CN2612767Y - Cipher lock for well cover - Google Patents

Abstract

The utility model relates to a well cover used for communication cable duct and power cable duct, in particular to a modified cipher lock of the well cover, which comprises a cipher case body, a cipher lock bar and a plurality of cipher ball units, wherein cipher plates which correspond to the cipher balls are arranged on the outer surface of the well cover, the cipher ball units and the cipher plates are arranged at least two rows, every row has at least two cipher ball units and the cipher plates, the two sides of cipher lock bar, which correspond to the cipher ball unit, are provided with arc grooves; as the arrangement structure of the cipher balls and the cipher plates are charged, the encryption property of the cipher lock is improved greatly, and the unblocking probability is reduced.

Description

A kind of well lid coded lock

Technical field

The utility model relates to a kind of well lid for communication cable pipeline, the use of power cable pipeline, specifically, relates to the coded lock that this kind well lid is used.

Background technology

Present communication cable pipeline, power cable pipeline are laid on underground more, keep at a certain distance away well lid is housed, and the easy access attendant enters the down-hole.If there is not safeguard measure, well lid very easily is stolen, and the cable in the well is destroyed and usurp more and to bring great loss can for legal user.The utility model patent that Chinese patent 00227037.4, name are called " people's well is with being with the coded lock inner cap " discloses the coded lock that a kind of well lid is used, with reference to the structural representation of Fig. 1, password lock collar shown in Figure 2 and password pearl unit.This is locked in a plurality of password pearls is housed in the box body, every password pearl is connected with well lid by a coded shaft, the combination disk of coded shaft end is positioned at the well lid external surface, rotatable adjusting, every password pearl bottom has a plurality of grooves, be contained in finger on the coded shaft and can fill in and be put in arbitrary groove,, realize the random replacing of password combination by the different cooperations of finger with groove.After this coded lock was housed, only under situation about knowing the cipher, well lid just can be unlocked, and had guaranteed the safety of facility in the pipeline to a certain extent.But, if password is lost or by the situation that other people steal, as long as password is arranged, anyone can open well lid easily, and the well inner cable is destroyed or usurp circuit, brings loss for legal user.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of well lid coded lock that has improved.

The technical scheme that the utility model adopted is:

A kind of well lid coded lock, comprise coded lock locking bar in password box body, the box body and a plurality of password pearls unit etc., on the combination disk of corresponding each the password pearl unit of well lid external surface cue mark is arranged, described a plurality of password pearl unit and corresponding combination disk thereof are arranged in two row at least, whenever walk to rare two, described coded lock locking bar both sides and password pearl corresponding position have the arc groove that adapts with the password pearl.

Described combination disk inner surface has concave arc, and well lid external surface and concave arc corresponding position have the hole, and spring is housed in the hole, and steel ball is arranged on the spring.

The beneficial effects of the utility model are: with a plurality of password pearl unit in the coded lock and corresponding combination disk is arranged in two row or more than two row, each walks to rare two, even password is stolen like this, the stealer does not know the ordering of password is from which combination disk yet, opening coded lock need be starting point with each combination disk respectively, the repeatedly just possible release of experiment, and have only the attendant of specialty under the situation of knowing the password ordering, could once to open, such arrangement architecture improves the encryption performance of whole coded lock greatly, and the probability that is unlocked then reduces greatly; In addition, the elastic steel ball of combination disk bottom sends sound in the time of can making the password integument rotate to unlock position, and produces different feels, prevents to extract the coded lock locking bar out when the password pearl from not forwarding to fully and damages component.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the plan view of coded lock in the prior art;

Fig. 2 is the structure chart of password pearl unit in the prior art;

Fig. 3 is the structural representation of the utility model embodiment;

Fig. 4 is the stereogram of password pearl in the coded lock;

Fig. 5 is the plan view of the coded lock of the utility model embodiment at locking-in state;

Fig. 6 is the plan view of the coded lock of the utility model embodiment in opening;

Fig. 7 is the user mode figure of the utility model embodiment on well lid.

The specific embodiment

With reference to Fig. 1, Fig. 2, password pearl unit of the prior art and corresponding combination disk thereof adopt single arrangement mode, the one-sided corresponding arc groove that has with the password pearl of coded lock locking bar.When password did not transfer to correct value, password pearl circular arc limit fell into the arc groove of coded lock locking bar, and locking bar can not be pulled out, and then coded lock can not be opened; When password was correct, the straight flange of each password pearl was all concordant with the coded lock locking bar, and this hour locking lever can be pulled out, and promptly coded lock is opened.If password is lost or is stolen, then only need according to password examination to transfer twice---from left to right or from right to left, must once lock can be opened, though then in the coded lock password pearl have what, it all is 50% that the youngster of release leads.

With reference to Fig. 3, the structural representation of the utility model embodiment.Well lid of the present utility model comprises coded lock locking bar 4 and a plurality of password pearls unit 2 in password box body 1, the box body with coded lock, each password pearl unit is by the support spring 23 of password pearl 22, bottom, coded shaft 24, latch 26, form with the combination disk 21 and the coded shaft stop nut 25 of coded shaft 24 one, numeral is arranged as cue mark on the combination disk 21, have a plurality of grooves 221 on the cylinder on password pearl 22 tops, with reference to Fig. 4, latch 26 passes coded shaft 24 and snaps in arbitrary groove 221, and latch 26 is put into the variation that different groove 221 can be realized password combination.

With reference to Fig. 5, Fig. 6, the pinning of the utility model coded lock and opening figure.Coded lock is made up of six password pearl unit in this embodiment, and these six password pearl unit and corresponding coded lock lock collar thereof are arranged in two row, and every row has three, and coded lock locking bar 4 both sides and password pearl 22 corresponding positions have six arc grooves 41.Identical with coded lock of the prior art, have only when password transfers to correct value, thereby coded lock locking bar 4 just can be pulled and unblank, but the arrangement mode of password pearl unit of the present utility model and corresponding combination disk thereof changes the also corresponding variation to some extent of the structure of whole coded lock to some extent.This arrangement mode can make stealer's release probability reduce greatly, with the coded lock in the present embodiment is example: wanting release must be original position with each combination disk respectively, clockwise and counterclockwise both direction all tries to transfer once, six combination disk need be tried to transfer 2 * 6=12 time at most, lock could be untied, probability is 1/12.The encryption performance of whole coded lock improves greatly, more can effectively protect legal user's interests.

When a plurality of password pearl unit and corresponding combination disk thereof are arranged in two row when above, the also corresponding increase of the quantity of coded lock locking bar, and a plurality of password locking bar need interconnect and realizes interlock.

In addition, since the unlatching of coded lock need on each combination disk 21 numeral all with well lid on the mark of unblanking align, if see by eyes fully and be difficult to guarantee that numeral and mark align fully, just only can pull out when parallel with the straight flange of password pearl 22 is complete in order to make coded lock locking bar 4, prevent from when password pearl 22 does not forward to fully, to extract out locking bar 4 and damage component, can concave arc 211 be set at combination disk 21 inner surfaces, as shown in Figure 3, in well lid external surface and concave arc 211 corresponding position perforates, hole built-in spring 5 and steel ball 6, like this, the elastic steel ball of combination disk bottom sends sound in the time of can making the password integument rotate to unlock position, and produce different feels, thereby the rotation of password pearl 22 is put in place fully.

With reference to Fig. 7, coded lock of the present utility model coded lock locking bar 4 is in use realized and connecting rod 9 interlocks by connecting axle 7.Connecting axle 7 one ends are fixedlyed connected with connecting rod 9, and the other end penetrates in the axis hole of coded lock locking bar 4 afterbodys, and when connecting rod 9 rotated, connecting axle 7 can drive 4 transverse movements of coded lock locking bar.When needs are opened well lid 8, the instruction coded lock is to correct value earlier, rotating spindle then, clutch 10 on the main shaft is in closure state at this moment, its rotation drives coupled connecting rod 9 and rotates, and coded lock locking bar 4 is pulled out from lock, and connecting rod 9 drives lock 11 withdrawals simultaneously, thereby make lock 11 leave the lockhole of well inwall, well lid can be opened.When coded lock is not opened, open well lid as force the rotating spindle attempt by external force, then clutch is in released state, can not drivening rod 9 and lock 11 withdrawals, well lid can't be opened.

Claims (3)

1. well lid coded lock, comprise coded lock locking bar (4) in password box body (1), the box body and a plurality of password pearls unit (2) etc., on the combination disk (21) of corresponding each the password pearl unit of well lid (3) external surface cue mark is arranged, it is characterized in that described a plurality of password pearls unit (2) and corresponding combination disk (21) thereof are arranged in two row at least, whenever walk to rare two, described coded lock locking bar (4) both sides and password pearl (22) corresponding position have the arc groove (41) that adapts with password pearl (22).

2. a kind of well lid coded lock according to claim 1 is characterized in that described a plurality of password pearls unit (2) and corresponding combination disk (21) thereof are arranged in two row, three of every row.

3. a kind of well lid coded lock according to claim 1 and 2, it is characterized in that described combination disk (21) inner surface has concave arc (211), well lid external surface and concave arc (211) corresponding position has hole (41), and spring (5) is housed in the hole, and steel ball (6) is arranged on the spring.

Images