CN204370481U - Rainy day prevents lifting steel grating well lid - Google Patents
Rainy day prevents lifting steel grating well lid Download PDFInfo
- Publication number
- CN204370481U CN204370481U CN201420866973.9U CN201420866973U CN204370481U CN 204370481 U CN204370481 U CN 204370481U CN 201420866973 U CN201420866973 U CN 201420866973U CN 204370481 U CN204370481 U CN 204370481U
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- well lid
- base
- bolt
- nut
- steel grating
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Abstract
The utility model relates to a kind of rainy day and anti-ly lifts steel grating well lid, comprise base and well lid, described base is cylindric, described base inner headed face has two grooves, described two grooves about base axis Central Symmetry, the upper and lower end face of the through base of described groove, the shape of groove is L shape, described well lid has two through holes, the line at described two through hole centers is through the center of circle of well lid, and described base is connected by screw bolt and nut with well lid.Well lid is bolted on base, rotary well cover, and it is inner that bolt enters base L shape groove, then swivel bolt and 90 °, nut, nut is stuck in below base, thus locking well lid, prevent it from loosening or being washed away by rainwater, cause potential safety hazard, structure is simple, easy accessibility.
Description
Technical field
The utility model relates to urban construction facility technology field, and especially a kind of rainy day prevents lifting steel grating well lid.
Background technology
In recent years, along with the development of economic society, city size expands, and the building size of sewer is expanded thereupon, but one run into rainy, rainwater pours in down a chimney and washes away the safety problem that well lid causes and also increase thereupon, but present well lid design often only designs anti-theft feature, and entirety is fixed on roadbed, when sewer rainwater pours in down a chimney, inside is in pressure closed state, causes well lid to loosen and is even flushed away, cause serious potential safety hazard.
Utility model content
The technical problems to be solved in the utility model is: rainy day sewer pipe well lid be easily subject to rain-impact easily loosen even be flushed away, cause serious potential safety hazard.In order to solve the problem, a kind of rainy day is provided to prevent lifting steel grating well lid.
The utility model solves the technical scheme that its technical problem adopts: a kind of rainy day is anti-lifts steel grating well lid, comprise base and well lid, described base is cylindric, described base inner headed face has two L shape grooves, described two L shape grooves are about base axis Central Symmetry, and the upper and lower end face of the through base of described L shape groove, described well lid has two through holes, the line at described two through hole centers is through the center of circle of well lid, and described base is connected by screw bolt and nut with well lid.
Described base lower surface is provided with limited block near L shape groove place.
The nut end face of described bolt is provided with yi word pattern projection.
Described bolt is half-thread bolt, and on bolt, the transition position of polished rod section and screw thread rod end is provided with the back-up ring of protrusion.
Described nut is that cuboid is block, and one end of nut has screwed hole.
Described well lid is that steel grating is made.
During installation, first by the through hole of bolt through well lid, be screwed into nut, the back-up ring that on bolt, the transition position of polished rod section and screw thread rod end is provided with protrusion can prevent nut upwards turn, again well lid is put in above base, make the L shape groove of the through-hole alignment base of well lid, bolts and nuts are by the L shape groove of base, well lid drops on after on base, rotary well cover, because well lid adopts steel grating, rotary well cover is very laborsaving, bolt is made to enter L shape groove inner, then by the protruding swivel bolt of the yi word pattern of bolt end face and 90 °, nut, the limited block of base lower surface then can limit nut and move to L shape channel opening place, well lid is locked with this, prevent it from loosening or being washed away by rainwater.During dismounting, by bolt opposite spin 90 °, then reversely rotate well lid, well lid can be taken out, very convenient.
The beneficial effects of the utility model are, well lid is bolted on base, rotary well cover, it is inner that bolt enters base L shape groove, then swivel bolt and 90 °, nut, nut is stuck in below base, thus locking well lid, prevent it from loosening or being washed away by rainwater, cause potential safety hazard, structure is simple, easy accessibility.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the top view of base of the present utility model;
Fig. 2 is the top view of well lid of the present utility model;
Fig. 3 is the top view of bolt of the present utility model;
Fig. 4 is the front view of bolt of the present utility model;
Fig. 5 is mounting structure schematic diagram of the present utility model;
Fig. 6 is well lid locking structural representation of the present utility model.
In figure: 1. base, 11.L shape groove, 12. limited blocks, 2. well lid, 21. through holes, 3. bolt, 31. is protruding, 32. back-up rings, 4. nut.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in figures 1 to 6, a kind of rainy day prevents lifting steel grating well lid, comprise base 1 and well lid 2, base 1 is cylindric, base 1 inner headed face has two L shape grooves 11, two L shape grooves 11 are symmetrical about base 1 axis centre, the upper and lower end face of the through base 1 of L shape groove 11, base 1 lower surface is provided with limited block 12 near L shape groove place 11, well lid 2 is made for steel grating, well lid 2 has two through holes 21, the line at two through hole 21 centers is through the center of circle of well lid 2, base 1 is connected with nut 4 by bolt 3 with well lid 2, the nut end face of bolt 3 is provided with yi word pattern projection 31, bolt 3 is half-thread bolt 3, on bolt 3, the transition position of polished rod section and screw thread rod end is provided with the back-up ring 32 of protrusion, nut 4 is that cuboid is block, one end of nut 4 has screwed hole.
During installation, first by the through hole 21 of bolt 3 through well lid 2, be screwed into nut 4, the back-up ring 31 that on bolt 3, the transition position of polished rod section and screw thread rod end is provided with protrusion can prevent nut 4 upwards turn, again well lid 2 is put in above base 1, the through hole 21 of well lid 2 is made to aim at the L shape groove 11 of base 1, bolt 3 and the L shape groove 11 of nut 4 by base 1, well lid 2 drops on after on base 1, rotary well cover 2, because well lid 2 adopts steel grating, rotary well cover 20 points is laborsaving, bolt 3 is made to enter L shape groove 11 inner, then by protruding 31 swivel bolts 3 of the yi word pattern of bolt 3 end face and 4 nine ten degree, nut, the limited block 12 of base 1 lower surface can limit nut 4 and move to L shape groove 11 opening part, well lid 2 is locked with this, prevent it from loosening or being washed away by rainwater.During dismounting, by bolt 3 opposite spin 90 °, then reversely rotate well lid 2, well lid 2 can be taken out, very convenient.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on manual, must determine its technical scope according to right.
Claims (6)
1. a rainy day prevents lifting steel grating well lid, it is characterized in that: comprise base (1) and well lid (2), described base (1) is cylindric, described base (1) inner headed face has two L shape grooves (11), described two L shape grooves (11) are symmetrical about base (1) axis centre, the upper and lower end face of the through base of described L shape groove (11) (1), described well lid (2) has two through holes (21), the line at described two through hole (21) centers is through the center of circle of well lid (2), described base (1) is connected with nut (4) by bolt (3) with well lid (2).
2. the rainy day as claimed in claim 1 prevents lifting steel grating well lid, it is characterized in that: described base (1) lower surface is provided with limited block (12) near L shape groove (11) place.
3. the rainy day as claimed in claim 1 prevents lifting steel grating well lid, it is characterized in that: the nut end face of described bolt (3) is provided with yi word pattern projection (31).
4. the rainy day as claimed in claim 1 prevents lifting steel grating well lid, it is characterized in that: described bolt (3) is half-thread bolt, and the transition position of the upper polished rod section of bolt (3) and screw thread rod end is provided with the back-up ring (32) of protrusion.
5. the rainy day as claimed in claim 1 prevents lifting steel grating well lid, it is characterized in that: described nut (4) is that cuboid is block, and one end of nut (4) has screwed hole.
6. the rainy day as claimed in claim 1 anti-ly lifts steel grating well lid, it is characterized in that: described well lid (2) is made for steel grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420866973.9U CN204370481U (en) | 2014-12-31 | 2014-12-31 | Rainy day prevents lifting steel grating well lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420866973.9U CN204370481U (en) | 2014-12-31 | 2014-12-31 | Rainy day prevents lifting steel grating well lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204370481U true CN204370481U (en) | 2015-06-03 |
Family
ID=53326713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420866973.9U Active CN204370481U (en) | 2014-12-31 | 2014-12-31 | Rainy day prevents lifting steel grating well lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204370481U (en) |
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2014
- 2014-12-31 CN CN201420866973.9U patent/CN204370481U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |