CN2208592Y - Theft-proof well lid - Google Patents
Theft-proof well lid Download PDFInfo
- Publication number
- CN2208592Y CN2208592Y CN 94217224 CN94217224U CN2208592Y CN 2208592 Y CN2208592 Y CN 2208592Y CN 94217224 CN94217224 CN 94217224 CN 94217224 U CN94217224 U CN 94217224U CN 2208592 Y CN2208592 Y CN 2208592Y
- Authority
- CN
- China
- Prior art keywords
- well lid
- rotating shaft
- theft
- special tool
- utility
- 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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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model relates to a theft-proof well lid which is composed of a well lid (2), a screw rotation disk (4), a rotation shaft (3), a screw-shaped hole (9) and a locking strip (5). A special tool is matched to open and close the utility model. When the rotation shaft is rotated, the screw-shaped hole pulls and pushes the locking strip to move to complete locking and opening functions. The utility model is characterized in that the structure is reasonable, the theft-proof well lid is locked firmly and reliably, and the theft-proof well lid can not be opened without the special tool. The theft-proof well lid can effectively avoid catastrophic consequences because the theft-proof well lid is stolen; The utility model has the advantages of low cost and convenient popularization and application.
Description
The utility model belongs to the underground or underwater structure in the building class.
Existing underground well lid does not have theft-prevention structure more, often because of stolen traffic accident takes place, and goes back threat to life sometimes.Therefore, also there are some anti-stealing manhole covers to occur, are characterized in finishing this purpose with a crank-link mechanism.This structure can effectively lock well lid, but owing to the moving line of connecting rod in the crank-link mechanism is oscillating motion, therefore fixing and spacing connecting rod needs certain suitable scope, because underground installations such as sewer are very moist, member is corrosion very easily.Be prone to the phenomenon of blocking and influence operation for the connecting rod that in keeper, swings.And may be because of rotating the phenomenon appearance that unlatching excessively once more or locking well lid are not known when locking and unlatching well lid.
Invention order of the present utility model will be invented exactly and a kind ofly can effectively pin well lid, and simultaneously, bolt moves along well lid radial direction straight line, can avoid opening and closing the anti-stealing manhole cover of inconvenience because of corrosion possibly.
Structure of the present utility model is such, form by well lid (2) and cover plate dish (1), in the back of well lid (2) a helical rotation dish (4) is installed, the helical rotation dish is fixed in the rotating shaft (3), rotating shaft (3) is installed in the mesopore of well lid (2) and is free to rotate, rotating shaft (3) is rotated by special tool (8), the movable bolt (5) that can move along radial direction is arranged behind well lid, and the centre of bolt slip cap respectively is connected in the spiral-shaped orifices (9) of blistering wheel effect of helical rotation dish (4).Movable bolt is two or three.
Effect of the present utility model is such, owing to adopt the helix cam, by moving of cam helix control bolt, therefore, bolt moves along rectilinear direction, is not subjected to lateral force, in wet environment also not because of the corrosion akinesia.And the energy automatic spacing can not open lid excessively once more because of rotating, and after closing the lid, uses the special tool rotating shaft, and rotating shaft drives the helical rotation dish and rotates, and threaded hole is extrapolated with bolt, and bolt blocks the cover plate dish, the pinning well lid.When need are opened well lid, then can retract bolt with the rotating shaft of special tool backward rotation, open well lid.Because rotating shaft and special tool are supporting, therefore only need take good care of special tool, if accidentally special tool is lost, also can change rotating shaft and special tool easily.
Accompanying drawing 1 is the lateral view of the utility model structure.
Accompanying drawing 2 is the following view of the utility model structure.
Accompanying drawing 3 is a special tool outline drawing of the present utility model.
Below be embodiment of the present utility model, form by well lid (2) and cover plate dish (1), in the back of well lid (2) a helical rotation dish (4) is installed, the helical rotation dish is fixed in the rotating shaft (3), rotating shaft (3) is installed in the mesopore of well lid (2) and is free to rotate, rotating shaft (3) is rotated by special tool (8), the movable bolt (5) that can move along radial direction is arranged behind well lid, and the centre of bolt slip cap respectively is connected in the spiral-shaped orifices (9) of blistering wheel effect of helical rotation dish (4).Described rotating shaft (3) is a heptagon rotating shaft.Described special tool (8) is one to have and the special tool of the heptagon endoporus that rotating shaft (3) matches.Movable bolt (5) is two.(6), (7) are the clamp nut packing ring.
Claims (5)
1, a kind of anti-stealing manhole cover of forming by well lid (2) and cover plate dish (1), it is characterized in that a helical rotation dish (4) being installed in the back of well lid (2), on the helical rotation dish, have two or three spiral-shaped orifices (9), the helical rotation dish is fixed in the rotating shaft (3), rotating shaft (3) is installed in the mesopore of well lid (2) and is free to rotate, rotating shaft (3) is rotated by special tool (8), the movable bolt (5) that can move along radial direction is arranged behind well lid, and the centre of bolt slip cap respectively is connected in the spiral-shaped orifices (9) of blistering wheel effect of helical rotation dish (4).
2, anti-stealing manhole cover as claimed in claim 1 is characterized in that described rotating shaft (3) is a heptagon rotating shaft.
3, anti-stealing manhole cover as claimed in claim 1 is characterized in that described special tool (8) is one to have and the special tool of the heptagon endoporus that rotating shaft (3) matches.
4, anti-stealing manhole cover as claimed in claim 1 is characterized in that described movable bolt (5) is two, and spiral-shaped orifices (9) is two.
5, anti-stealing manhole cover as claimed in claim 1 is characterized in that described movable bolt (5) is three, and spiral-shaped orifices (9) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217224 CN2208592Y (en) | 1994-07-14 | 1994-07-14 | Theft-proof well lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94217224 CN2208592Y (en) | 1994-07-14 | 1994-07-14 | Theft-proof well lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2208592Y true CN2208592Y (en) | 1995-09-27 |
Family
ID=33832728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94217224 Expired - Fee Related CN2208592Y (en) | 1994-07-14 | 1994-07-14 | Theft-proof well lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2208592Y (en) |
-
1994
- 1994-07-14 CN CN 94217224 patent/CN2208592Y/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 | ||
| 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 |