CN103352480A - Anti-falling device for inspection well - Google Patents
Anti-falling device for inspection well Download PDFInfo
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- CN103352480A CN103352480A CN2013102622527A CN201310262252A CN103352480A CN 103352480 A CN103352480 A CN 103352480A CN 2013102622527 A CN2013102622527 A CN 2013102622527A CN 201310262252 A CN201310262252 A CN 201310262252A CN 103352480 A CN103352480 A CN 103352480A
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- protective cover
- inspection shaft
- load
- bracing frame
- drop device
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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 that pedestrian or object from crashing into the 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 usefulness, formal name used at school is in manhole.In like manner, be embedded in underground telecommunication cable manhole, the power cable manhole also is inspection shaft.
The well head of inspection shaft all is 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 in order to accelerate draining, loses the import of inspection well cover, the pedestrian on ground or object occurs often crash into accident in the inspection shaft, causes loss of personal property.
Chinese patent mandate publication number CN 2718072Y discloses a kind of Antifalling down net for manhole, comprises the well seat, has the soft string bag that is connected with the well seat, and this structure can advantage be: in the situation that inspection well cover is lost, it can prevent effectively that pedestrian or object from crashing in the well; When needing emergent draining when the urban road immersion, can prevent that also pedestrian or larger object from crashing in the well even if open well lid.But owing to being subject to the restriction of the material of the soft string bag own, in the situation that long-time the use, there is the phenomenon of being 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 problem in the inspection shaft to solve pedestrian in the prior art or object.
To achieve these goals, technical scheme of the present invention is as follows:
The inspection shaft anti-drop device, it is characterized in that, comprise that circular load-bearing protective cover and some load-bearing protective cover peripheries that is arranged on are 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 the catch pit port inwall, the protective cover bracing frame comprises a supporting plane and is positioned at the draw-in groove in order to prevent that the load-bearing protective cover from moving up and down of supporting plane top, described draw-in groove comprises a blind end, is provided with intilted in order to hold out against the conical surface of load-bearing protective cover cylindrical at this blind end place; 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 the supporting plane, the peripheral portion of load-bearing protective cover also is provided with corresponding with holding tank so that the notch part that load-bearing protective cover and protective cover bracing frame are separated, and the upper surface of described convex edge is arranged at intervals with some groups of locating slots; The anti-derotation corresponding with the locating slot snap fit that comes off is set on the described protective cover bracing frame.
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 the catch pit port inwall, and described load-bearing protective cover is corresponding with the 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 by expandable nail between protective cover bracing frame and the catch pit port inwall.Further, described expandable nail is the inner plastic expansion nail that is embedded with metallic framework, and an end of expandable nail is taper pawl structure, is connected with the catch pit port inwall, and the other end of expandable nail is the countersunk head structure, is connected with the protective cover bracing frame.
In the present invention, the bottom of described protective cover bracing frame is provided with the reinforcement brace rod.
In the present invention, be provided with weep hole on the described load-bearing protective cover.Further, described weep hole is circular in configuration trapezoidal hole that arrange and that be the outside divergence expression structure of ring by ring.Described weep hole is square hole.Perhaps described weep hole is diamond hole.Perhaps described weep hole is tri-angle-holed.
In the present invention, be provided with seal on the outer wall of protective cover bracing frame.
The present invention avoids causing loss of personal property in the situation that inspection well cover is stolen or when opening in response to anxious draining, can prevent effectively that pedestrian or object from crashing in the inspection shaft.
The present invention is simple in structure, cost is low.
Characteristics of the present invention can be consulted the detailed description of the graphic and following better embodiment of this case and be obtained to be well understood to.
Description of drawings
Fig. 1 is the schematic diagram that inspection shaft of the present invention is used anti-drop device.
Fig. 2 is the partial schematic diagram of load-bearing protective cover.
Fig. 3 is the schematic diagram of protective cover bracing frame.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, further set forth the present invention below in conjunction with specific embodiment.
Referring to Fig. 1,2 and 3, the inspection shaft anti-drop device comprises that load-bearing protective cover 100 and three protective cover bracing frame 200(also can be that other are a plurality of).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 under the ISO527-1 standard〉100MPa, the simply supported beam unnotched impact strength is under ISO 179-1 mark〉25Mpa, its corrosion resistance also is suitable excellence, can be in moist, muddy atmosphere long-time corrosion-resistant, resistance to oxidation etc.
Load-bearing protective cover 100 is to prevent that people or object from crashing in the inspection shaft, the outer contour shape of load-bearing protective cover 100 is circular, be provided with weep hole 110 on the load-bearing protective cover, in the present embodiment, weep hole 110 is circular in configuration trapezoidal hole that arrange and that be 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 the supporting plane convex edge 120 and with holding tank corresponding so that the notch part 130 that load-bearing protective cover and protective cover bracing frame are separated.It can be two groups or other many groups that the upper surface of convex edge 120 is arranged at intervals with three groups of locating slot 121(); Information identifier region is left in the center of load-bearing protective cover 100, and the much informations such as statement zone, maintenance telephone number are convenient in time pinpoint the problems and manage like this.
Protective cover bracing frame 200 is arranged on load-bearing protective cover periphery in order to support load-bearing protective cover 100.Be provided with seal on the outer wall of protective cover bracing frame.The middle part of protective cover bracing frame 200 is provided with bolt connecting hole 210, is connected by expandable nail between protective cover bracing frame and the catch pit port inwall.In the present embodiment, expandable nail is the inner plastic expansion nail that is embedded with metallic framework, and an end of expandable nail is taper pawl structure, is connected with the catch pit port inwall, squeezes into the catch pit port inwall by knocking, and strikes tighter and tighter in case anti-avulsion falls.The other end of expandable nail is the countersunk head structure, knocks in the counter sink of protective cover bracing frame, in order to avoid affect regular maintenance.Three protective cover bracing frame 200 equidistant circumference are fixedly connected on the catch pit port inwall.
Protective cover bracing frame 200 comprises a supporting plane 220 and the draw-in groove 230 in order to prevent that the load-bearing protective cover from moving up and down that is positioned at the supporting plane top, and 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, is provided with the intilted conical surface 232 at this blind end place, 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.
Be provided with bilge water resisting in the upper end of draw-in groove and pour in down a chimney boss 250, can effectively prevent because of flood season amount of rainfall excessive, cause the generation of the phenomenon that when sewage sprays from well head inspection well cover is ejected.
The bottom of protective cover bracing frame is provided with triangle and strengthens brace rod 260.
The static bearing capacity of the present invention is answered 〉=200kg, and shock-resistant bearing capacity is answered 〉=100kg.
The present invention installs and removes conveniently, can satisfy the bimonthly maintenance test of inspection shaft device fully, and operation is more light when increasing work efficiency.In 2 times Inspection and maintenance per month, the dismounting simple operations is easily gone.Operating personnel do not need to bend angle 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 the catch pit port inwall, and are positioned on the same level, then the load-bearing protective cover is put, and rotation is to chucking.When catch pit port is of a size of 640mm, be fitted to each other place's width minimum, be 20mm, can satisfy the impact force requirement.
Make special-purpose regular maintenance dismantling device, this instrument is comprised of light metal material, and design curved metal claw of Flat belt in termination is used for mobile plastic safety lid, and an other side arranges a hook, is used for tension or draw loose safety head.
The present invention advises checking in 5 years and changes once.The annual inspection once in time changed after 5 years.In the routine maintenance checking process, cause whole device to lose original protective action as finding some special circumstances, should give replacing.
The present invention compares with existing Antifalling down net for manhole, has the following advantages:
1, the life-span is long.The Antifalling down net for manhole normal operation life-span is 2-3, and the present invention can use 5 years at least, can use 8-10 generally speaking.
2, safety factor is mainly considered the pedestrian, takes into account vehicle.Be 10cm apart from well head distance after the installation of the present invention, because its good rigidly after inspection well cover is opened, even vehicle also can play cushioning effect after pressing, prevents the automotive hub damage, at utmost protect public's security of the lives and property.The gap is larger around the Antifalling down net for manhole, and the 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 present invention, 10 years use cost 260-300 units.Calculate from maintenance cost and efficient, 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 cumbersomely, need the 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 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.
Above demonstration and described basic 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; what describe in above-described embodiment and the manual is principle of the present invention; 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 the claimed scope of the present invention.The protection domain that the present invention requires is defined by appending claims and equivalent thereof.
Claims (13)
1. inspection shaft anti-drop device, it is characterized in that, comprise that circular load-bearing protective cover and some load-bearing protective cover peripheries that is arranged on are 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 the catch pit port inwall, the protective cover bracing frame comprises a supporting plane and is positioned at the draw-in groove in order to prevent that the load-bearing protective cover from moving up and down of supporting plane top, described draw-in groove comprises a blind end, is provided with intilted in order to hold out against the conical surface of load-bearing protective cover cylindrical at this blind end place; 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 the supporting plane, the peripheral portion of load-bearing protective cover also is provided with corresponding with holding tank so that the notch part that load-bearing protective cover and protective cover bracing frame are separated, and the upper surface of described convex edge is arranged at intervals with some groups of locating slots; The anti-derotation corresponding with the locating slot snap fit that comes off is set on the described protective cover bracing frame.
2. inspection shaft anti-drop device according to claim 1 is characterized in that, described draw-in groove is arranged on the tip position of supporting plane.
3. inspection shaft anti-drop device according to claim 2 is characterized in that, described anti-derotation comes off snap fit from the outside horizontal expansion of upper trough rim of described draw-in groove out.
4. inspection shaft anti-drop device according to claim 1 is characterized in that, the upper end of described draw-in groove is provided with bilge water resisting and pours in down a chimney boss.
5. 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 the catch pit port inwall, and described load-bearing protective cover is corresponding with the protective cover bracing frame.
6. 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 by expandable nail between protective cover bracing frame and the catch pit port inwall.
7. inspection shaft anti-drop device according to claim 1 is characterized in that, the bottom of described protective cover bracing frame is provided with the reinforcement brace rod.
8. inspection shaft anti-drop device according to claim 1 is characterized in that, is provided with weep hole on the described load-bearing protective cover.
9. inspection shaft anti-drop device according to claim 1 is characterized in that, described weep hole is circular in configuration trapezoidal hole that arrange and that be the outside divergence expression structure of ring by ring.
10. inspection shaft anti-drop device according to claim 1 is characterized in that, described weep hole is square hole.
11. inspection shaft anti-drop device according to claim 1 is characterized in that, described weep hole is diamond hole.
12. inspection shaft anti-drop device according to claim 1 is characterized in that, described weep hole is tri-angle-holed.
13. inspection shaft anti-drop device according to claim 1 is characterized in that, is provided with seal on the outer wall of protective cover bracing frame.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103352480A true CN103352480A (en) | 2013-10-16 |
| CN103352480B CN103352480B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310262252.7A Active CN103352480B (en) | 2013-06-27 | 2013-06-27 | Anti-falling device for inspection well |
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Cited By (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 |
| 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 |
| CN108867706A (en) * | 2018-09-20 | 2018-11-23 | 贵州大学 | A kind of cesspool cover bracing means |
Citations (4)
| 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 | Screw-in type inspection well cover falling-proof device |
| 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 |
| JP2012097522A (en) * | 2010-11-05 | 2012-05-24 | Tomio Kishida | Fall prevention device for manhole |
-
2013
- 2013-06-27 CN CN201310262252.7A patent/CN103352480B/en active Active
Patent Citations (4)
| 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 | Screw-in type inspection well cover falling-proof device |
| JP2012097522A (en) * | 2010-11-05 | 2012-05-24 | Tomio Kishida | Fall prevention device for manhole |
| 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 |
Cited By (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 |
| 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 |
| CN108867706A (en) * | 2018-09-20 | 2018-11-23 | 贵州大学 | A kind of cesspool cover bracing means |
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| Publication number | Publication date |
|---|---|
| CN103352480B (en) | 2015-07-15 |
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