CN2667016Y - Safety manhole cover - Google Patents
Safety manhole cover Download PDFInfo
- Publication number
- CN2667016Y CN2667016Y CN 200420010012 CN200420010012U CN2667016Y CN 2667016 Y CN2667016 Y CN 2667016Y CN 200420010012 CN200420010012 CN 200420010012 CN 200420010012 U CN200420010012 U CN 200420010012U CN 2667016 Y CN2667016 Y CN 2667016Y
- Authority
- CN
- China
- Prior art keywords
- cover body
- trapezoidal
- base
- manhole
- lid
- 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
Links
- 230000001788 irregular Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a safety manhole cover comprising a cover body and a manhole base. A connecting base with a trapezoidal concave cavity is provided at an edge of the manhole base. A semicircular hole is provided on top surface of the connecting base, and a trapezoidal thread axis is sleeved within the trapezoidal concave cavity. An embedded surface below the cover body and corresponding part of the trapezoidal thread axis are provided with a trapezoidal thread connecting with the embedded surface and the corresponding part. The cover body and corresponding part of the semicircular hole connecting with the top surface of the connecting base are also provided with a semicircular hole, which forms a circular keyhole after butting with the trapezoidal thread; 1. The utility model provides an anti-theft cover body, providing a locking device on the cover body and the manhole base of the manhole cover. The locking device consists of the trapezoidal thread axis sleeved within the trapezoidal concave cavity on the manhole base and the trapezoidal thread on the embedded surface below the cover body. When fixing, a key is inserted into the keyhole to screw the trapezoidal thread axis tight and lock the cover body and the manhole base together. 2. In order to prevent heavy wind or people and vehicles hitting an open cover body, and sudden closing of a heavy cover body from damaging personnel in a manhole, the utility model changes fixed connection of the cover body and the manhole base into movable connection. When opening the cover body for overhaul, the cover body can be placed aside and covered in original place after the overhaul.
Description
Technical field
The utility model relates to a kind of municipal protective equipment of underground pipeline facility well heads such as a kind of water supply and draining, heat, coal gas, telecommunications, especially a kind of Safety well cover.
Background technology
The cable well lid and the rainwater well lid that use on road at present, frequent for various reasons stolen robbery walks, or is held up by rainwater because of raining and to produce displacement and lose, and causes very big hidden danger for the safety of the vehicle and the person, causes very burden to municipal administration department.The lid and the base of existing in addition well lid connect firmly together by attachment pegs, and when opening lid and overhaul, the open degree of lid can only when blowing hard or have people and vehicle to run into lid, damage easily for the personnel of down-hole about 90 °.
The utility model content
The purpose of this utility model provides a kind of novel structure, the Safety well cover that security performance is high.
The technical solution of the utility model is: a kind of Safety well cover, comprise lid and base, connection seat with trapezoidal cavity is arranged at the base edge, at the connection seat end face one semi-circular hole is arranged, suit one spindle with trapezoidal screw thread in trapezoidal cavity, be provided with the trapezoidal thread that connects with it with the spindle with trapezoidal screw thread corresponding position on embedded below lid, the semi-circular hole corresponding position with the connection seat end face on lid also is provided with a semi-circular hole, and the butt joint back forms a round keyhole; Be provided with a dried hook of horizontal Y type that engages with the base edge at the lid other end, on the axial plane of spindle with trapezoidal screw thread, have groove.
Above-mentioned groove is triangle or square or irregular shape.
The size of trapezoidal cavity is greater than spindle with trapezoidal screw thread.
The utility model has following advantage:
1, can prevent that nature dislocation and people from being the lid of stealing well lid
Owing to be provided with a locking device on the lid of well lid and base, the trapezoidal thread on this locking device embedded below the spindle with trapezoidal screw thread of suit in the base upper trapezoid cavity and lid is formed.During installation, the spindle with trapezoidal screw thread on trapezoidal thread (being equivalent to nut) the aligning base of loam cake below, put down lid and make the dried hook of horizontal Y type of the other end catch on the base edge, the insertion key screws spindle with trapezoidal screw thread lid and base is locked together in together from lockhole.When needs are opened lid, use with the spindle with trapezoidal screw thread end face on the adaptive key of groove from keyhole, insert key and screw thread on lid and the base broken away from the spindle with trapezoidal screw thread backspin to get final product.
2, when blowing hard or have people and vehicle to run into the lid of unlatching, the personnel that heavy lid is detained suddenly to the down-hole damage, and the utility model makes being fixedly connected of lid and base into movable the connection.When opening cover overhauls, lid can be put aside, again its return be built after having overhauled.
Description of drawings
Fig. 1 is the lid front view;
Fig. 2 is half lid vertical view;
Fig. 3 is the utility model structure sectional view;
Fig. 4 is the utility model structure vertical view.
The specific embodiment
Structure of the present utility model such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, comprise lid 1 and base 2, connection seat 4 with trapezoidal cavity 3 is arranged at base 2 edges, at the connection seat end face one semi-circular hole 5 is arranged, suit one spindle with trapezoidal screw thread 6 in trapezoidal cavity, the size of trapezoidal cavity 3 is greater than spindle with trapezoidal screw thread 6.Be provided with the trapezoidal thread 7 that connects with it with spindle with trapezoidal screw thread 6 corresponding positions on embedded below lid, the semi-circular hole corresponding position with the connection seat end face on lid 1 also is provided with a semi-circular hole 8, and the butt joint back forms a round keyhole; Be provided with a dried hook 9 of horizontal Y type that engages with the base edge at the lid other end, on the axial plane of spindle with trapezoidal screw thread, have groove 10.Groove can be triangle or square or irregular shape.
Using method of the present utility model: during locking, the spindle with trapezoidal screw thread 6 on the trapezoidal thread 7 (being equivalent to nut) of the lid 1 below aligning base, put down lid and make the dried hook 9 of horizontal Y type of the other end catch on base 2 edges, the insertion key screws spindle with trapezoidal screw thread 6 lid 1 and base 2 is locked together in together from lockhole.When needs are opened lid, use with the spindle with trapezoidal screw thread end face on the adaptive key of groove 10 from keyhole, insert key and screw thread on lid and the base broken away from the spindle with trapezoidal screw thread backspin to get final product.
Claims (3)
1, a kind of Safety well cover, comprise lid and base, it is characterized in that: the connection seat with trapezoidal cavity is arranged at the base edge, at the connection seat end face one semi-circular hole is arranged, suit one spindle with trapezoidal screw thread in trapezoidal cavity, be provided with the trapezoidal thread that connects with it with the spindle with trapezoidal screw thread corresponding position on embedded below lid, the semi-circular hole corresponding position with the connection seat end face on lid also is provided with a semi-circular hole, and the butt joint back forms a round keyhole; Be provided with a dried hook of horizontal Y type that engages with the base edge at the lid other end, on the axial plane of spindle with trapezoidal screw thread, have groove.
2, Safety well cover according to claim 1 is characterized in that: above-mentioned groove is triangle or square or irregular shape.
3, Safety well cover according to claim 1 is characterized in that: the size of trapezoidal cavity is greater than spindle with trapezoidal screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010012 CN2667016Y (en) | 2004-01-05 | 2004-01-05 | Safety manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010012 CN2667016Y (en) | 2004-01-05 | 2004-01-05 | Safety manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667016Y true CN2667016Y (en) | 2004-12-29 |
Family
ID=34352479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010012 Expired - Fee Related CN2667016Y (en) | 2004-01-05 | 2004-01-05 | Safety manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667016Y (en) |
-
2004
- 2004-01-05 CN CN 200420010012 patent/CN2667016Y/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 |