diagonal ribs forms, enclosing between rib and diagonal ribs, between each diagonal ribs, some macropores be set, the area in each hole is less than 250 square centimeters, the reserved U-shaped fluting in circle rib bottom surface.
3. anti-fall concrete network frame as claimed in claim 1, is characterized in that the macropore arranging between circle rib and diagonal ribs is circular hole, rectangular opening or its combination, and the macropore arranging at diagonal ribs 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 diagonal ribs is circular hole, rectangular opening or its combination, and the macropore arranging at diagonal ribs 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 |
|---|---|---|---|
| CN201320493461.8U CN203594093U (en) | 2013-08-05 | 2013-08-05 | Falling-proof concrete grid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493461.8U CN203594093U (en) | 2013-08-05 | 2013-08-05 | Falling-proof concrete grid structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594093U true CN203594093U (en) | 2014-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320493461.8U Expired - Fee Related CN203594093U (en) | 2013-08-05 | 2013-08-05 | Falling-proof concrete grid structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069634A (en) * | 2017-02-21 | 2017-08-18 | 深圳供电局有限公司 | A kind of cable duct leakproof net cover structure |
-
2013
- 2013-08-05 CN CN201320493461.8U patent/CN203594093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069634A (en) * | 2017-02-21 | 2017-08-18 | 深圳供电局有限公司 | A kind of cable duct leakproof net cover structure |
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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 |