CN2287171Y - Self-locked manhole cover against stealing - Google Patents
Self-locked manhole cover against stealing Download PDFInfo
- Publication number
- CN2287171Y CN2287171Y CN 96226697 CN96226697U CN2287171Y CN 2287171 Y CN2287171 Y CN 2287171Y CN 96226697 CN96226697 CN 96226697 CN 96226697 U CN96226697 U CN 96226697U CN 2287171 Y CN2287171 Y CN 2287171Y
- Authority
- CN
- China
- Prior art keywords
- blade
- locking
- self
- lid
- manhole cover
- 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
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Abstract
The utility model relates to a self-locked manhole cover against stealing. The utility model is composed of a base (1), a cover body (2), an upper and a lower rotating vanes (3) (7), a locking rotating vanes (4) (6), a middle rotating vane (5), a threaded rod (8), a nut (9) and a spring (10). A self-locking mechanism is arranged on the manhole cover, and thus the anti-theft cover for the manhole can be ensured not to be opened or stolen. The economic loss can be avoided, and the safety of the person and the vehicle can also be ensured. The utility model has the advantages of novel structure, reliable performances of locking and opening.
Description
The utility model relates to a kind of self-locking antitheft inspection shaft lid that is used for regional inspection shafts such as urban road, living area.Also can be used for water supply well, drink well, prevent to pollute or poison.
At present, normally used various inspection shaft lids all do not have blocking mechanism, thereby can arbitrarily be opened by unrelated person, and the accident of falling in the well because of the stolen pedestrian of causing of well lid, vehicle happens occasionally.This kind situation had both influenced traffic, again personal safety was threatened, to composition of society's one big public hazards.The inspection shaft that development has anti-theft feature covers, avoids above-mentioned public hazards that the urgent problem that needs to be resolved hurrily takes place to have become.
Task of the present utility model is to provide a kind of self-locking antitheft inspection shaft lid, and this kind inspection shaft is covered with blocking mechanism, can make well lid be in blocking at ordinary times, prevents to be opened by unrelated person and lose.
The utility model is achieved in that it is by base (1), lid (2), blade (3) up and down, (7), locking blade (4), (6), middle blade (5), screw rod (8), nut (9) and spring (10) are formed, its structure and assembling feature are as follows: lid (2) seat is placed on base (1) step, lid (2) is gone up in symmetrically arranged 4 screws screw rod (8) is housed respectively, on the screw rod (8) from top to bottom successively superposing type be set with blade (3), middle blade (5) and following blade (7), on, following blade (3), (7) with in the middle of the middle blade (5) be respectively equipped with locking blade (4), (6), the lower end is fastening with nut (9); Be respectively equipped with spring (10) with both tensions between last blade (3) and locking blade (4), following blade (7) and the locking blade (6).To be installed in the inspection shaft top by the inspection shaft lid of said structure assembling, under the effect of spring (10), the projection of locking blade (4), (6) is stuck in respectively in the groove of base (1) and under the step, makes well lid be in locking states.When needing to open well lid, two identical private keys are inserted in two keyholes on the lid (2) simultaneously, and the angle that turns clockwise is rotated locking blade (4), (6), its projection promptly with base (1) on groove and step be separated, well lid promptly is opened.
The utility model novel structure, is opened dependable performance at locking, because this kind well lid is provided with self-locking mechanism, thereby can guarantee that it is unlikelyly opened or steal by the people, both can avoid economic loss, can guarantee the person, vehicle safety again, is suitable for and applies.
Fig. 1 is the utility model structural representation (left side of drawing among the figure, right-hand part be a symmetry with it, does not draw among the figure).
Fig. 2 is Fig. 1 vertical view.Fig. 3 is an A-A sectional drawing among Fig. 2.
Fig. 4 opens the private key structural representation for well lid.Fig. 5 is its lateral view.
Below in conjunction with accompanying drawing enforcement of the present utility model is described further.
Each parts of the utility model are ironcasting.Wherein, base (1) matches with well head, the outside is uniformly distributed with 6 road triangle gussets along the circumference, its underpart is provided with abutment and is put in the round platform that well head is used, top is provided with for the circular groove that lid (2) is installed, and the circular groove height is identical with lid (2) thickness, and circular groove below perisporium is provided with groove one, the bottom internal diameter is big slightly, forms step one.Lid (2) is in the form of annular discs, and its middle part left and right symmetrically is provided with the keyhole of a pair of both sides band key, and limit portion bilateral symmetry is provided with the screw of 4 dress bolt (8) usefulness.Upper and lower blade (3), (7) are respectively the hollow rhombogen of upper and lower part band round platform, and internal diameter and bolt (8) match, and round table surface is provided with the alignment pin of a cylindrical projection, and an end is provided with an arc and protrudes, and establish an extension spring (10) on the protrusion and use aperture.Locking blade (4), (6) are triangular in shape, and the bight is circular arc, protrude close one jiao with upper and lower blade arc and establish one and hang spring (10) and use aperture.Middle blade (5) is the hollow rhombogen, and its four jiaos is the arc surface transition, and bilateral symmetry is provided with screw.In addition, upper and lower blade (3), (7), locking blade (4), (6), middle blade (5) central authorities all have the keyhole of identical band key, and the position of matching between each blade has been equipped with the small stair (see figure 3) of centering effect.This self-locking manhole lid is opened private key (seeing Fig. 4, Fig. 5) and is " T " font, adopts steel round bar weldering system to form.
Claims (6)
1, a kind of self-locking antitheft inspection shaft lid, be made up of base (1), lid (2), upper and lower blade (3), (7), locking blade (4), (6), middle blade (5), screw rod (8), nut (9) and spring (1 0), it is characterized in that: lid (2) seat is placed on base (1) step; Lid (2) is gone up in symmetrically arranged 4 screws screw rod (8) is housed respectively, on the screw rod (8) from top to bottom successively superposing type be set with blade (3), middle blade (5) and following blade (7), upper and lower blade (3), (7) and middle locking blade (4), (6) of being respectively equipped with of middle blade (5), the lower end is fastening with nut (9); Last blade (3) and locking blade (4), down be respectively equipped with spring (10) between blade (7) and the locking blade (6), both ends of the spring is hung in up and down blade and locks on the aperture of blade.
2, self-locking antitheft inspection shaft lid according to claim 1 is characterized in that, base (1) outside is uniformly distributed with 6 road triangle gussets along the circumference, its underpart is provided with round platform, top is provided with circular groove, and circular groove below perisporium is provided with groove one, and step is formed one at the bottom.
3, self-locking antitheft inspection shaft lid according to claim 1 is characterized in that lid (2) is in the form of annular discs, and its middle part left and right symmetrically is provided with the keyhole of a pair of both sides band key, and limit portion bilateral symmetry is provided with 4 screws.
4, self-locking type manhole cover according to claim 1, it is characterized in that upper and lower blade (3), (7) are respectively the hollow rhombogen of upper and lower part band round platform, central authorities have the keyhole of band key, round table surface is provided with the alignment pin of a cylindrical projection, round platform one end is established an arc bossy body, establishes an aperture on the bossy body.
5, self-locking type manhole cover according to claim 1 is characterized in that locking blade (4), (6) are triangular in shape, and the bight is the circular arc table, and close with upper and lower blade arc boss one jiao is provided with an aperture.
6, self-locking type manhole cover according to claim 1 is characterized in that middle blade (5) is the hollow rhombogen, and central authorities have the keyhole of band key, and its four jiaos is the arc surface transition, and bilateral symmetry is provided with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226697 CN2287171Y (en) | 1996-06-27 | 1996-06-27 | Self-locked manhole cover against stealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226697 CN2287171Y (en) | 1996-06-27 | 1996-06-27 | Self-locked manhole cover against stealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2287171Y true CN2287171Y (en) | 1998-08-05 |
Family
ID=33905004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96226697 Expired - Fee Related CN2287171Y (en) | 1996-06-27 | 1996-06-27 | Self-locked manhole cover against stealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2287171Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654913B (en) * | 2009-09-11 | 2012-10-10 | 李博 | Invisible well cover |
| CN107351127A (en) * | 2017-09-02 | 2017-11-17 | 黄贤水 | A kind of high-end intelligent robot equipment |
-
1996
- 1996-06-27 CN CN 96226697 patent/CN2287171Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654913B (en) * | 2009-09-11 | 2012-10-10 | 李博 | Invisible well cover |
| CN107351127A (en) * | 2017-09-02 | 2017-11-17 | 黄贤水 | A kind of high-end intelligent robot equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |