CN2701917Y - Lock rod type theftproof well cover - Google Patents
Lock rod type theftproof well cover Download PDFInfo
- Publication number
- CN2701917Y CN2701917Y CN 200420040480 CN200420040480U CN2701917Y CN 2701917 Y CN2701917 Y CN 2701917Y CN 200420040480 CN200420040480 CN 200420040480 CN 200420040480 U CN200420040480 U CN 200420040480U CN 2701917 Y CN2701917 Y CN 2701917Y
- Authority
- CN
- China
- Prior art keywords
- boss
- lock rod
- locking bar
- manhole cover
- 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 discloses the technology of a lock rod type theftproof manhole cover. The theftproof manhole cover of the lock rod type is matched with a special tool and comprises a socket provided with a boss and a cover plate. The theftproof manhole cover of the lock rod type is characterized in that the edge part of the bottom surface of the cover plate is provided with a lock rod base, and the cover plate is buckled on the boss through the lock rod base. A connecting through hole is provided between the lock rod base and the boss, a lock rod bolt is arranged in the connecting through hole, and the lower segment of the rod body of the lock rod bolt is provided with an external thread. The external thread extends out of the boss, and the connecting through hole of the boss is provided with an internal thread; the rivet of the lock rod bolt is provided with a lock hole, and the upper segment of the rod body is provided with a self-locking spring through a fixing piece. The utility model can be matched with the special opening tool, and therefore, the theftproof manhole cover of the lock rod type has good theftproof effect. Simultaneously, the theftproof manhole cover of the lock rod type has the advantages of reasonable structure, relatively low production cost, convenient operation and use and good theftproof effect.
Description
Affiliated technical field
The utility model relates to municipal underground pipeline facility technology field, specifically a kind of anti-stealing manhole cover that is used for the various manholes in road surface, piping shaft.
Background technology
At present, the kind of various anti-stealing manhole covers is many, and the folding of adopting between cover plate and base that has connects, and the employing chain that has connects.Have in order to reach antitheft purpose, adopt such as coded lock, the isostructural anti-theft device of electronic lock.Though use the well lid of these structures to have certain antitheft effect, its effect is not very good, the various accidents that cause casualties after stolen because of well lid on the road surface occur repeatedly.The reason that situations such as anti-stealing manhole cover is non-anti-theft, anti-stealing manhole cover does not use occur: the structure that mainly is anti-stealing manhole cover also is not quite reasonable, and antitheft effect is poor, stealer can be gently by means such as sled, saws and magnanimous act undertaken for the public good steal well lid.Next be the cost of production of the anti-stealing manhole cover that has than higher, complex structure, thereby promote the use of in being difficult on a large scale.
Summary of the invention
In order to overcome the deficiency that existing anti-stealing manhole cover structurally exists, the utility model provides relatively reasonably locking bar formula anti-stealing manhole cover of a kind of that be used with the special opening instrument, good anti-theft effect, structure.
The technical scheme that its technical problem that solves the utility model adopts is: this locking bar formula anti-stealing manhole cover, with the supporting use of special tool, it comprises base and the cover plate of being with boss, mainly be that edge part in the cover plate bottom surface is provided with lock bar seat and cover plate is fastened on the boss of base by lock bar seat, be provided with connecting through hole in the middle of lock bar seat and the boss, the quantity of connecting through hole is 2～10, be provided with the locking bar bolt in the hole, the body of rod hypomere of locking bar bolt is provided with external screw thread and makes it stretch out boss, is provided with internal thread in the connecting through hole of boss; Be provided with lockhole in the die at said locking bar bolt top, be provided with the internal thread that special tool uses in the lockhole, be stamped dust cap on the lockhole, body of rod epimere is provided with self-locking spring by fixture, and the height of connecting through hole is consistent between the length of self-locking spring and lock bar seat and the boss; The surface of said well lid is provided with the mounting groove of locking bar bolt.
The utility model advantage compared with prior art mainly is rational in infrastructure, is used with the opener of special use, has good anti-theft effect.Simultaneously, cost of production is lower, good anti-theft effect, and manipulate more conveniently, promote the use of in helping on a large scale.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated, in the accompanying drawing:
Fig. 1 is a sectional structure schematic diagram of the present utility model;
Fig. 2 is the utility model plan structure schematic diagram;
Fig. 3 is the structural representation of the utility model locking bar bolt.
1. connecting through holes among the figure, 2. boss, 3. cover plate, 4. locking bar bolt, 5. lock bar seat, 6. base, 7. external screw thread, 8. fixture, 9. self-locking spring, 10. die, 11. lockholes, 12. mounting grooves, 13. body of rod hypomeres.
The specific embodiment
As shown in Figure 1, 2, it is the locking bar formula anti-stealing manhole cover of an embodiment of the utility model, with the supporting use of special tool.It comprises base 6 and the cover plate 3 of being with boss 2, mainly be that edge part in cover plate 3 bottom surfaces is provided with lock bar seat 5 and by lock bar seat 5 cover plate 3 is fastened on the boss 2, be provided with two connecting through holes 1 in the middle of lock bar seat 5 and the boss 2, respectively be provided with a locking bar bolt 4 in two holes, the body of rod hypomere 13 of locking bar bolt 4 is provided with external screw thread 7, be provided with internal thread in the connecting through hole 1 of boss 2, make it stretch out boss 2 behind locking bar bolt 4 screwins, up to it external screw thread and the internal thread of boss 2 between form the stripped thread state.The surface of cover plate 3 is provided with locking bar bolt 4 mounting grooves 12, installs to fasten to make the top of locking bar bolt 4 mutually concordant with cover plate 3 later.
As shown in Figure 3, be provided with in the die 10 at said locking bar bolt 4 tops for the matching used lockhole 11 of special tool, be provided with the internal thread of being convenient to the special tool operation in the lockhole 11, be stamped dust cap on the lockhole, body of rod epimere is provided with self-locking spring 9 by fixture 8, and the height of connecting through hole 1 is consistent between the length of self-locking spring 9 and lock bar seat 5 and the boss 2.
During use, at first cover plate 3 is fastened on the boss 2,, locking bar bolt 4 is screwed in the connecting through hole 1 of lock bar seat 5 and boss 2 centres by supporting special tool.Behind locking bar bolt 4 screwins, the part that its hypomere is provided with external screw thread 7 reaches the outside of boss 2.At this moment, locking bar bolt 4 is twisted downwards and is twisted to last time and all constitute the stripped thread state under the effect of self-locking spring 9, and well lid is sealed, does not have corresponding supporting special tool, is difficult to open it.
When maintenance need be opened well lid, at first the self-locking spring on the locking bar bolt 49 is subdued or mention by special tool, then because locking bar bolt 4 hypomeres are provided with external screw thread, be provided with internal thread in the connecting through hole of boss, under the two effect, locking bar bolt 4 is extracted, opened cover plate.
Claims (7)
1, a kind of locking bar formula anti-stealing manhole cover, with the supporting use of special tool, it comprises the base (6) and the cover plate (3) of band boss (2), it is characterized in that: the edge part of said cover plate (3) bottom surface is provided with lock bar seat (5) and by lock bar seat (5) cover plate (3) is fastened on the boss (2), be provided with connecting through hole (1) in the middle of lock bar seat (5) and the boss (2), be provided with locking bar bolt (4) in the hole, the body of rod hypomere (13) of locking bar bolt (4) is provided with external screw thread (7) and makes it stretch out boss (2), is provided with internal thread in the connecting through hole (1) of boss (2).
2, locking bar formula anti-stealing manhole cover according to claim 1 is characterized in that: be provided with lockhole (11) in the die (10) at said locking bar bolt (4) top, body of rod epimere is provided with self-locking spring (9) by fixture (8).
3, locking bar formula anti-stealing manhole cover according to claim 1 is characterized in that: the surface of said cover plate (3) is provided with the mounting groove (12) of locking bar bolt (4).
4, locking bar formula anti-stealing manhole cover according to claim 1 is characterized in that: the height of connecting through hole (1) is consistent between the length of said self-locking spring (9) and lock bar seat (5) and the boss (2).
5, locking bar formula anti-stealing manhole cover according to claim 1 and 2 is characterized in that: the internal thread that is provided with the special tool operation in the said lockhole (11).
6, locking bar formula anti-stealing manhole cover according to claim 1, it is characterized in that: the quantity of said connecting through hole (1) is 2～10.
7, locking bar formula anti-stealing manhole cover according to claim 1 and 2, it is characterized in that: said lockhole is stamped dust cap on (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040480 CN2701917Y (en) | 2004-05-18 | 2004-05-18 | Lock rod type theftproof well cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040480 CN2701917Y (en) | 2004-05-18 | 2004-05-18 | Lock rod type theftproof well cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2701917Y true CN2701917Y (en) | 2005-05-25 |
Family
ID=34774327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040480 Expired - Fee Related CN2701917Y (en) | 2004-05-18 | 2004-05-18 | Lock rod type theftproof well cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2701917Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386513A (en) * | 2015-10-13 | 2016-03-09 | 成都易信达科技股份有限公司 | Well lid capable of adjusting water discharge |
-
2004
- 2004-05-18 CN CN 200420040480 patent/CN2701917Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386513A (en) * | 2015-10-13 | 2016-03-09 | 成都易信达科技股份有限公司 | Well lid capable of adjusting water discharge |
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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 |