CN103352480B - Anti-falling device for inspection well - Google Patents
Anti-falling device for inspection well Download PDFInfo
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- CN103352480B CN103352480B CN201310262252.7A CN201310262252A CN103352480B CN 103352480 B CN103352480 B CN 103352480B CN 201310262252 A CN201310262252 A CN 201310262252A CN 103352480 B CN103352480 B CN 103352480B
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- protective cover
- load
- bracing frame
- inspection shaft
- bearing
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Abstract
The invention discloses an anti-falling device for an inspection well. The anti-falling device comprises a circular bearing protection cover and a plurality of protection cover supporting frames arranged on the periphery of the bearing protection cover, wherein the protection cover supporting frames are fixedly connected to the inner wall of an inspection well mouth circumferentially at equal intervals; each protection cover supporting frame comprises a supporting plane and a clamping groove located above the supporting plane and used for preventing the bearing protection cover from moving up and down; a convex edge part corresponding to the supporting plane and a notch part corresponding to an accommodating groove are arranged at the circumferential edge part of the bearing protection cover; a plurality of positioning grooves are formed at intervals in the upper surface of the convex edge part; and derotation and falling prevention clamping hooks corresponding to the positioning grooves are arranged on the protection cover supporting frames. According to the anti-falling device, under the condition that the inspection well cover is stolen or opened due to emergency water discharging, a pedestrian or an object can be effectively prevented from falling into the inspection well, and personal property loss is avoided.
Description
Technical field
The present invention relates to a kind of inspection shaft anti-drop device, prevent pedestrian or object from crashing into well from catch pit port.
Background technology
Inspection shaft be used in drainage pipe turning, branch, the place such as to fall so that check, the well of dredging, formal name used at school is in manhole.In like manner, be embedded in the telecommunication cable manhole of underground, 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, and be worth because material has to recycle, often stolen, loss situation is serious.In addition, when running into continuous heavy rain and causing urban road to soak, people's custom opens inspection well cover to accelerate draining, loses the import of inspection well cover, the pedestrian on ground or object occurs often and crashes into 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 be connected with well seat, and this structure energy advantage is: when inspection well cover is lost, and it can prevent pedestrian or object from crashing in well effectively; When needing emergent draining when urban road immersion, also can prevent 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, when long-time use, there is the phenomenon polluted by Sewage Environment in the soft string bag.
Summary of the invention
For the problems referred to above, the invention provides a kind of inspection shaft anti-drop device, crash into the problem in inspection shaft to solve pedestrian or object in prior art.
To achieve these goals, technical scheme of the present invention is as follows:
Inspection shaft anti-drop device, it is characterized in that, comprise circular load-bearing protective cover and some load-bearing protective cover peripheries that is arranged in order to support the protective cover bracing frame of load-bearing protective cover, the equidistant circumference of some described protective cover bracing frames is fixedly connected on catch pit port inwall, protective cover bracing frame comprises a supporting plane and is positioned at the draw-in groove in order to prevent load-bearing protective cover from moving up and down above supporting plane, described draw-in groove comprises a blind end, and this blind end place is provided with the intilted conical surface in order to hold out against load-bearing protective cover cylindrical; The peripheral portion of described load-bearing protective cover is provided with corresponding with supporting plane in order to be overlapped on the convex edge on supporting plane, the peripheral portion of load-bearing protective cover is also provided with corresponding with holding tank so that the notch part that load-bearing protective cover and protective cover bracing frame separated, and the upper surface of described convex edge is arranged at intervals with some groups of locating slots; Described protective cover bracing frame is arranged the anti-derotation corresponding with locating slot to come off snap fit.
In a preferred embodiment of the invention, described draw-in groove is arranged on the tip position of supporting plane.Further, described anti-derotation comes off snap fit from the outside horizontal expansion of upper trough rim of described draw-in groove out.
In a preferred embodiment of the invention, the upper end of described draw-in groove is provided with bilge water resisting and pours in down a chimney boss.
In the present invention, described protective cover bracing frame is three, and circumference is fixedly connected on catch pit port inwall, and described load-bearing protective cover is corresponding with protective cover bracing frame.
In the present invention, the middle part of described protective cover bracing frame is provided with bolt connecting hole, is connected between protective cover bracing frame with catch pit port inwall 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 present invention, the bottom of described protective cover bracing frame is provided with reinforcement brace rod.
In the present invention, described load-bearing protective cover is provided with weep hole.Further, described weep hole is the trapezoidal hole also in the outside divergence expression structure of ring by ring of circular in configuration arrangement.Described weep hole is square hole.Or described weep hole is diamond hole.Or described weep hole is tri-angle-holed.
In the present invention, the outer wall of protective cover bracing frame is provided with seal.
The present invention, when inspection well cover is stolen or when opening because of emergent draining, effectively can prevents pedestrian or object from crashing in inspection shaft, avoid causing loss of personal property.
Structure of the present invention is simple, cost is low.
The detailed description and obtaining that feature of the present invention can consult the graphic and following better embodiment of this case is well understood to.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of inspection shaft anti-drop device of the present invention.
Fig. 2 is the schematic diagram of protective cover bracing frame.
Fig. 3 is the partial schematic diagram of load-bearing protective cover.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with specific embodiment.
See Fig. 1,2 and 3, inspection shaft anti-drop device, comprises load-bearing protective cover 100 and three protective cover bracing frames 200 (also can be that other are multiple).Load-bearing protective cover 100 and protective cover bracing frame 200 all adopt the reinforced plastics adding 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 marks, its corrosion resistance is also suitable excellence, can in moist, muddy atmosphere corrosion-resistant, resistance to oxidation etc. for a long time.
Load-bearing protective cover 100 is used to prevent people or object from crashing in inspection shaft, the outer contour shape of load-bearing protective cover 100 is circular, load-bearing protective cover is provided with weep hole 110, in the present embodiment, weep hole 110 for circular in configuration arrange and in the trapezoidal hole of the outside divergence expression structure of ring by ring.Certainly, weep hole also can be square hole, diamond hole or tri-angle-holed etc.The peripheral portion of load-bearing protective cover be provided with corresponding with supporting plane in order to be overlapped on convex edge 120 on supporting plane and with holding tank corresponding so that notch part 130 that load-bearing protective cover and protective cover bracing frame are separated.The upper surface of convex edge 120 is arranged at intervals with three groups of locating slots 121 (can be two groups or other many groups); Information identifier region is left in the center of load-bearing protective cover 100, and much information such as statement region, maintenance telephone number etc., is convenient to Timeliness coverage problem like this and manages.
Protective cover bracing frame 200 is arranged on load-bearing protective cover periphery in order to support load-bearing protective cover 100.The outer wall of protective cover bracing frame is provided with seal.The middle part of protective cover bracing frame 200 is provided with bolt connecting hole 210, is connected between protective cover bracing frame with catch pit port inwall 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.
The draw-in groove 230 in order to prevent load-bearing protective cover from moving up and down that protective cover bracing frame 200 comprises a supporting plane 220 and is positioned at above supporting plane, draw-in groove 230 only has a bit of, is arranged on the tip position of supporting plane.Draw-in groove comprises a blind end 231, and this blind end place is provided with the intilted conical surface 232, in order to hold out against load-bearing protective cover cylindrical; One anti-derotation comes off snap fit 240 from the outside horizontal expansion of upper trough rim of described draw-in groove out.The anti-derotation snap fit 240 that comes off is corresponding with the locating slot 121 of load-bearing protective cover.
The upper end of draw-in groove is provided with bilge water resisting and pours in down a chimney boss 250, can effectively prevent because amount of rainfall in flood season is excessive, the generation of the phenomenon causing sewage to be ejected by inspection well cover when well head sprays.
The bottom of protective cover bracing frame is provided with triangle and strengthens brace rod 260.
The static bearing capacity of the present invention answers >=200kg, and shock-resistant bearing capacity answers >=100kg.
The present invention installs and removes conveniently, can meet the bimonthly maintenance test of inspection well device completely, and while increasing work efficiency, operation is more light.In the monthly Inspection and maintenance of 2 times, dismounting simple operations is easy.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: with 6 expandable nails, three protective cover bracing frames are fixed on catch pit port inwall, and are positioned in same level, then load-bearing protective cover is put, and rotate to clamping.When catch pit port is of a size of 640mm, is fitted to each other place's width minimum, is 20mm, impact force requirement can be met.
Make special regular maintenance dismantling device, this instrument is made up of light metal material, and a curved metal claw of Flat belt is designed in termination, is used for mobile plastic safety lid, and side arranges a hook in addition, is used for tension or draw loose safety head.
The present invention advises checking for 5 years and changes once.Annual inspection later in 5 years once, is changed in time.In routine maintenance checking process, causing whole device to lose original protective action as found some special circumstances, should give replacing.
The present invention, 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 present invention can use at least 5 years, generally can use 8-10.
2, safety factor, mainly considers pedestrian, takes into account vehicle.After installation of the present invention, 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 automotive hub from damaging, and at utmost protects public's security of the lives and property.Antifalling down net for manhole surrounding gap is comparatively large, and pedestrian steps down rear appearance scaring because of carelessness and produces secondary injury.
3, economic factor.Antifalling down net for manhole often overlaps about 120 yuan of a life cycle use cost, 10 years use cost 260-300 units.And the present invention often overlaps about 150 yuan of a life cycle use cost, 10 years use cost 260-300 units.Calculate from maintenance cost and efficiency, the present invention 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 cumbersome, need workman closely to operate, potential safety hazard increases.The present invention 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 fix at least 8 metal trip bolts, and these screws need higher requirement for anticorrosion, and Treatment of Metal Surface brings comparatively serious ambient influnence.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and manual; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (10)
1. inspection shaft anti-drop device, it is characterized in that, comprise circular load-bearing protective cover and some load-bearing protective cover peripheries that is arranged in order to support the protective cover bracing frame of load-bearing protective cover, the equidistant circumference of some described protective cover bracing frames is fixedly connected on catch pit port inwall, protective cover bracing frame comprises a supporting plane and is positioned at the draw-in groove in order to prevent load-bearing protective cover from moving up and down above supporting plane, described draw-in groove is arranged on the tip position of supporting plane, described draw-in groove comprises a blind end, the upper end of described draw-in groove is provided with bilge water resisting and pours in down a chimney boss, this blind end place is provided with the intilted conical surface in order to hold out against load-bearing protective cover cylindrical, the peripheral portion of described load-bearing protective cover is provided with corresponding with supporting plane in order to be overlapped on the convex edge on supporting plane, the peripheral portion of load-bearing protective cover is also provided with corresponding with holding tank so that the notch part that load-bearing protective cover and protective cover bracing frame separated, and the upper surface of described convex edge is arranged at intervals with some groups of locating slots, described protective cover bracing frame is arranged the anti-derotation corresponding with locating slot to come off snap fit, described anti-derotation comes off snap fit from the outside horizontal expansion of upper trough rim of described draw-in groove out.
2. inspection shaft anti-drop device according to claim 1, is characterized in that, described protective cover bracing frame is three, and circumference is fixedly connected on catch pit port inwall, and described load-bearing protective cover is corresponding with protective cover bracing frame.
3. inspection shaft anti-drop device according to claim 1, is characterized in that, the middle part of described protective cover bracing frame is provided with bolt connecting hole, is connected between protective cover bracing frame with catch pit port inwall by expandable nail.
4. inspection shaft anti-drop device according to claim 1, is characterized in that, the bottom of described protective cover bracing frame is provided with reinforcement brace rod.
5. inspection shaft anti-drop device according to claim 1, is characterized in that, described load-bearing protective cover is provided with weep hole.
6. inspection shaft anti-drop device according to claim 5, is characterized in that, described weep hole is the trapezoidal hole also in the outside divergence expression structure of ring by ring of circular in configuration arrangement.
7. inspection shaft anti-drop device according to claim 5, is characterized in that, described weep hole is square hole.
8. inspection shaft anti-drop device according to claim 5, is characterized in that, described weep hole is diamond hole.
9. inspection shaft anti-drop device according to claim 5, is characterized in that, described weep hole is tri-angle-holed.
10. inspection shaft anti-drop device according to claim 1, is characterized in that, the outer wall of protective cover bracing frame is provided with seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262252.7A CN103352480B (en) | 2013-06-27 | 2013-06-27 | Anti-falling device for inspection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262252.7A CN103352480B (en) | 2013-06-27 | 2013-06-27 | Anti-falling device for inspection well |
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| Publication Number | Publication Date |
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| CN103352480A CN103352480A (en) | 2013-10-16 |
| CN103352480B true CN103352480B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310262252.7A Active CN103352480B (en) | 2013-06-27 | 2013-06-27 | Anti-falling device for inspection well |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981903A (en) * | 2014-05-29 | 2014-08-13 | 苏兴鑫 | Washing-off-proof safety well lid |
| CN106948376B (en) * | 2017-03-31 | 2020-03-20 | 上海申排成套装备产业有限公司 | Anti-falling device for inspection well |
| CN108867706A (en) * | 2018-09-20 | 2018-11-23 | 贵州大学 | A kind of cesspool cover bracing means |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555694A (en) * | 2009-05-21 | 2009-10-14 | 梁林华 | Multi-preventing well cover |
| CN201433404Y (en) * | 2009-06-01 | 2010-03-31 | 绍兴县排水有限公司 | Anti-falling device of screwing-in type inspection well lid |
| CN201981634U (en) * | 2011-03-08 | 2011-09-21 | 厦门水务中环污水处理有限公司 | Safety anti-falling device for drainage pipeline inspection well |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012097522A (en) * | 2010-11-05 | 2012-05-24 | Tomio Kishida | Fall prevention device for manhole |
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2013
- 2013-06-27 CN CN201310262252.7A patent/CN103352480B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555694A (en) * | 2009-05-21 | 2009-10-14 | 梁林华 | Multi-preventing well cover |
| CN201433404Y (en) * | 2009-06-01 | 2010-03-31 | 绍兴县排水有限公司 | Anti-falling device of screwing-in type inspection well lid |
| CN201981634U (en) * | 2011-03-08 | 2011-09-21 | 厦门水务中环污水处理有限公司 | Safety anti-falling device for drainage pipeline inspection well |
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| CN103352480A (en) | 2013-10-16 |
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