CN203795469U - Anti-drop structure for inspection well - Google Patents
Anti-drop structure for inspection well Download PDFInfo
- Publication number
- CN203795469U CN203795469U CN201420139704.2U CN201420139704U CN203795469U CN 203795469 U CN203795469 U CN 203795469U CN 201420139704 U CN201420139704 U CN 201420139704U CN 203795469 U CN203795469 U CN 203795469U
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- China
- Prior art keywords
- protective cover
- load
- inspection shaft
- bearing
- bracing frame
- 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 - Lifetime
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- 238000007689 inspection Methods 0.000 title claims abstract description 38
- 230000001681 protective effect Effects 0.000 claims abstract description 70
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses an anti-drop structure for an inspection well. The anti-drop structure comprises a load-bearing protective cover and two protective cover support frames. Two snap connecting portions are arranged on the outer side of the lower end surface of the load-bearing protective cover and are in central symmetry with each other; the two protective cover support frames are symmetrically arranged on the inner wall of an inspection wellhead, the upper end surfaces of the protective cover support frames are load-bearing protective cover support surfaces, each protective cover support frame comprises a middle connecting section and arc-shaped sections, and the arc-shaped sections of each protective cover support frame outwardly extend from two ends of the middle connecting section of the protective cover support frame and are used for being connected with the inner wall of the inspection wellhead. The anti-drop structure has the advantages that pedestrians or objects can be effectively prevented from dropping into the inspection well under the condition that an inspection well lid is stolen or is opened for emergency drainage, and accordingly personal and property loss can be prevented; the anti-drop structure is provided with the two protective cover support frames and is small in occupied inspection wellhead space, and obstruction on staffs who descend the well can be reduced on the premise that the effective lapping area is guaranteed.
Description
Technical field
The utility model relates to a kind of inspection shaft anti-falling structure, prevents that pedestrian or object from crashing into well from catch pit port.
Background technology
Inspection shaft is the turning, the branch that are used in drainage pipe, fall etc. locates, so that check, the well of dredging use, formal name used at school is in manhole.In like manner, be embedded in underground telecommunication cable manhole, power cable manhole, is also inspection shaft.
The well head of inspection shaft is all provided with inspection well cover, and existing inspection well cover adopts cast iron to make mostly, is worth because material has to recycle, and often stolen, loss situation is serious.In addition, cause urban road when immersion when running into continuous heavy rain, people's custom is opened inspection well cover to accelerate draining, loses the import of inspection well cover, and pedestrian or object that ground occurs often crash into the accident in inspection shaft, cause loss of personal property.
Chinese patent mandate publication number CN 2718072Y discloses a kind of Antifalling down net for manhole, comprises well seat, has the soft string bag being connected with well seat, and this structure energy advantage is: in the situation that inspection well cover is lost, it can prevent that pedestrian or object from crashing in well effectively; When need to meet an urgent need draining when urban road immersion, also can prevent that pedestrian or larger object from crashing in well even if open well lid.But owing to being subject to the restriction of the material of the soft string bag own, the in the situation that of long-time use, there is the phenomenon of being polluted by Sewage Environment in the soft string bag.
Utility model content
For the problems referred to above, the utility model provides a kind of inspection shaft anti-falling structure, crashes into the problem in inspection shaft to solve in prior art pedestrian or object.
To achieve these goals, the technical solution of the utility model is as follows:
Inspection shaft anti-falling structure, is characterized in that, comprises that the lower surface arranged outside of described load-bearing protective cover has two groups of snap fit connecting portions in order to support the protective cover bracing frame of load-bearing protective cover for load-bearing protective cover and two, and two groups of snap fit connecting portion Central Symmetries, two protective cover bracing frames are symmetricly set on catch pit port inwall, the upper surface of described protective cover bracing frame is load-bearing protective cover supporting surface, in the middle of described protective cover bracing frame includes, linkage section is outward extending in order to be connected the segmental arc of catch pit port inwall with the two ends from middle linkage section, between described two segmental arcs and middle linkage section, define a notch part, the medial surface of one of them described segmental arc is provided with the snap fit connecting portion of being convenient to load-bearing protective cover and stretches into and rotate with load-bearing protective cover after described notch part and buckle into connection bayonet socket therein, on the joint face being connected with catch pit port inwall of at least one described segmental arc, offer and be convenient to bolted oval hole.
In the utility model, on the joint face being connected with catch pit port inwall of another described segmental arc, offer and be convenient to bolted circular hole.
In the utility model, between described protective cover bracing frame and catch pit port inwall, be connected by expandable nail.Further, described expandable nail is the plastic expansion nail that inside is embedded with metallic framework, and one end of expandable nail is taper pawl structure, is connected with catch pit port inwall, and the other end of expandable nail is countersunk head structure, is connected with protective cover bracing frame.
In the utility model, on described load-bearing protective cover, be provided with weep hole.Further, described weep hole defines and forms by organizing parallel grille strip more and being arranged on continuity diagonal bar between grille strip.
In the utility model, the upper surface of described load-bearing protective cover is provided with handle ring.
In the utility model, on described protective cover bracing frame, be provided with reinforcement brace rod.
When the utility model is opened in the situation that inspection well cover is stolen or because of emergent draining, can effectively prevent that pedestrian or object from crashing in inspection shaft, avoid causing loss of personal property.
The utility model adopts two protective cover bracing frames, takies catch pit port space less, is ensureing, under the long-pending prerequisite of effective faying surface, to have reduced the obstruction to the staff that goes into the well.
Oval hole is set on the segmental arc of protective cover bracing frame of the present utility model, convenient, easy to control when punching is installed.
The utility model is simple in structure, cost is low.
Feature of the present utility model can be consulted the detailed description of the graphic and following better embodiment of this case and be obtained and be well understood to.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model inspection shaft anti-falling structure.
Fig. 2 is the schematic diagram of protective cover bracing frame.
Detailed description of the invention
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, further set forth the utility model below in conjunction with specific embodiment.
Referring to Fig. 1,2, inspection shaft anti-falling structure, comprises that load-bearing protective cover 100 and two are in order to support the protective cover bracing frame 200 of load-bearing protective cover.Load-bearing protective cover 100 and protective cover bracing frame 200 all adopt the reinforced plastics that has increased glass fiber, and its maximum feature is that hot strength is high, and shock resistance is good.Tensile strength is >100MPa under ISO527-1 standard, simply supported beam unnotched impact strength is >25Mpa under ISO 179-1 mark, its corrosion resistance is also suitable excellence, can be in moist, muddy atmosphere corrosion-resistant, resistance to oxidation etc. for a long time.
Load-bearing protective cover 100 is for preventing that people or object from crashing in inspection shaft, and the body shape of load-bearing protective cover 100 is circular, in the present embodiment, load-bearing protective cover 100 comprise two straight flanges 140, after last installation, and form gap between catch pit port inwall.On load-bearing protective cover, be provided with weep hole 110, in the present embodiment, weep hole 110 defines and forms by organizing parallel grille strip 120 more and being arranged on continuity diagonal bar 130 between grille strip.The upper surface of load-bearing protective cover is provided with handle ring 150, is convenient to rotate load-bearing protective cover or upwards lifts load-bearing protective cover.The lower surface arranged outside of load-bearing protective cover has two groups of snap fit connecting portions 160, and two groups of snap fit connecting portion Central Symmetries.
When installation, two protective cover bracing frames 200 are symmetricly set on catch pit port inwall.The upper surface of protective cover bracing frame is load-bearing protective cover supporting surface 210.
In the middle of protective cover bracing frame includes, linkage section 220 is outward extending in order to be connected the segmental arc (230,240) of catch pit port inwall with the two ends from middle linkage section, between two segmental arcs (230,240) and middle linkage section 220, defines a notch part 250.And the medial surface of one of them segmental arc 230 is provided with the snap fit connecting portion of being convenient to load-bearing protective cover and stretches into and rotate with load-bearing protective cover after described notch part and buckle into connection bayonet socket 231 therein.On the joint face being connected with catch pit port inwall of one of them segmental arc 240, offer and be convenient to bolted oval hole 241.On the joint face being connected with catch pit port inwall of another segmental arc 230, offer and be convenient to bolted circular hole 232.On protective cover bracing frame, be provided with reinforcement brace rod.
Between protective cover bracing frame and catch pit port inwall, be connected by expandable nail.In the present embodiment, expandable nail is the plastic expansion nail that inside is embedded with metallic framework, and one end of expandable nail is taper pawl structure, is connected with catch pit port inwall, squeezes into catch pit port inwall, and strike tighter and tighter in case anti-avulsion falls by knocking.The other end of expandable nail is countersunk head structure, knocks in the counter sink of protective cover bracing frame, in order to avoid affect regular maintenance.Three equidistant circumference of protective cover bracing frame 200 are fixedly connected on catch pit port inwall.
Answer >=200kg of the static bearing capacity of the utility model, answer >=100kg of shock-resistant bearing capacity.
The utility model mounting or dismounting are convenient, can meet the bimonthly maintenance test of inspection shaft device completely, and operation is more light when increasing work efficiency.In the Inspection and maintenance of 2 times monthly, dismounting simple operations is easily gone.Operating personnel's angle that do not need to bend is greater than 45 °, just can carry out safely dismounting load-bearing protective cover.
Install: three protective cover bracing frames are fixed on catch pit port inwall with 6 expandable nails, and are positioned in same level, then load-bearing protective cover is put, and rotation is to clamping.When catch pit port is of a size of 640mm, being fitted to each other place's width minimum, is 20mm, can meet impact force requirement.
The utility model suggestion checks and changes once for 5 years.Annual inspection later in 5 years once, is changed in time.In routine maintenance checking process, cause whole device to lose original protective action as found some special circumstances, should give replacing.
The utility model, compared with existing Antifalling down net for manhole, has the following advantages:
1, the life-span is long.Antifalling down net for manhole general application life is 2-3, and the utility model can use at least 5 years, generally can use 8-10.
2, safety factor, mainly considers pedestrian, takes into account vehicle.After the utility model installation, distance well head distance is 10cm, due to its good rigidly, after inspection well cover is opened, even if vehicle also can play cushioning effect after pressing, prevents that automotive hub from damaging, and at utmost protects public's security of the lives and property.Antifalling down net for manhole surrounding gap is larger, and pedestrian steps down because of carelessness rear appearance scaring and produces secondary injury.
3, economic factor.About 120 yuan of life cycle use cost of the every cover of Antifalling down net for manhole, 10 years use cost 260-300 units.And about 150 yuan of life cycle use cost of the every cover of the utility model, 10 years use cost 260-300 units.Calculate from maintenance cost and efficiency, the utility model has unrivaled advantage.
4, regular maintenance, the every 2-3 of Antifalling down net for manhole need change once, and maintenance frequency is high.And install and remove cumbersomely, need workman closely to operate, potential safety hazard increases.The utility model did not need to carry out certain maintenance within 5 years, and had special tool to carry out remote-controlled operation, and worker safety is secure, and maintenance efficiency promotes greatly.
5, environmental protection, Antifalling down net for manhole must be fixed at least 8 metal trip bolts, and these screws need to have higher requirement for anticorrosion, and Treatment of Metal Surface is brought comparatively serious ambient influnence.
More than show and described general principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and manual, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (8)
1. inspection shaft anti-falling structure, is characterized in that, comprises that the lower surface arranged outside of described load-bearing protective cover has two groups of snap fit connecting portions in order to support the protective cover bracing frame of load-bearing protective cover for load-bearing protective cover and two, and two groups of snap fit connecting portion Central Symmetries, two protective cover bracing frames are symmetricly set on catch pit port inwall, the upper surface of described protective cover bracing frame is load-bearing protective cover supporting surface, in the middle of described protective cover bracing frame includes, linkage section is outward extending in order to be connected the segmental arc of catch pit port inwall with the two ends from middle linkage section, between described two segmental arcs and middle linkage section, define a notch part, the medial surface of one of them described segmental arc is provided with the snap fit connecting portion of being convenient to load-bearing protective cover and stretches into and rotate with load-bearing protective cover after described notch part and buckle into connection bayonet socket therein, on the joint face being connected with catch pit port inwall of at least one described segmental arc, offer and be convenient to bolted oval hole.
2. inspection shaft anti-falling structure according to claim 1, is characterized in that, on the joint face being connected of another described segmental arc, offers and is convenient to bolted circular hole with catch pit port inwall.
3. inspection shaft anti-falling structure according to claim 1, is characterized in that, between described protective cover bracing frame and catch pit port inwall, is connected by expandable nail.
4. inspection shaft anti-falling structure according to claim 3, is characterized in that, described expandable nail is the plastic expansion nail that inside is embedded with metallic framework, one end of expandable nail is taper pawl structure, be connected with catch pit port inwall, the other end of expandable nail is countersunk head structure, is connected with protective cover bracing frame.
5. inspection shaft anti-falling structure according to claim 1, is characterized in that, on described load-bearing protective cover, is provided with weep hole.
6. inspection shaft anti-falling structure according to claim 5, is characterized in that, described weep hole defines and forms by organizing parallel grille strip more and being arranged on continuity diagonal bar between grille strip.
7. inspection shaft anti-falling structure according to claim 1, is characterized in that, the upper surface of described load-bearing protective cover is provided with handle ring.
8. inspection shaft anti-falling structure according to claim 1, is characterized in that, on described protective cover bracing frame, is provided with reinforcement brace rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139704.2U CN203795469U (en) | 2014-03-26 | 2014-03-26 | Anti-drop structure for inspection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139704.2U CN203795469U (en) | 2014-03-26 | 2014-03-26 | Anti-drop structure for inspection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203795469U true CN203795469U (en) | 2014-08-27 |
Family
ID=51377698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420139704.2U Expired - Lifetime CN203795469U (en) | 2014-03-26 | 2014-03-26 | Anti-drop structure for inspection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203795469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442635A (en) * | 2015-11-13 | 2016-03-30 | 林刚 | Novel assembled multi-functional inspection well lid |
| CN106948376A (en) * | 2017-03-31 | 2017-07-14 | 上海申排成套装备产业有限公司 | Inspection shaft falling proof device |
-
2014
- 2014-03-26 CN CN201420139704.2U patent/CN203795469U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442635A (en) * | 2015-11-13 | 2016-03-30 | 林刚 | Novel assembled multi-functional inspection well lid |
| CN106948376A (en) * | 2017-03-31 | 2017-07-14 | 上海申排成套装备产业有限公司 | Inspection shaft falling proof device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |