CN2893088Y - Multipoint manhole cover antitheft lock - Google Patents

Multipoint manhole cover antitheft lock Download PDF

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Publication number
CN2893088Y
CN2893088Y CN 200620023711 CN200620023711U CN2893088Y CN 2893088 Y CN2893088 Y CN 2893088Y CN 200620023711 CN200620023711 CN 200620023711 CN 200620023711 U CN200620023711 U CN 200620023711U CN 2893088 Y CN2893088 Y CN 2893088Y
Authority
CN
China
Prior art keywords
lock
key
lock core
core shaft
well cover
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
Application number
CN 200620023711
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Chinese (zh)
Inventor
张卓一
Original Assignee
张卓一
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 张卓一 filed Critical 张卓一
Priority to CN 200620023711 priority Critical patent/CN2893088Y/en
Application granted granted Critical
Publication of CN2893088Y publication Critical patent/CN2893088Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a multi-point drain well cover burglar-proof lock which comprises a lock body and a key. Wherein, the gear wheel on the lock core of the lock and the meshed bilateral rack bolt are respectively positioned in the oil storage shell and the positioning sheath which is communicated with the oil storage shell. At least one positioning hinge slot on the lock core axle is matched with a key. The key is provided with a though opening on the cylinder which is inserted by a spring plate with a spring wrench that is matched with the positioning hinge slot on the lock core. The utility has the advantages of burglar-alarm and anti-corrosion, and can be arranged in any drain well cover.

Description

The multipoint mode anti-theft lock for inspection well cover
Technical field
The utility model relates to a kind of special lockset, the multipoint mode anti-theft lock for inspection well cover of a kind of special use specifically.
Background technology
As everyone knows, as a significant problem that influences urban road safety, promptly be the stolen of inspection shaft lid.It brings a small piece of land surrounded by water how inconvenient not only for people's trip, affects city look and feel, and also serious danger is being assisted people's life and caused the generation of traffic accident.In order to stop the generation of this class phenomenon, this field discloses the technology of this class problem of many solutions, and as Chinese utility model patent, its publication number is CN2412975Y, discloses anti-theft lock for inspection well cover.It mainly adopt lock core shaft and on the gear that has, unidirectionally with it nibble the lock core body that the bar engagement is formed, install in the lock housing.According to being to be applicable to the inspection shaft lid that has hinge in the above-mentioned technology,, be feasible therefore by this its other end of theftproof lock one-way locking.In addition, the lock core shaft of this technology is an oblate body.Thereby being easy to utilize pipe to change system into key like this opens theftproof lock and steals well lid; In addition, this technology has also adopted gear, rackwork, although taked the sealing measure to install in the lock housing, because of exporting position, dead bolt and its lock housing of its section of rack contact, can produce corrosion, for a long time the problem that well lid is not opened can appear in the past, based on above-mentioned 2 points, in actual applications, the theftproof of its key, the corrosion of dead bolt need further improve, improves and improve.
The utility model content
The purpose of this utility model is for addressing the above problem, and a kind of multipoint mode anti-theft lock for inspection well cover with good theftproof and anti-corrosion performance is provided.
The realization the technical solution of the utility model is: comprise lock body and key, gear in the lock core shaft of wherein said formation lock body and the two-way tooth bar dead bolt that is meshed are installed in an oil storage shell respectively and are distributed in both sides and the positioning sleeve that it is communicated with, in order to prevent the wheel and rack dead bolt, the corrosion of tooth bar dead bolt and stop collar junction; This lock core shaft's exit axially have at least one the location locked groove, match with a key that can insert; Described key has the circle cover of a band handle, and a through hole is arranged on it, and this through hole is fixed on circle and puts and have the claw flexure strip that can insert through hole and cooperate with one.When the key by this structure inserts in the lock core shaft, utilize flexure strip on the key to cooperate.When the key by this structure inserts in the lock core shaft, utilization elastic card claw on the key enters into the location locked groove in the lock core shaft, key control lock mandrel and cog and forward or backwards rotation can be controlled fore shaft that the tooth bar dead bolt inserts well lid inside relatively and achieve and open or close.In addition, this lock core shaft is a cylinder, and is installed in the bottom of well lid through hole again, can't learn the location locked groove of hiding in the lock core shaft, therefore, has also just controlled the imitated of key, thereby has reached antitheft purpose.
In this is novel, establish an annular spring in the annular ditch that radially has of described key cylinder body, this annular spring passes the through hole of elastic card claw correspondence.This annular spring effect is in order to strengthen the snap-fit of elastic card claw and lock core shaft location locked groove.
Multipoint mode anti-theft lock for inspection well cover of the present utility model, because of adopting the engagement of lock core shaft's gear and two-way tooth bar dead bolt, the locking of the multipoint mode of formation is suitable for the use that various inspection shafts cover; In addition, this theftproof lock has taken into full account the problem of corrosion; In addition, the problem of crux is the key with a theftproof performance, has effectively avoided imitated, thereby has fundamentally solved the antitheft of well lid, has stopped stolenly, has guaranteed traffic safety.
Description of drawings
Fig. 1 is this novel overall structure schematic diagram.
Fig. 2 is another enforcement structural representation of Fig. 1 key.
Fig. 3 is the schematic diagram that key and lock core shaft are used.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, to this novel being described in further detail.
By multipoint mode anti-theft lock for inspection well cover shown in Figure 1, comprise lock body and key.The gear 8 that this lock body has a lock core shaft 9 and is provided with on it.Have location locked groove 10 vertically on lock core shaft 9 tops.Described gear 8 is installed in order in the antirust oil storage shell 7.Described oil storage shell 7 is fastened on the location-plate 3, and this location-plate 3 is lifted on the lower position of the inspection shaft lid 1 that has lockhole 11 by screw rod 2.Two side ends at oil storage shell 7 is provided with coupled logical positioning sleeve 5 and 5 ', two-way tooth bar dead bolt 6 and 6 ' of being equipped with in its two positioning sleeve 5 and 5 '.Described tooth bar dead bolt 6 and 6 ' are respectively by section of rack on it and the engagement of lock core shaft's gear 8 synchronous bidirectionals.In order to strengthen the intensity of positioning sleeve 5 and 5 ', and positioning sleeve 5 and 5 ' are connected on the location-plate 3 by screw rod 4.
In above-mentioned, also relate to and be used to open or the uncap key of theftproof lock of locking.Have a cylinder at this key 14 in novel, have a through hole 12 on this cylinder, these through hole 12 positions are provided with a flexure strip 15 that has an elastic card claw 13.Described elastic card claw 13 can free in and out in through hole 12.
Fig. 2 provides another example structure of key.It is on the architecture basics of Fig. 1, has made respective change.Promptly adopt the simplified flexure strip 15 that upward is provided with of circle of key 14 equally and gone up elastic card claw 13, make elastic card claw 13 be positioned at through hole 12, the root of this elastic card claw 13 has a through hole 16, and an open annular spring 17 is housed within it, is installed in radially having in the annular ditch of key cylinder body.Can strengthen the centripetal force that elastic card claw 13 resets like this.Its effect is when making elastic card claw 13 and location locked groove in the lock core shaft cooperating, and prevents that elastic card claw 13 from radially sliding.
Fig. 3 provides the user mode that key cooperates with lock core shaft.When key 14 inserts the end of lock core shaft 9, and utilize axle head to act on elastic card claw 13 its flexure strip 15 is outwards moved, key 14 is inserted into location locked groove 10 positions in the lock core shaft 9 smoothly, at this moment, under flexure strip 15 effects, elastic card claw 13 is resetted, and be clamped in the location locked groove 10 in the lock core shaft 9, rotate by up time or inverse time direction and can finish opening or locking of theftproof lock.

Claims (2)

1, a kind of multipoint mode anti-theft lock for inspection well cover, comprise lock body and key, the two-way tooth bar dead bolt (6 and 6) that it is characterized in that gear (8) and described engagement in the lock core shaft (9) of described lock body is installed in oil storage shell (7) respectively and is distributed in the positioning sleeve (5 and 5) that both sides are communicated with it; Described lock core shaft (9) exit axially have at least one the location locked groove (10); Have a through hole (12) on the cylinder that described key (14) has, cooperate with the flexure strip that has elastic card claw (13) (15) insertion in it.
2, by the described multipoint mode anti-theft lock for inspection well cover of claim 1, it is characterized in that being provided with an annular spring (17) in the annular ditch that radially has of described key (14) cylinder, this annular spring (17) passes elastic card claw (13) and goes up corresponding through hole (16).
CN 200620023711 2006-03-09 2006-03-09 Multipoint manhole cover antitheft lock Expired - Fee Related CN2893088Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620023711 CN2893088Y (en) 2006-03-09 2006-03-09 Multipoint manhole cover antitheft lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620023711 CN2893088Y (en) 2006-03-09 2006-03-09 Multipoint manhole cover antitheft lock

Publications (1)

Publication Number Publication Date
CN2893088Y true CN2893088Y (en) 2007-04-25

Family

ID=38061254

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620023711 Expired - Fee Related CN2893088Y (en) 2006-03-09 2006-03-09 Multipoint manhole cover antitheft lock

Country Status (1)

Country Link
CN (1) CN2893088Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014202099A1 (en) * 2013-06-21 2014-12-24 Romero Fernández Enriquillo Manuel Security system for manhole covers
WO2015173630A1 (en) * 2014-05-12 2015-11-19 Lozano Lopez Gustavo Anti-theft security system for a manhole cover, including a mechanism with a vertical rotation shaft
CN107905053A (en) * 2017-12-18 2018-04-13 成都隶盈科技有限公司 A kind of town road structure at inspection shaft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014202099A1 (en) * 2013-06-21 2014-12-24 Romero Fernández Enriquillo Manuel Security system for manhole covers
WO2015173630A1 (en) * 2014-05-12 2015-11-19 Lozano Lopez Gustavo Anti-theft security system for a manhole cover, including a mechanism with a vertical rotation shaft
CN107905053A (en) * 2017-12-18 2018-04-13 成都隶盈科技有限公司 A kind of town road structure at inspection shaft
CN107905053B (en) * 2017-12-18 2020-07-28 周燕玲 Town road structure of inspection shaft department

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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