CN203320561U - Anti-falling device for inspection well - Google Patents

Anti-falling device for inspection well Download PDF

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Publication number
CN203320561U
CN203320561U CN201320375179XU CN201320375179U CN203320561U CN 203320561 U CN203320561 U CN 203320561U CN 201320375179X U CN201320375179X U CN 201320375179XU CN 201320375179 U CN201320375179 U CN 201320375179U CN 203320561 U CN203320561 U CN 203320561U
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CN
China
Prior art keywords
protective cover
bracing frame
inspection shaft
load
drop device
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 - Fee Related
Application number
CN201320375179XU
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Chinese (zh)
Inventor
李国锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI TIANYUAN GROUP SHENGDE PLASTICS CO Ltd
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SHANGHAI TIANYUAN GROUP SHENGDE PLASTICS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI TIANYUAN GROUP SHENGDE PLASTICS CO Ltd filed Critical SHANGHAI TIANYUAN GROUP SHENGDE PLASTICS CO Ltd
Priority to CN201320375179XU priority Critical patent/CN203320561U/en
Application granted granted Critical
Publication of CN203320561U publication Critical patent/CN203320561U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an anti-falling device for an inspection well. The anti-falling device comprises a circular bearing protective cover and a plurality of protective cover support frames arranged at the periphery of the bearing protective cover and used for supporting the bearing protective cover, wherein the plurality of protective cover support frames are arranged into a circle with equal intervals and fixedly connected to the inner wall of an inspection well opening; an accommodating groove with a support plane is formed in the inner side of each protective cover support frame; convex edge parts corresponding to the support planes and used for being lapped on the support planes are arranged on the circumferential side part of the bearing protective cover; and notch parts corresponding to the accommodating grooves so as to separate the bearing protective cover from the protective cover support frames are further arranged on the circumferential side part of the bearing protective cover. In the case that an inspection well lid is stolen or opened for emergency water drainage, the anti-falling device disclosed by the utility model can be used for effectively preventing pedestrians or articles from falling into the inspection well, so as to avoid the losses of people and property.

Description

The inspection shaft anti-drop device
Technical field
The utility model relates to a kind of inspection shaft anti-drop device, 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, the power cable manhole, also be 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, because material has to recycle, is worth, and often stolen, loss situation is serious.In addition, when running into continuous heavy rain, cause urban road when immersion, people's custom is opened inspection well cover in order 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 the well seat, has the soft string bag be connected with the 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; While when the urban road immersion, needing emergent draining, even if open well lid, also can prevent that pedestrian or larger object from crashing in well.But, due to the restriction that is subject to the material of the soft string bag own, in the situation that long-time, using, there is the phenomenon of being polluted by Sewage Environment in the soft string bag.
The utility model content
For the problems referred to above, the utility model provides a kind of inspection shaft anti-drop device, with pedestrian or object in the solution prior art, crashes into the problem in inspection shaft.
To achieve these goals, the technical solution of the utility model 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 inboard of protective cover bracing frame is provided with the holding tank with a supporting plane, 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 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.
In the utility model, 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 utility model, the middle part of described protective cover bracing frame is provided with bolt connecting hole, between protective cover bracing frame and catch pit port inwall, by expandable nail, is connected.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, with the catch pit port inwall, is connected, and the other end of expandable nail is the countersunk head structure, with the protective cover bracing frame, is connected.
In the utility model, the bottom of described protective cover bracing frame is provided with the reinforcement brace rod.
In the utility model, an end of described holding tank is openend, and the other end of holding tank is provided with position block.
In the utility model, on described load-bearing protective cover, be provided with weep hole.Further, described weep hole is that arrange and the trapezoidal hole that be the outside divergence expression structure of ring by ring of circular in configuration.Described weep hole is square hole.Described weep hole is diamond hole.Described weep hole is tri-angle-holed.
The utility model, in the situation that inspection well cover is stolen or while opening in response to anxious draining, can effectively prevent that pedestrian or object from crashing in inspection shaft, avoids causing loss of personal property.
The utility model is simple in structure, cost is low.
Characteristics 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.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model inspection shaft with anti-drop device.
The schematic diagram that Fig. 2 is the load-bearing protective cover.
The schematic diagram that Fig. 3 is the protective cover bracing frame.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, further set forth the utility model below in conjunction with specific embodiment.
Referring to Fig. 1,2 and 3, the inspection shaft anti-drop device, comprise that load-bearing protective cover 100 and three protective cover bracing frame 200(can be also 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 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, 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 for circular in configuration arrange and trapezoidal hole that be the outside divergence expression structure of ring by ring.Certainly, weep hole can be also square hole, diamond hole or tri-angle-holed etc.The peripheral portion of load-bearing protective cover is provided with convex edge 120 and notch part 130.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, be convenient to pinpoint the problems in time 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, between protective cover bracing frame and catch pit port inwall, by expandable nail, is connected.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, with the catch pit port inwall, is connected, and by knocking, squeezes into the catch pit port inwall, 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 equidistant circumference of protective cover bracing frame 200 are fixedly connected on the catch pit port inwall.The inboard of protective cover bracing frame is provided with the holding tank 220 with a supporting plane 221, and an end of holding tank is openend, and the other end of holding tank is provided with position block 240.Supporting plane 221 takes into full account the well head tolerance, meets and to cause the instructions for use under inspection shaft bore different situations because of construction error.The convex edge 120 of load-bearing protective cover is corresponding with the supporting plane 221 of holding tank, in order to be overlapped on this supporting plane; The notch part 130 of load-bearing protective cover is corresponding with holding tank, so that realize load-bearing protective cover and protective cover bracing frame separately.
The bottom of protective cover bracing frame is provided with triangle and strengthens brace rod 230.
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 fully, and operation is more light when increasing work efficiency.In the Inspection and maintenance of 2 times per month, the 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: with 6 expandable nails, three protective cover bracing frames are fixed on the catch pit port inwall, and are positioned on 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, being fitted to each other place's width minimum, is 20mm, can meet the impact force requirement.
Make special-purpose regular maintenance dismantling device, this instrument is comprised of light metal material, and a 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 utility model suggestion checks and changes once in 5 years.After 5 years, annual the inspection once, changed in time.In the routine maintenance checking process, as found some special circumstances, cause whole device to lose original protective action, should give replacing.
The utility model is 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 be used at least 5 years, generally can use 8-10.
2, safety factor, mainly consider the pedestrian, takes into account vehicle.Be 10cm apart from the well head distance after the utility model installation, due to its good rigidly, after inspection well cover is opened, even vehicle also can play cushioning effect after pressing, prevent 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 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 utility model, 10 years use cost 260-300 units.From maintenance cost and efficiency, calculate, 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 the 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.
Above demonstration and described basic 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 break away 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 (10)

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 inboard of protective cover bracing frame is provided with the holding tank with a supporting plane, 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 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.
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 the catch pit port inwall, and described load-bearing protective cover is corresponding with the 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, between protective cover bracing frame and catch pit port inwall, by expandable nail, is connected.
4. inspection shaft anti-drop device according to claim 3, is characterized in that, described expandable nail is the inner plastic expansion nail that is embedded with metallic framework, one end of expandable nail is taper pawl structure, with the catch pit port inwall, be connected, the other end of expandable nail is the countersunk head structure, with the protective cover bracing frame, is connected.
5. 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.
6. inspection shaft anti-drop device according to claim 1, is characterized in that, an end of described holding tank is openend, and the other end of holding tank is provided with position block.
7. inspection shaft anti-drop device according to claim 1, is characterized in that, on described load-bearing protective cover, is provided with weep hole.
8. inspection shaft anti-drop device according to claim 7, is characterized in that, described weep hole is that arrange and the trapezoidal hole that be the outside divergence expression structure of ring by ring of circular in configuration.
9. inspection shaft anti-drop device according to claim 7, is characterized in that, described weep hole is square hole.
10. inspection shaft anti-drop device according to claim 7, is characterized in that, described weep hole is diamond hole.
CN201320375179XU 2013-06-27 2013-06-27 Anti-falling device for inspection well Expired - Fee Related CN203320561U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320375179XU CN203320561U (en) 2013-06-27 2013-06-27 Anti-falling device for inspection well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320375179XU CN203320561U (en) 2013-06-27 2013-06-27 Anti-falling device for inspection well

Publications (1)

Publication Number Publication Date
CN203320561U true CN203320561U (en) 2013-12-04

Family

ID=49659927

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320375179XU Expired - Fee Related CN203320561U (en) 2013-06-27 2013-06-27 Anti-falling device for inspection well

Country Status (1)

Country Link
CN (1) CN203320561U (en)

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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: 20131204

Termination date: 20190627

CF01 Termination of patent right due to non-payment of annual fee