CN2570326Y - Cipher anti-theft well cover - Google Patents

Abstract

The utility model discloses a cipher anti-theft manhole cover which is provided with a plurality of bar-shaped lock holes. A locking boss is respectively arranged on cover rings corresponding to the left end and the right end of each locking hole; a lock rod is arranged in the locking hole, and the top end of the locking rod is fixedly connected with a locking tooth. Corresponding to the locking rod, the lock tooth surface of the lock tooth is longer and the lock tooth surface on the other side is shorter or the lock tooth surface is not arranged; the locking rod is shifted toward the direction with the longer lock tooth surface, and the lock tooth can be clamped on the lower end of the locking boss to reach the purpose of locking the manhole cover. The locking rod is shifted toward the opposite direction, the purpose of opening the manhole cover is reached. After the cipher anti-theft manhole cover having the structure is lost, the cover ring does not need to be changed, only the manhole cover is changed for a new manhole cover, and then the opening cipher can be varied to obtain the theft protection purpose.

Description

The cipher anti theft well lid

The utility model relates to a kind of cipher anti theft well lid.

At present, in some cities of China, underground casting iron well lid often occurs, the well grate is lost phenomenon, not only cause the loss of national wealth, and might injure passerby, so must solve the manhole cover anti-theft problem.Number of patent application is to disclose a kind of " cipher anti theft well lid " in the manual of 02205563.0 Chinese utility model patent, its structure is as follows: well lid is provided with the lockhole more than 3 or 3, be provided with the locking boss with the left end or the corresponding decorative cover of right end position of lockhole, on the well lid medial surface in that a side far away is provided with and stops muscle from the well lid edge near each lockhole, stop that muscle is connected as a single entity, when well lid is built on decorative cover, stop that the bottom surface plane of living in of muscle should be equal or a little less than locking boss bottom surface plane of living in, be provided with locking bar in the lockhole, the locking bar top is provided with and may be stuck in the lock tooth that stops muscle lower end and locking boss lower end, stir locking bar, locking bar can drive lock tooth move left and right, locking or unlatching well lid, when well lid and decorative cover are shaped as circle, be provided with positioning boss at the well lid medial surface, corresponding decorative cover is provided with locating slot, when well lid and decorative cover are shaped as other shape except that circular, then positioning boss and locating slot need not be set.The cipher anti theft well lid of this kind structure is at the different lockholes on the same set of well lid, locking boss on the decorative cover may be arranged on the left end of lockhole, also may be arranged on the right-hand member of lockhole, so the locking bar in the lockhole that has determined to have is to stir to right-hand member to reach purpose of opening, locking bar in the lockhole that has is to stir to left end to reach purpose of opening, only known stirring direction and could opening well lid of all locking bars on the same set of well lid, otherwise be difficult to open well lid, so just reached the purpose of utilizing coded lock locking well lid.The position of locking boss on decorative cover of this cipher anti theft well lid fixed, decorative cover has determined the unlatching password, if the unlatching password of a certain cover well lid in the use on the road is by known to the robber, after well lid is lost, even if change new well lid, because decorative cover is fixed on the road and does not change, do not change so open password, be easy to cause well lid stolen once more, want to prevent that well lid is stolen once more, decorative cover must be dug from road, fully the newer well lid of transducer set.

The purpose of this utility model is to overcome the defective of above-mentioned prior art, after well lid is lost, decorative cover need not be changed, and need only more renew well lid, can reach antitheft purpose.

For achieving the above object, cipher anti theft well lid of the present utility model is by well lid, formations such as decorative cover, well lid is provided with the strip lockhole more than 3 or 3, with the corresponding locking boss that on decorative cover, all is provided with of the left end of lockhole with right end position, locking bar is housed in the lockhole, this locking bar is a flat bar in the contact portion of lockhole inwall, a locking bar axially stop block is arranged on this cipher anti theft well lid, the locking bar top is fixedly connected with the lock tooth, this relative locking bar of lock tooth lock flank of tooth on one side is longer, the lock flank of tooth of another side is lacked or is not had, stir locking bar, locking bar can drive lock tooth move left and right, locking bar is stirred to the direction that the long lock flank of tooth is arranged, the lock tooth may be stuck in locking boss lower end, reach locking well lid purpose, locking bar is stirred to opposite direction, reach and open the well lid purpose, when well lid and decorative cover are shaped as circle, be provided with positioning boss at the well lid medial surface, corresponding decorative cover is provided with locating slot, when well lid and decorative cover are shaped as other shape of removing the circle, then positioning boss and locating slot need not be set.

The locking bar axially stop block of above-mentioned cipher anti theft well lid is at the muscle that stops near the side setting far away from the well lid edge of each lockhole on the well lid medial surface, this stops that muscle is connected as a single entity, when well lid is built on decorative cover, stop that the bottom surface plane of living in of muscle should be equal or a little less than locking boss bottom surface plane of living in, the lock tooth is stuck in and stops the muscle lower end.

The locking bar axially stop block of above-mentioned cipher anti theft well lid is a stop collar, and this stop collar is contained on the locking bar, is between well lid medial surface and the lock tooth.

The locking bar axially stop block of above-mentioned cipher anti theft well lid is a spacing collar, and this spacing collar is contained on the locking bar, presses close to the well lid medial surface.

The fixedly connected form of the lock tooth of above-mentioned cipher anti theft well lid on locking bar is dismountable fixedly connected.

Cipher anti theft well lid of the present utility model is compared with the cipher anti theft well lid of prior art has following advantage: the cipher anti theft well lid of this kind structure is at the left end and the corresponding locking boss that all is provided with of right end position of each lockhole on the decorative cover and on the well lid, the decorative cover of every cover well lid all is the same, the locking bar top is connected with the lock tooth, this relative locking bar of lock tooth lock flank of tooth on one side is longer, the lock flank of tooth of another side is lacked or is not had, at the different lockholes on the same set of well lid, the long lock flank of tooth of lock tooth may be in the left position of lockhole, also may be in the location right of lockhole, so the locking bar in the lockhole that has determined to have is to stir to right-hand member to reach purpose of opening, locking bar in the lockhole that has is to stir to left end to reach purpose of opening, only known stirring direction and could opening well lid of all locking bars on the same set of well lid, otherwise be difficult to open well lid, so just reached the purpose of utilizing coded lock locking well lid; A locking bar axially stop block is arranged on this cipher anti theft well lid, and this device can not move axially locking bar in lockhole, prevents to utilize feel to open well lid; The unlatching password of the cipher anti theft well lid of this kind structure is by the determining positions of long relative lockhole the right and left of the lock flank of tooth of lock tooth, so after well lid is lost, decorative cover need not be changed, need only more renew well lid, change the unlatching password and can reach antitheft purpose; The fixedly connected form of cipher anti theft pattern manhole cover lock tooth on locking bar of this kind structure is dismountable fixedly connected, pull down from locking bar so part need only be locked tooth when change opening password, falls turnback and installs and get final product.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is that the utility model well lid, decorative cover are the circular configuration schematic diagram.

Fig. 2 is the utility model circular lid coil structures schematic diagram.

Fig. 3 is the utility model round manhole cover structural representation.

Fig. 4 partly cuts open schematic diagram for the utility model first specific embodiment Fig. 3 looks up.

Fig. 5 is the utility model first specific embodiment round manhole cover upward view.

Fig. 6 is that the A-A of the utility model first specific embodiment round manhole cover Fig. 5 is to sectional view.

Fig. 7 looks up partial sectional view for the utility model first specific embodiment Fig. 1.

Fig. 8 is that the B-B of the utility model first specific embodiment Fig. 1 is to sectional view.

Fig. 9 is that the C-C of the utility model Fig. 8 is to cutaway view Amplified image.

Figure 10 is that the D-D of the utility model Fig. 8 is to cutaway view Amplified image.

Figure 11 is that the B-B of the utility model second specific embodiment Fig. 1 is to sectional view.

Figure 12 is that the B-B of the utility model the 3rd specific embodiment Fig. 1 is to sectional view.

Figure 13 is the square decorative cover structural representation of the utility model.

Figure 14 is that the utility model well lid, decorative cover are square, Yi Bian be the hinge engaging structure schematic diagram.

As shown in drawings, cipher anti theft well lid of the present utility model is by well lid 1, decorative cover 2 formations such as grade, when well lid 1 and decorative cover 2 are shaped as circle, be provided with positioning boss 7 at well lid 1 medial surface, corresponding decorative cover 2 is provided with locating slot 8, when well lid 1 and decorative cover 2 are shaped as other shape except that circular, positioning boss 7 and locating slot 8 then need not be set, well lid 1 is provided with the strip lockhole 3 more than 3 or 3, with the corresponding locking boss 4 that on decorative cover 2, all is provided with of the left end of lockhole 3 with right end position, the decorative cover 2 of just every cover well lid all is the same, locking bar 5 is housed in the lockhole 3, this locking bar 5 is a flat bar in the contact portion of lockhole 3 inwalls as can be seen from Figure 9, locking bar 5 can not rotate in lockhole 3, locking bar 5 is a square hole with lock tooth 6 mating holes as can be seen from Figure 10, cottor pin 10 is housed on the locking bar 5 makes lock tooth 6 be fixedly connected on the top of locking bar 5, and it is detachable, the lock tooth 6 relative locking bars 5 lock flank of tooth on one side is longer, the lock flank of tooth of another side is lacked or is not had, stir locking bar 5, locking bar 5 can drive lock tooth 6 move left and right, locking bar 5 is stirred to the direction that the long lock flank of tooth is arranged, lock tooth 6 may be stuck in locking boss 4 lower ends, reach the purpose of locking well lid 1, locking bar 5 is stirred to opposite direction, reaches the purpose of opening well lid 1, and a locking bar axially stop block is arranged on the cipher anti theft well lid of the present utility model.

Extremely shown in Figure 8 as Fig. 4, the locking bar axially stop block of the utility model first specific embodiment is to stop muscle 9 near the side setting far away from well lid 1 edge of each lockhole 3 on well lid 1 medial surface, this stops that muscle 9 is connected as a single entity, can play the effect of well lid reinforcing rib, when well lid 1 is built on decorative cover 2, stop that the bottom surface plane of living in of muscle 9 should be equal or a little less than locking boss 4 bottom surfaces plane of living in, lock tooth 6 is stuck in and stops muscle 9 lower ends.

As shown in figure 11, the locking bar axially stop block of the utility model second specific embodiment is a stop collar 12, and this stop collar 12 is contained on the locking bar 5, is between well lid 1 medial surface and the lock tooth 6.

As shown in figure 12, the locking bar axially stop block of the utility model the 3rd specific embodiment is a spacing collar 13, and this spacing collar 13 is contained on the locking bar 5, presses close to well lid 1 medial surface.

As shown in figure 13, cipher anti theft well lid of the present utility model can be the shape of various practicalities, and decorative cover shown in the figure 2 is square, and Dui Ying well lid 1 also should be square as can be known, and is provided with 6 lockholes 3.

As shown in figure 14, cipher structure for guarding against theft of the present utility model can be used with hinge 11, well lid 1, decorative cover 2 are preferably square at this moment, need only hinge 11 be housed on one side of well lid 1, decorative cover 2, offside is equipped with locking bar 5 on one side and gets final product, 3 locking bars 5 are housed among the figure, and this kind structure also is suitable for being applied on security door, the safety cabinet.

Claims (5)

1, a kind of cipher anti theft well lid, by well lid, formations such as decorative cover, when well lid and decorative cover are shaped as circle, be provided with positioning boss at the well lid medial surface, corresponding decorative cover is provided with locating slot, when well lid and decorative cover are shaped as other shape except that circular, then positioning boss and locating slot need not be set, well lid is provided with the strip lockhole more than 3 or 3, locking bar is housed in the lockhole, the locking bar top is connected with the lock tooth, stir locking bar, locking bar can drive lock tooth move left and right, it is characterized in that: with the corresponding locking boss that on decorative cover, all is provided with of the left end of lockhole with right end position, this locking bar is a flat bar in the contact portion of lockhole inwall, a locking bar axially stop block is arranged on this cipher anti theft well lid, the type of attachment of lock tooth on locking bar is fixedly connected, this relative locking bar of lock tooth lock flank of tooth on one side is longer, the lock flank of tooth of another side is lacked or is not had, locking bar is stirred to the direction that the long lock flank of tooth is arranged, and the lock tooth may be stuck in locking boss lower end, reaches locking well lid purpose, locking bar is stirred to opposite direction, reaches to open the well lid purpose.

2, cipher anti theft well lid according to claim 1, it is characterized in that: the locking bar axially stop block is at the muscle that stops near the side setting far away from the well lid edge of each lockhole on the well lid medial surface, this stops that muscle is connected as a single entity, when well lid is built on decorative cover, stop that the bottom surface plane of living in of muscle should be equal or a little less than locking boss bottom surface plane of living in, the lock tooth is stuck in and stops the muscle lower end.

3, cipher anti theft well lid according to claim 1 is characterized in that: the locking bar axially stop block is a stop collar, and this stop collar is contained on the locking bar, is between well lid medial surface and the lock tooth.

4, cipher anti theft well lid according to claim 1 is characterized in that: the locking bar axially stop block is a spacing collar, and this spacing collar is contained on the locking bar, presses close to the well lid medial surface.

5, according to any one described cipher anti theft well lid in the claim 1 to 4, it is characterized in that: the fixedly connected form of lock tooth on locking bar is dismountable fixedly connected.

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