CN201981554U - Anti-theft manhole cover - Google Patents
Anti-theft manhole cover Download PDFInfo
- Publication number
- CN201981554U CN201981554U CN2010206935433U CN201020693543U CN201981554U CN 201981554 U CN201981554 U CN 201981554U CN 2010206935433 U CN2010206935433 U CN 2010206935433U CN 201020693543 U CN201020693543 U CN 201020693543U CN 201981554 U CN201981554 U CN 201981554U
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- CN
- China
- Prior art keywords
- cover plate
- main cover
- jigsaw
- lock core
- inserting hole
- 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 an anti-theft manhole cover which comprises at least one main cover plate provided with a key hole, and a plurality of splicing plates which are spliced with the main cover plate, wherein locking mechanisms which are mutually locked are arranged among the main cover plate and the splicing plates, and each locking mechanism comprises a lock core which is arranged in the main cover plate and can rotate through a key, and a lock rod which can rotate along the lock core to realize the flexible action towards the side direction of the main cover plate; and the lock rod can extends out of the side wall of the main cover plate, the splicing plates adjacent to the main cover plate are respectively provided with an inserting hole for inserting the lock rod, and the lock core and the lock rod are linked through the meshing of a gear and a rack. In the anti-theft manhole cover, the lock rod in the main cover plate can push sliding rods in the splicing plates to move, so that the sliding rod in the previous splicing plate is inserted in the inserting hole of the next splicing plate, therefore, the whole splicing plates and the main cover plate form a whole body, and the anti-theft function can be realized; and when being assembled, the splicing plates can be aligned from up to down to be paved on a manhole, so that the assembly and the maintenance are very convenient.
Description
Technical field
The utility model relates to a kind of manhole cover improvement technology.
Background technology
In track laying processes such as optical cable, cable, all husky well can be set according to construction requirement, be used for the laying construction and the maintenance of convenient cable.And because copper material is contained in a lot of cable inside, often have the lawless person to enter the situation that Sha Jingzhong steals cable and take place, therefore, generally all the manhole cover with tamper-resistant function can be set in that sand is aboveground.Existing manhole cover generally comprises main cover plate and a plurality of jigsaw, is spliced to form a whole manhole cover mutually at main cover plate and each jigsaw.Sidewall between each jigsaw is provided with connecting pin, and connecting pin is interspersed in the two adjacent sheet materials, makes each sheet material form integral body by connecting pin, then is provided with locking mechanism on main cover plate, and locking mechanism can be locked in main cover plate on the adjacent jigsaw.During installation, at first the side from husky well is stitched together each jigsaw successively, guarantees that simultaneously connecting pin is interspersed in the adjacent panel simultaneously, and main cover plate is installed then, makes main cover plate and jigsaw form integral body by locking mechanism at last.Each jigsaw must be installed successively from the side jigsaw and connecting pin are in place when the manhole cover of this kind form was installed, and directly assembly unit is from the top down installed very inconvenient.
The utility model content
In view of this, the technical problems to be solved in the utility model provides a kind of modern design, easy for installation and have an antitheft manhole cover of good anti-theft effect.
In order to solve the problems of the technologies described above, the utility model is realized in the following way:
A kind of antitheft manhole cover, comprise that at least one is provided with the main cover plate of keyhole and the jigsaw of polylith and main cover plate splice, in main cover plate and each jigsaw, be provided with the locking mechanism of mutual locking, described locking mechanism comprises being arranged in the main cover plate and rotates the locking bar of realizing to main cover plate side directions expanding-contracting action by the rotating lock core of key and along with lock core, locking bar can be extended out main cover sidewall, the jigsaw adjacent with main cover plate is provided with the inserting hole of interspersed locking bar, realizes interlock by the wheel and rack engagement between lock core and the locking bar.
As improvement to such scheme, all have inserting hole on each jigsaw, each inserting hole concentric is provided with, and is interspersed with the litter that length slightly is shorter than the jigsaw width in the inserting hole of each jigsaw.
As further improving, described lock core periphery is provided with teeth and forms gear shaft, and the locking bar inner end is fixed with tooth bar, tooth bar and teeth engagement.
Simultaneously, the hole opening part of lock core being installed at main cover plate is provided with and prevents that foreign matter from entering the dust cap of lock core.
The utility model promotes by the locking bar in the main cover plate that litter moves in each jigsaw, litter in the last jigsaw is inserted in the inserting hole of a back jigsaw, make whole jigsaw and main cover plate form an integral body, play antitheft effect, and can directly aliging from top to down during the jigsaw installation, it is husky aboveground to be layed in, and installs, safeguards very convenient.
Description of drawings
Fig. 1 is the utility model embodiment one structural representation;
Fig. 2 is the utility model embodiment two structural representations.
The specific embodiment
Defective at prior art exists describes in further detail of the present utility model for the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing:
Embodiment one: as shown in Figure 1, the antitheft manhole cover that present embodiment discloses mainly comprises a main cover plate 1, polylith jigsaw 2, and main cover plate 1 is fixed by locking mechanism 3 splicings with a plurality of jigsaw 2 and formed an integral body, is covered in husky aboveground.
The locking mechanism 3 of this programme mainly comprises a lock core 31, two locking bars 32 and litter 34.Wherein, lock core 31 is installed in the main cover plate 1, can rotate by the private key that matches, the concrete shape of private key and lock core 31 couplings can arbitrarily design, suitable with being shaped as of adopting that conventional instrument can not rotational lock core 31, because of not being the present utility model point, do not give unnecessary details at this.
Described lock core 31 peripheries are provided with teeth 311, the formative gear shape shaft.Locking bar 32 inner ends then are fixed with tooth bar 321, tooth bar 321 and teeth 311 engagements, two locking bars 32 lay respectively at lock core 31 both sides, when lock core 31 rotates, by the engagement realization transmission of teeth 311, make two locking bars 32 flexible to main cover plate 1 two side respectively with tooth bar 321.
Jigsaw 2 is listed in main cover plate 1 side successively, in jigsaw 2, have horizontal inserting hole 33, inserting hole concentric on each jigsaw 2 is provided with, in the inserting hole of each jigsaw, be interspersed with length and slightly be shorter than the litter 34 of jigsaw width, after locking bar 32 stretches out from main cover plate 1 under the driving of lock core 31, litter in the inserting hole of promotion adjacent panel, this litter other end stretches out from this jigsaw another side, insert in the inserting hole of adjacent jigsaw, simultaneously the litter other end in this jigsaw inserting hole is released from the another side, this litter is interspersed in the inserting hole of adjacent jigsaw, so the litter in the lastblock jigsaw is inserted in next piece jigsaw successively, make main cover plate and each jigsaw type be spliced into an integral body by locking bar and litter, and main cover plate 1 sidewall and the jigsaw at close husky well head edge, then another locking bar and the litter by main cover plate is interspersed in the hole of husky well head edge correspondence, makes whole manhole cover fixedly locked in husky well head.During unlatching, at first utilizing key turn lock core, is the locking bar retraction, then can directly main cover plate be mentioned, and other jigsaw can be withdrawn from successively along the litter direction.
As seen, the existing relatively manhole cover dismounting of the utility model is all very convenient, has good anti-theft effect.
Simultaneously, in order to prevent that foreign matter from entering the lock core influence and using, the hole opening part that lock core is installed at main cover plate is provided with dust cap.
Embodiment two: accompanying drawing 2 is depicted as another concrete structure schematic diagram of the utility model for another example.In this structure, main cover plate 1 is arranged between two jigsaw 2, the locking bar 32 of main cover plate 1 interts respectively from both sides to two jigsaw, promotes litter 34 by locking bar 32 litter 34 is interted to the hole of husky well head edge correspondence, forms manhole cover integral body and is covered on the husky well head.Miscellaneous part of this structure and principle are all similar to mode among the embodiment one, do not give unnecessary details at this.
The above embodiment has only expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. antitheft manhole cover, comprise that at least one is provided with the main cover plate (1) of keyhole and the jigsaw (2) of polylith and main cover plate splice, in main cover plate and each jigsaw, be provided with the locking mechanism (3) of mutual locking, it is characterized in that: described locking mechanism comprises being arranged in the main cover plate and rotates the locking bar of realizing to main cover plate side directions expanding-contracting action (32) by the rotating lock core of key (31) and along with lock core, locking bar can be extended out main cover sidewall, the jigsaw adjacent with main cover plate is provided with the inserting hole (33) of interspersed locking bar, realizes interlock by the wheel and rack engagement between lock core and the locking bar.
2. antitheft manhole cover according to claim 1 is characterized in that: all have inserting hole on each jigsaw, each inserting hole concentric is provided with, and is interspersed with the litter (34) that length slightly is shorter than the jigsaw width in the inserting hole of each jigsaw.
3. antitheft manhole cover according to claim 2 is characterized in that: described lock core periphery is provided with teeth (311) formative gear axle, and the locking bar inner end is fixed with tooth bar (321), tooth bar and teeth engagement.
4. according to any described antitheft manhole cover in the claim 1～3, it is characterized in that: the hole opening part of lock core being installed at main cover plate is provided with and prevents that foreign matter from entering the dust cap of lock core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206935433U CN201981554U (en) | 2010-12-31 | 2010-12-31 | Anti-theft manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206935433U CN201981554U (en) | 2010-12-31 | 2010-12-31 | Anti-theft manhole cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201981554U true CN201981554U (en) | 2011-09-21 |
Family
ID=44609017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206935433U Expired - Fee Related CN201981554U (en) | 2010-12-31 | 2010-12-31 | Anti-theft manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201981554U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075360A (en) * | 2016-11-08 | 2018-05-25 | 珠海优特电力科技股份有限公司 | Pressing plate blocking device |
| CN112854899A (en) * | 2021-01-13 | 2021-05-28 | 杭州杭水市政工程有限公司 | Municipal works foundation ditch safety device |
-
2010
- 2010-12-31 CN CN2010206935433U patent/CN201981554U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075360A (en) * | 2016-11-08 | 2018-05-25 | 珠海优特电力科技股份有限公司 | Pressing plate blocking device |
| CN108075360B (en) * | 2016-11-08 | 2024-03-15 | 珠海优特电力科技股份有限公司 | Pressing plate locking device |
| CN112854899A (en) * | 2021-01-13 | 2021-05-28 | 杭州杭水市政工程有限公司 | Municipal works foundation ditch safety device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20121231 |