CN2319447Y - Anti-theft manhole cover implement and its opening tool - Google Patents
Anti-theft manhole cover implement and its opening tool Download PDFInfo
- Publication number
- CN2319447Y CN2319447Y CN 98228251 CN98228251U CN2319447Y CN 2319447 Y CN2319447 Y CN 2319447Y CN 98228251 CN98228251 CN 98228251 CN 98228251 U CN98228251 U CN 98228251U CN 2319447 Y CN2319447 Y CN 2319447Y
- Authority
- CN
- China
- Prior art keywords
- well lid
- shell
- boss
- manhole cover
- bolt head
- 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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Abstract
The utility model provides an anti-theft manhole cover and a manhole mouth ring and thereof opening tool. An anti-theft lock control device which is composed of a housing, a round nut, a stop washer, an inner core, a cam, a bolt head, a pin and a key boss, and the manhole cover are connected to integration. The bolt head penetrates through a bolt hole arranged on the boss arranged at the lower end of the manhole cover, and then is clamped in a hole of the bolt head of the manhole mouth ring. The manhole cover and the manhole mouth ring are fixed together. When the manhole cover is opened, the manhole cover and the manhole mouth ring are separated only by using the opening tool which is composed of a key rod and a pry rod, and then the manhole cover can be opened. The utility model has the advantages of simple structure, convenient operation, and the integration of strong interchange ability and anti-theft performance. The loss of the government property can be effectively avoided, and the safety of the passers by and vehicles can be guaranteed.
Description
The utility model relates to a kind of well lid and opener thereof of underground pipeline maintenance well, relates in particular to a kind of well lid that can lock and opener thereof.
Traditional well lid is the well lid of cast iron type, and well lid directly covers on the well head circle, and well lid and well head circle are the design of separate type, and this well lid plate easy stolen robbery walk, thereby brings danger for traffic and pedestrian; Improved well lid commonly used now is to add a connection piece between well lid and well head circle, and as pivot pin, iron chains etc., but its theftproof performance is still very low, and the burglar can destroy connector easily and well lid is stolen; Patent Office of the People's Republic of China discloses a kind of anti-stealing manhole cover with authorization notification number 2197390, it is to utilize two pairs fixedly kayser and livelock are fixed in well lid the bottom surface of well head circle convex edge, must utilize its special-purpose opener just can open livelock, thereby mobile well lid, though it has strengthened the theftproof performance of well lid to a certain extent, but still have complex structure, produce, use inconvenient, shortcoming such as interchangeability is not strong.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art and a kind of simple in structure, easy to use, theftproof performance is good and interchangeability is strong well lid and opener thereof is provided.
The purpose of this utility model is achieved in that
A kind of anti-stealing manhole cover device, formed by well head circle and well lid, on the well head circle, have a pair of bolt head hole symmetrically, have step-like countersunk at the center of well lid, bottom end face at well lid is provided with boss symmetrically, boss is provided with keyhole, in addition, also by shell, round nut, stop washer, inner core, cam, the bolt head, pin, the lock control devices that the key boss is formed is formed, wherein be connected in the countersunk of well lid the shell revolving type, the upper surface of its upper surface and well lid is a plane, the bottom end face of well lid is stretched out in its bottom that has gong line pin thread, stop washer and round nut be socketed on shell the outside and with the bottom surface crimping mutually of well lid, in outer casing bottom, be provided with an inner core, the key boss socket that is positioned at shell also can rotate to it thereon, lower end at shell has chute hole symmetrically, cam is socketed on the lower end of shell, and the chute hole and the key boss that pass on the shell by pin fuse, cam is a symmetric shape, both sides respectively are provided with smooth circular arc and stop ledge, two bolt heads pass behind the keyhole on the boss of well lid and cam crimping mutually, be provided with the stage clip on the bolt head of being socketed on that is socketed on packing rings engaging on the bolt head by two at the other end of bolt head, wherein a packing ring be fixed in the bolt head on backing pin crimping mutually, boss crimping on another packing ring and the well lid, bolt head hole on the well head circle is corresponding mutually with the keyhole on the well lid, the bolt head that is sticked in the keyhole is also corresponding with the bolt head hole on the well head circle, also is provided with groove at the inner surface of shell.
Wherein, the shape of key boss is square, triangle or pentagon;
Wherein, be fixed with baffle plate in the bottom of well lid;
Wherein, also be connected with the cone rubber plug that a size is complementary with it at the upper opening place of the shell of lock control devices.
The "T"-shaped bar that special opening instrument of the present utility model is made up of key bar and ripping bar, ripping bar passes the top of key bar and fixedlys connected with it, wherein an end of ripping bar is set to taper, the boss that groove in the bottom of key bar is provided with shell with lock control devices is complementary, the bottom of key bar are provided with the groove that the key boss with lock control devices is complementary.
The utility model compared with prior art has following advantage:
At first, because be provided with the lock control devices of being made up of shell, round nut, stop washer, inner core, cam, bolt head, key boss, so structure is very simple, and interchangeability is strong between the component, produces very convenient; In addition, lock control devices and well lid are fused dexterously, must use the special opening instrument to stretch in the lock shell and rotate and to open and close this anti-stealing manhole cover device, thereby strengthened the theftproof performance of well lid widely, avoided effectively well lid stolen with and the generation of the various dangerous things brought of stolen back, simultaneously, easy to operate quick; Be provided with the cone rubber plug in addition, can prevent that impurity from entering in the lock shell, thereby increased the application life of lock control devices.
Below in conjunction with drawings and Examples the utility model is described in further detail:
Fig. 1 is the elevational cross-sectional view of lock control devices of the present utility model;
Fig. 2 is the structural representation of cam of the present utility model and bolt head;
Fig. 3 is the vertical view of the shell of lock control devices of the present utility model;
Fig. 4 is the elevational cross-sectional view of well lid of the present utility model and well head circle;
Fig. 5 is the boss of well lid of the present utility model and the structural representation of keyhole;
Fig. 6 is an opener structure chart of the present utility model;
Fig. 7 is the upward view of the key bar of opener of the present utility model.
A kind of anti-stealing manhole cover device, formed by well head circle 14 and well lid 15, on well head circle 14, have a pair of bolt head hole 17 symmetrically, have step-like countersunk 18 at the center of well lid 15, bottom end face at well lid 15 is provided with boss 19 symmetrically, boss 19 is provided with keyhole 20, in addition, also by shell 1, round nut 2, stop washer 3, inner core 4, cam 5, bolt head 7, pin 6, the lock control devices that key boss 21 is formed is formed, wherein be connected in the countersunk 18 of well lid 15 shell 1 revolving type, the upper surface of its upper surface and well lid 15 is a plane, the bottom end face of well lid 15 is stretched out in its bottom that has gong line pin thread, stop washer 3 and round nut 2 be socketed on shell 1 the outside and with the bottom surface crimping mutually of well lid 15, in shell 1 bottom, be provided with an inner core 4, key boss 21 sockets that are positioned at shell 1 also can rotate to it thereon, lower end at shell 1 has chute hole 22 symmetrically, cam 5 is socketed on the lower end of shell 1, and the chute hole 22 that passes on the shell 1 by pin 6 fuses with key boss 21, cam 5 is a symmetric shape, both sides respectively are provided with smooth circular arc and stop ledge, two bolt heads 7 pass keyhole 20 back and cam 5 crimping mutually on the boss 19 of well lid 15, be provided with the stage clip 9 on the bolt head 7 of being socketed on that is socketed on packing rings 8 engagings on the bolt head 7 by two at the other end of bolt head 7, wherein a packing ring 8 be fixed in bolt head 7 on backing pin 10 crimping mutually, boss 19 crimping on another packing ring 8 and the well lid 15, keyhole 20 on bolt head hole 17 on the well head circle 14 and the well lid 15 is corresponding mutually, the bolt head 7 that is sticked in the keyhole 20 is also corresponding with the inspection hole 17 on the well head circle 14, also is provided with groove 23 at the inner surface of shell 1.
Wherein the shape of key boss 21 is squares.
Wherein be fixed with baffle plate 16 in the bottom of well lid 15.
Wherein also be connected with the cone rubber plug that a size is complementary with it at the upper opening place of the shell 1 of lock control devices.
The "T"-shaped bar that special opening instrument of the present utility model is made up of key bar 12 and ripping bar 13, ripping bar 13 passes the top of key bar 12 and fixedlys connected with it, wherein an end of ripping bar 13 is set to taper, the boss 24 that groove 23 in the bottom of key bar 12 is provided with shell 1 with lock control devices is complementary, the bottom of key bar 12 are provided with the square indentations 25 that the key boss 21 with lock control devices is complementary.
Working method of the present utility model is: at first utilize opener ripping bar 13 pry open cone rubber plug 11, then key bar 12 is inserted in the shell 1 of lock control devices, groove 25 on the key bar 12 is engaged with key boss 21, then by counterclockwise rotarily opening instrument, just can drive key boss 21 and the rotation synchronously of cam 5 dos, because the effect of the arc surface of cam 5, bolt head 7 is outwards ejected, bolt head 7 is outwards moved in the keyhole 20 of well lid 15 and enter in the bolt head hole 17 of well head circle 14, thereby locking well lid 15, only need reverse operating to get final product when in contrast, opening well lid 15.
Claims (5)
1, a kind of anti-stealing manhole cover device, formed by well head circle (14) and well lid (15), on well head circle (14), have a pair of bolt head hole (17) symmetrically, have step-like countersunk (18) at the center of well lid (15), bottom end face at well lid (15) is provided with boss (19) symmetrically, boss (19) is provided with keyhole (20), it is characterized in that also by shell (1), round nut (2), stop washer (3), inner core (4), cam (5), bolt head (7), pin (6), the lock control devices that key boss (21) is formed is formed, wherein be connected in the countersunk (18) of well lid (15) shell (1) revolving type, the upper surface of its upper surface and well lid (15) is a plane, the bottom end face of well lid (15) is stretched out in its bottom that has gong line pin thread, stop washer (3) and round nut (2) be socketed on shell (1) the outside and with the bottom surface crimping mutually of well lid (15), in shell (1) bottom, be provided with an inner core (4), key boss (21) socket that is positioned at shell (1) also can rotate to it thereon, have chute hole (22) symmetrically in the lower end of shell (1), cam (5) is socketed on the lower end of shell (1), and the chute hole (22) that passes on the shell (1) by pin (6) fuses with key boss (21), cam (5) is a symmetric shape, both sides respectively are provided with smooth circular arc and stop ledge, two bolt heads (7) pass keyhole (20) back and cam (5) crimping mutually on the boss (19) of well lid (15), be provided with the stage clip (9) on the bolt head (7) of being socketed on of packing ring (8) engaging that is socketed on by two on the bolt head (7) at the other end of inspection head (7), wherein a packing ring (8) be fixed in bolt head (7) on backing pin (10) crimping mutually, boss (19) crimping on another packing ring (8) and the well lid (15), verify (20) on bolt head hole (17) on the well head circle (14) and the well lid (15) is corresponding mutually, the bolt head (7) that is sticked in the keyhole (20) is also corresponding with the bolt head hole (17) on the well head circle (14), also is provided with groove (23) at the inner surface of shell (1).
2, anti-stealing manhole cover device according to claim 1, the shape that it is characterized in that key boss (21) are square, triangle or pentagon.
3, anti-stealing manhole cover device according to claim 1 is characterized in that being fixed with baffle plate (16) in the bottom of well lid (15).
4, anti-stealing manhole cover device according to claim 1 is characterized in that the upper opening place of the shell (1) at lock control devices also is connected with the cone rubber plug that a size is complementary with it.
5, a kind of opener that is exclusively used in aforesaid right requirement 1 described anti-stealing manhole cover device, the "T"-shaped bar of being formed by key bar (12) and ripping bar (13), ripping bar (13) passes the top of key bar (12) and fixedlys connected with it, wherein an end of ripping bar (13) is set to taper, the boss (24) that groove (23) in the bottom of key bar (12) is provided with shell (1) with lock control devices is complementary, the bottom of key bar (12) are provided with the groove (25) that the key boss (21) with lock control devices is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228251 CN2319447Y (en) | 1998-02-06 | 1998-02-06 | Anti-theft manhole cover implement and its opening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228251 CN2319447Y (en) | 1998-02-06 | 1998-02-06 | Anti-theft manhole cover implement and its opening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319447Y true CN2319447Y (en) | 1999-05-19 |
Family
ID=33978410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98228251 Expired - Fee Related CN2319447Y (en) | 1998-02-06 | 1998-02-06 | Anti-theft manhole cover implement and its opening tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319447Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775697A (en) * | 2015-04-13 | 2015-07-15 | 上海吉信金属制品有限公司 | Spring tri-proof locking device for well lid and unlocking tool for spring tri-proof locking device |
| CN106968276A (en) * | 2017-04-26 | 2017-07-21 | 浙江瑞森路政设施有限公司 | Multifunctional well cover |
| CN107313462A (en) * | 2017-09-02 | 2017-11-03 | 孟祖钢 | A kind of new city road cellar well lid arrangement |
| CN107326938A (en) * | 2017-09-02 | 2017-11-07 | 孟祖钢 | A kind of city road inspection shaft lid arrangement |
| CN107351127A (en) * | 2017-09-02 | 2017-11-17 | 黄贤水 | A kind of high-end intelligent robot equipment |
| CN107503378A (en) * | 2017-09-02 | 2017-12-22 | 孟祖钢 | A kind of modified city road inspection shaft lid arrangement |
| CN107498585A (en) * | 2017-09-02 | 2017-12-22 | 黄贤水 | A kind of high-end intelligent robot equipment |
| CN107511850A (en) * | 2017-09-02 | 2017-12-26 | 黄贤水 | A kind of modified form intelligent robot equipment |
-
1998
- 1998-02-06 CN CN 98228251 patent/CN2319447Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775697A (en) * | 2015-04-13 | 2015-07-15 | 上海吉信金属制品有限公司 | Spring tri-proof locking device for well lid and unlocking tool for spring tri-proof locking device |
| CN106968276A (en) * | 2017-04-26 | 2017-07-21 | 浙江瑞森路政设施有限公司 | Multifunctional well cover |
| CN107313462A (en) * | 2017-09-02 | 2017-11-03 | 孟祖钢 | A kind of new city road cellar well lid arrangement |
| CN107326938A (en) * | 2017-09-02 | 2017-11-07 | 孟祖钢 | A kind of city road inspection shaft lid arrangement |
| CN107351127A (en) * | 2017-09-02 | 2017-11-17 | 黄贤水 | A kind of high-end intelligent robot equipment |
| CN107503378A (en) * | 2017-09-02 | 2017-12-22 | 孟祖钢 | A kind of modified city road inspection shaft lid arrangement |
| CN107498585A (en) * | 2017-09-02 | 2017-12-22 | 黄贤水 | A kind of high-end intelligent robot equipment |
| CN107511850A (en) * | 2017-09-02 | 2017-12-26 | 黄贤水 | A kind of modified form intelligent robot equipment |
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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 |