CN204098082U - Anti-drop device load-bearing protective cover - Google Patents
Anti-drop device load-bearing protective cover Download PDFInfo
- Publication number
- CN204098082U CN204098082U CN201420551346.6U CN201420551346U CN204098082U CN 204098082 U CN204098082 U CN 204098082U CN 201420551346 U CN201420551346 U CN 201420551346U CN 204098082 U CN204098082 U CN 204098082U
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- protective cover
- load
- bearing protective
- bearing
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Abstract
The utility model discloses a kind of anti-drop device load-bearing protective cover, described load-bearing protective cover is provided with several bayonet units corresponding with the spacing straight trough of protective cover bracing frame; This bayonet unit comprises the special-shaped slot that is arranged on load-bearing protective cover and to be vertically inserted in this special-shaped slot and can to move along special-shaped slot the keeper snapping in spacing straight trough, the locating slot portion arranged in a crossed manner with spacing straight trough that described special-shaped slot comprises body groove portion and extends to form from side, body groove portion; The lower surface of described load-bearing protective cover is provided with the reinforcement gusset along load-bearing protective cover radial direction, and this reinforcement gusset is arc-shaped side outstanding downwards below.The utility model is simple and reliable for structure, long service life, can in moist, muddy atmosphere corrosion-resistant, resistance to oxidation for a long time, and load-bearing property is good.
Description
Technical field
The utility model relates to inspection well cover field, relates in particular to a kind of inspection shaft anti-drop device load-bearing protective cover.
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.
Existing inspection shaft anti-drop device also has employing load-bearing lid formula, but its structure also exists the place that can improve further.
Utility model content
For the problems referred to above, the utility model provides a kind of anti-drop device load-bearing protective cover, in order to support the use with protective cover bracing frame, has feature simple and reliable for structure.
To achieve these goals, the technical solution of the utility model is as follows:
Anti-drop device load-bearing protective cover, is characterized in that, described load-bearing protective cover is provided with several bayonet units corresponding with the spacing straight trough of protective cover bracing frame; This bayonet unit comprises the special-shaped slot that is arranged on load-bearing protective cover and to be vertically inserted in this special-shaped slot and can to move along special-shaped slot the keeper snapping in spacing straight trough, the locating slot portion arranged in a crossed manner with spacing straight trough that described special-shaped slot comprises body groove portion and extends to form from side, body groove portion; The lower surface of described load-bearing protective cover is provided with the reinforcement gusset along load-bearing protective cover radial direction, and this reinforcement gusset is arc-shaped side outstanding downwards below.
In the utility model, described load-bearing protective cover is provided with weep hole.
In the utility model, information identifier region is left in the center of described load-bearing protective cover.
The utility model is simple and reliable for structure, long service life, can in moist, muddy atmosphere corrosion-resistant, resistance to oxidation for a long time, and load-bearing property is good.
The detailed description and obtaining that feature of the present utility model can consult the graphic and following better embodiment of this case is well understood to.
Accompanying drawing explanation
Fig. 1 is the top view of load-bearing protective cover.
Fig. 2 is the upward view of load-bearing protective cover.
Fig. 3 is the lateral view of load-bearing protective cover.
Fig. 4 is the top view of protective cover bracing frame.
Fig. 5 is the connection diagram of load-bearing protective cover and protective cover bracing frame.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, setting forth the utility model further below in conjunction with specific embodiment.
See Fig. 1-5, a kind of inspection shaft anti-drop device, comprises load-bearing protective cover 100 and three protective cover bracing frame 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.
See Fig. 1,2 and 3, load-bearing protective cover 100 is used to prevent people or object from crashing in inspection shaft, and the outer contour shape of load-bearing protective cover 100 is circular, load-bearing protective cover is provided with weep hole 110.Information identifier region 120 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.
Load-bearing protective cover is provided with three bayonet units corresponding with the spacing straight trough of protective cover bracing frame; This bayonet unit comprise the special-shaped slot 130 that is arranged on load-bearing protective cover and to be vertically inserted in this special-shaped slot and can along special-shaped slot move snap in spacing straight trough keeper 140(see Fig. 5), the locating slot portion 132 arranged in a crossed manner with spacing straight trough that special-shaped slot comprises body groove portion 131 and extends to form from side, body groove portion.See Fig. 5, when load-bearing protective cover is placed on protective cover bracing frame, make by rotating load-bearing protective cover, locating slot portion on load-bearing protective cover is corresponding with the spacing straight trough on protective cover bracing frame, running fix part, make it snap in spacing straight trough at the crossover location in spacing straight trough and locating slot portion, realize load-bearing protective cover and be connected with protective cover bracing frame buckle.
The lower surface of load-bearing protective cover is provided with the reinforcement gusset 150 along load-bearing protective cover radial direction, and this reinforcement gusset is arc-shaped side 151 outstanding downwards below.Power more can be rapidly dispersed into the various piece of anti-fall cover by the reinforcement gusset of this structure when it is subject to impacting, strengthen the impact strength of anti-fall cover with this.
See Fig. 4, protective cover bracing frame 200 is arranged on below load-bearing protective cover in order to support load-bearing protective cover 100.The middle part of 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.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 upper surface of protective cover bracing frame is load bearing support face 220, load bearing support face is provided with spacing straight trough 221.
More than show and describe 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; the just principle of the present utility model described in above-described embodiment and manual; under the prerequisite not departing 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 (3)
1. anti-drop device load-bearing protective cover, is characterized in that, described load-bearing protective cover is provided with several bayonet units corresponding with the spacing straight trough of protective cover bracing frame; This bayonet unit comprises the special-shaped slot that is arranged on load-bearing protective cover and to be vertically inserted in this special-shaped slot and can to move along special-shaped slot the keeper snapping in spacing straight trough, the locating slot portion arranged in a crossed manner with spacing straight trough that described special-shaped slot comprises body groove portion and extends to form from side, body groove portion; The lower surface of described load-bearing protective cover is provided with the reinforcement gusset along load-bearing protective cover radial direction, and this reinforcement gusset is arc-shaped side outstanding downwards below.
2. anti-drop device load-bearing protective cover according to claim 1, is characterized in that, described load-bearing protective cover is provided with weep hole.
3. anti-drop device load-bearing protective cover according to claim 1, is characterized in that, information identifier region is left in the center of described load-bearing protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551346.6U CN204098082U (en) | 2014-09-24 | 2014-09-24 | Anti-drop device load-bearing protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551346.6U CN204098082U (en) | 2014-09-24 | 2014-09-24 | Anti-drop device load-bearing protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204098082U true CN204098082U (en) | 2015-01-14 |
Family
ID=52266525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420551346.6U Expired - Fee Related CN204098082U (en) | 2014-09-24 | 2014-09-24 | Anti-drop device load-bearing protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204098082U (en) |
-
2014
- 2014-09-24 CN CN201420551346.6U patent/CN204098082U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20190924 |