CN2275601Y

CN2275601Y - Agricultural anti-theft manhole cover

Info

Publication number: CN2275601Y
Application number: CN 96225879
Authority: CN
Inventors: 范纯
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-10
Filing date: 1996-04-10
Publication date: 1998-03-04
Anticipated expiration: 2006-04-10

Abstract

The utility model relates to an agricultural anti-theft manhole cover which is composed of a ring support and a manhole cover. The utility model is characterized in that the ring support and the manhole cover are designed in an integral structure, and simultaneously, the circumference of a side wall is provided with lock seats which are arranged in a regular triangular and locking mechanisms arranged in the lock seats. The locking mechanism is composed of a lock core, a bolt, a rubber strip and a seal cap. The agricultural anti-theft manhole cover has the advantages of simple structure, easy fabrication, easy operation and use, dust collection, water resistance, silt blocking resistance, strong safety, low cost, convenient generalization, etc.

Description

Agricultural anti-theft manhole cover

The utility model relates to the anti-stealing manhole cover that irrigation and water conservancy is irrigated, and the Electrical Well anti-stealing manhole cover of usefulness is irrigated in particularly a kind of irrigation and water conservancy.

At present, the well that usefulness is irrigated in irrigation and water conservancy does not mostly have well lid and well house, throw about in the so frequent people of having Xiang Jing stone, brick and other foreign material, have in addition facility, accessory (as the well head water pump) in the well stolen, have a strong impact on field irrigation.Well house has been built in order to prevent the generation of this class incident in some place, but the door of well house or the situation that wall brick is stolen also usually take place, and presses for the well lid with anti-theft feature for this reason, discloses a kind of Safety well cover Chinese patent CN91207810.3 number in the recent period.It mainly is the Safety well cover that a kind of password locks, promptly in ring support, fix a positioning seat that is threaded through hole, the screw rod two ends that are assemblied in the positioning seat cooperate with handle and fixing pin respectively, and are fixed in the plug housing on the well lid, assemble fixing pin with spring.Though this technology has anti-theft feature, its complex structure, the cost height, coded lock uses also inconvenience in addition, and the well lid of this structure is a double-body bike simultaneously, and reliability is also relatively poor, so the performance of safe antitheft is lower.

The utility model improves at the problem that prior art exists, and design provides a kind of simple in structure, and is sealed or open conveniently reliability and the higher Agricultural anti-theft manhole cover of safe antitheft performance.

The utility model is achieved by following manner: a kind of Agricultural anti-theft manhole cover, comprise ring support, well lid and locking mechanism thereof, it is characterized in that: said ring support and well lid are designed to whole cylindrical shape, be provided with respectively simultaneously and be lock that equilateral triangle arranges and interior locking mechanism thereof at the sidewall circumferencial direction of ring support (circular), here locking mechanism is to be provided with respectively in three locks uniform on ring support, during use, sealed respectively one by one or open.

Said locking mechanism is made up of the lock core and dead bolt, the rubber bar of dead bolt front end and the capping of lock nose end that are arranged in the lock seat hole, wherein, three locking mechanisms that lock is interior, its structure is identical, going up among Fig. 2, right, be respectively unlocking condition, locked state and the decomposition umbrella-waiting state of locking mechanism down, the locking mechanism on right side is that the key that inserts the band handle just carries out the situation when sealed here.

The outer end parts of said lock core is designed to square, and on its four square limits on the right side the position fixture block of projection is set, be equipped with the key match with lock core profile and protruding fixture block thereof simultaneously.Key as the band handle that inserts in the right lock mechanism among Fig. 1,2.

In the present technique, ring support, well lid and lock can once-forming processing, as casting or forging and pressing etc., the capping of lock nose end mainly be prevent dust, waterproof and anti-silt particle obstruction etc.

The utility model mainly is to realize moving forward and backward of dead bolt by the fixture block of the projection on the lock core when work, make the preceding rubber bar of dead bolt compress or leave the well outer wall, align when inserting with the key of handle to cooperate in the lock seat hole and with the fixture block of lock core profile (square) and last projection thereof, pull the handle key this moment, and the drive lock core rotates, thereby the dead bolt that makes lock core advances or moves back, and can realize sealed like this or opens.

The utility model is compared with prior art, has simple in structurely, and globality is strong, makes easily, and easy for operation, security reliability is stronger, and cost is lower simultaneously, is convenient to promote.

Fig. 1 is front view of the present utility model (the B-B sectional drawing of Fig. 2);

Fig. 2 is the A-A sectional drawing of Fig. 1;

Fig. 3 is the C-C section partial enlarged drawing of Fig. 2;

Fig. 4 is the D-D section partial enlarged drawing of Fig. 2.

Among the figure: 1 well lid, 2 ring supports, 3 locks, 4 cappings, 5 springs, 6 bolts, 7 lock cores, 8 dead bolts, 9 rubber bars, 10 keys, 11 handles, 12 fixture blocks.

Most preferred embodiment of the present utility model is shown in Fig. 1-4.A kind of Agricultural anti-theft manhole cover, comprise ring support 2, well lid 1 and locking mechanism thereof, it is characterized in that: said ring support 2 and well lid 1 are designed to whole cylindrical shape, be provided with respectively simultaneously and be lock 3 that equilateral triangle arranges and interior locking mechanism thereof at the sidewall circumferencial direction of ring support 2 (circular), here locking mechanism is to be provided with respectively in three locks 3 uniform on ring support 2, during use, sealed respectively one by one or open.

Said locking mechanism is made up of the lock core 7 and dead bolt 8, the rubber bar 9 of dead bolt 8 front ends and the capping 4 of lock 3 nose ends that are arranged in lock 3 holes, wherein, locking mechanism in three locks 3, its structure is identical, going up among Fig. 2, right, be respectively unlocking condition, locked state and the decomposition umbrella-waiting state of locking mechanism down, the locking mechanism on right side is that the key 10 that inserts band handle 11 just carries out the situation when sealed here.

Said lock core 7 outer end parts are designed to square, and on its four square limits on the right side the position fixture block 12 of projection is set, be equipped with the key 10 match with lock core 7 profiles and protruding fixture block 12 thereof simultaneously.Key 10 as the band handle 11 that inserts in the right lock mechanism among Fig. 1,2.Present technique can be according to the large, medium and small all size of big or small corresponding manufacturing of well.

Claims

1, a kind of Agricultural anti-theft manhole cover, comprise ring support, well lid and locking mechanism thereof, feature of the present utility model is: said ring support and well lid are designed to whole cylindrical shape, are provided with respectively at the sidewall circumferencial direction of ring support simultaneously to be lock that equilateral triangle arranges and interior locking mechanism thereof.

2, a kind of Agricultural anti-theft manhole cover as claimed in claim 1 is characterized in that: said locking mechanism is made up of the lock core and dead bolt, the rubber bar of dead bolt front end and the capping of lock nose end that are arranged in the lock seat hole.

3, a kind of Agricultural anti-theft manhole cover as claimed in claim 1 or 2, it is characterized in that: the outer end parts of said lock core is designed to square, and on its four square limits on the right side the position fixture block of projection is set, be equipped with the key match with lock core profile and protruding fixture block thereof simultaneously.