CN2268051Y - Anti-theft manhole cover - Google Patents
Anti-theft manhole cover Download PDFInfo
- Publication number
- CN2268051Y CN2268051Y CN 96235121 CN96235121U CN2268051Y CN 2268051 Y CN2268051 Y CN 2268051Y CN 96235121 CN96235121 CN 96235121 CN 96235121 U CN96235121 U CN 96235121U CN 2268051 Y CN2268051 Y CN 2268051Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- hole
- deflector rod
- latch
- rod 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
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- Lock And Its Accessories (AREA)
Abstract
The utility model relates to a manhole cover arranged on an underground device, which comprises a manhole ring and a cover plate. One end of a diameter arranged at the back of the cover plate is provided with a fixing clamp lock, and the other end is provided with a deflector rod device. A key hole is positioned on the cover plate and is near the deflector rod device. The utility model is characterized in that the deflector rod device comprises a movable bolt arranged on the cover plate, a return spring is arranged on the bolt, and the tail part is provided with a pushing plate. A guard sheet is arranged between the key hole and the movable bolt, and a hole for the passing of key teeth is arranged on the guard sheet. The tail end of the bolt is provided with a spring sheet which can be clamped in the hole, and a stopping device of each of the movable bolt and the fixing clamp lock is arranged on the manhole ring. The utility model has the advantages of good theftproof function, simple structure and low cost.
Description
The utility model relates to a kind of Manhole covers that is provided with, particularly a kind of anti-stealing manhole cover on underground devices such as urban sewerage and drainage, tap water, communication.
Present widely used Manhole covers does not all have anti-thefting facility, and stolen incident often takes place, and brings danger for pedestrian and vehicle, therefore, and the robbed or burgled problem demanding prompt solution that becomes of Manhole covers.Application 2197390 discloses a kind of anti-stealing manhole cover, its cover plate and walling crib have fixedly, and kayser and telescopic dead bolt two places connect, have only the special tool of use to open, but be provided with difference between the well lid of the same race, just can open all this well lids if the burglar has grasped an instrument, anti-theft effect is not good.
The purpose of this utility model provides a kind of well lid with better anti-theft feature.
Scheme of the present utility model is: comprise walling crib and cover plate, on an end position of the diameter in the cover plate back side, be provided with fixedly kayser, the other end is provided with deflector rod device, be positioned on the cover plate deflector rod device near be provided with keyhole, difference is that deflector rod device comprises the movable latch of being located on the cover plate, latch is provided with back-moving spring and afterbody is provided with push pedal, be provided with catch between keyhole and the movable latch, establish the hole that to pass through by key bit on the catch, the latch afterbody is provided with the shell fragment that can snap in this hole, and doubling-up is provided with the movable latch and the fixing stop device of kayser.
The utility model stretches out latch by back-moving spring when static, and shell fragment snaps in the hole of catch.During installation fixedly kayser snap in walling crib earlier, pass key behind the keyhole of cover plate with key again, back down shell fragment and stir push pedal pulling movable latch, unclamp key after putting down cover plate thereby key bit passes hole on the catch, effect by back-moving spring makes latch insert walling crib, from the face securing cover plate.In the time of need opening cover plate, rotate after key inserted keyhole, just can mention cover plate.Because key bit must pass the hole on the catch and back down just stretchy latch of shell fragment, the quantity in the hole on the catch and change in location can make the utility model make multiple model, and the key of unlatching is all different, and anti-theft effect is greatly improved.In addition, the utility model is simple in structure, and cost is low, is easy to promote.
Fig. 1 is an embodiment front view of the present utility model.
Fig. 2 is the E-E sectional view of Fig. 1.
Fig. 3 is the M place enlarged drawing of Fig. 2.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the key schematic diagram.
Fig. 6 is another embodiment front view of the utility model.
Fig. 7 is the D-D sectional view of Fig. 6.
Shown in Fig. 1-5, walling crib 1 is provided with a convex annular edge, and a boss is established at the edge of cover plate 2 inside sides, and this boss is fixing kayser, and the convex annular that can make walling crib is along the space that embeds between boss and the cover plate bottom surface, and this convex annular is along the formation stop device.The other end at cover plate boss place diameter is established deflector rod device, and deflector rod device comprises movable latch 8, is located at the back-moving spring 9 on the latch and the push pedal 11 of latch afterbody, establishes the hole 3 that can be passed through by key bit on the catch 4, and the latch afterbody is provided with the shell fragment 10 that can snap in hole 3.5 is keyhole among the figure, and B is the position that latch pins cover plate, and C is the position that latch is pushed aside by key.
Among Fig. 6 and the embodiment shown in Figure 7, the fixedly kayser on the cover plate is a steady pin 12, and the stop device on the walling crib is the hole that cooperates with this steady pin and movable latch.Present embodiment can be obtained through repacking by existing well lid.
Claims (1)
1, a kind of anti-stealing manhole cover, comprise walling crib and cover plate, on an end position of the diameter in the cover plate back side, be provided with fixedly kayser, the other end is provided with deflector rod device, be positioned on the cover plate deflector rod device near be provided with keyhole, it is characterized in that deflector rod device comprises the movable latch of being located on the cover plate, latch is provided with back-moving spring and afterbody is provided with push pedal, be provided with catch between keyhole and the movable latch, establish the hole that to pass through by key bit on the catch, the latch afterbody is provided with the shell fragment that can snap in this hole, and walling crib is provided with the movable latch and the fixing stop device of kayser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96235121 CN2268051Y (en) | 1996-06-21 | 1996-06-21 | Anti-theft manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96235121 CN2268051Y (en) | 1996-06-21 | 1996-06-21 | Anti-theft manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2268051Y true CN2268051Y (en) | 1997-11-19 |
Family
ID=33911277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96235121 Expired - Fee Related CN2268051Y (en) | 1996-06-21 | 1996-06-21 | Anti-theft manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2268051Y (en) |
-
1996
- 1996-06-21 CN CN 96235121 patent/CN2268051Y/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 |